CN117025012A - Thermo-optical dual-curing amphiphilic anti-fog coating composition and anti-fog film - Google Patents
Thermo-optical dual-curing amphiphilic anti-fog coating composition and anti-fog film Download PDFInfo
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- CN117025012A CN117025012A CN202311160225.9A CN202311160225A CN117025012A CN 117025012 A CN117025012 A CN 117025012A CN 202311160225 A CN202311160225 A CN 202311160225A CN 117025012 A CN117025012 A CN 117025012A
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- Prior art keywords
- monomer
- curing
- amphiphilic
- serving
- antifogging
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- QDWLLVUFTWGZRZ-UHFFFAOYSA-N diphenylmethanone;prop-2-enamide Chemical compound NC(=O)C=C.C=1C=CC=CC=1C(=O)C1=CC=CC=C1 QDWLLVUFTWGZRZ-UHFFFAOYSA-N 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- GJRQTCIYDGXPES-UHFFFAOYSA-N iso-butyl acetate Natural products CC(C)COC(C)=O GJRQTCIYDGXPES-UHFFFAOYSA-N 0.000 description 1
- FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 description 1
- OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 208000035139 partial with pericentral spikes epilepsy Diseases 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- WMOVHXAZOJBABW-UHFFFAOYSA-N tert-butyl acetate Chemical compound CC(=O)OC(C)(C)C WMOVHXAZOJBABW-UHFFFAOYSA-N 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/054—Forming anti-misting or drip-proofing coatings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a thermo-photo dual-curing amphiphilic antifogging coating composition and an antifogging film. The thermo-optical dual-curing amphiphilic antifogging coating and antifogging film can be applied to the antifogging field of transparent substrates such as glass and plastics of automobile windshields, automobile glass heat insulation films, automobile rearview mirrors, automobile lamps, goggles, bathroom mirrors and the like, and has wide application prospects.
Description
Technical Field
The invention relates to the technical field of anti-fog coating, in particular to a thermo-optic dual-curing amphiphilic anti-fog coating composition and an anti-fog film.
Background
At a certain temperature and humidity, water vapor may condense on the solid surface to form mist. Due to refraction and scattering of light, an original transparent material becomes blurred, so that the problem of fog is caused, such as automobile windshields, automobile lamps, unmanned radar cameras, glasses, goggles and the like, and inconvenience is brought to the work and life of people.
At present, a polymer anti-fog coating composition based on a high molecular material is an effective coating for solving the problem of fog in industry and life, wherein the inventor applies for a Chinese application patent with the patent number of CN202111336319.8, namely an anti-fog coating composition based on an amphiphilic copolymer, a preparation method and application thereof in 2021. However, polymer antifogging coating compositions based on high molecular materials, which are generally heat curing processes, face the problems of high curing temperature and long curing time, and tend to have low hardness. On the other hand, the ultraviolet curing process has the advantages of low temperature, short curing time and the like, but the film forming property, the hydrophilic and hydrophobic property, the antifogging property, the adhesive force and the like of the photo-curing antifogging coating composition are difficult to regulate and control at the same time.
Disclosure of Invention
The application aims to solve the problems that: the problems of low hardness and adhesive force, high curing temperature and long curing time of the high polymer anti-fog coating are overcome.
In order to solve the problems, the application provides a thermal-photo dual-curing amphiphilic antifogging coating composition and an antifogging film, which are based on the advantages of hydrophilicity regulation and film forming property of amphiphilic polymers, the photoinitiator monomers and the photoinitiator catalyst monomers are simultaneously introduced into the chain structure of the amphiphilic polymers, the photoinitiator on the polymer chain is catalyzed by the photoinitiator catalyst to generate free radicals, polymerization and crosslinking of multifunctional acrylate compounds in the antifogging coating composition are induced, heat curing and photo curing are further realized, and the heat curing temperature and the heat curing time are reduced, so that the antifogging coating composition and the antifogging film which are suitable for various substrates are prepared.
The thermal-optical dual-curing amphiphilic antifogging coating composition comprises the following raw materials: the thermal-photo-curing amphiphilic polymer main resin comprises a thermal-photo-curing amphiphilic polymer main resin, a thermal-curing crosslinking agent, a multifunctional acrylate compound, a photoinitiator, an acid catalyst, a leveling agent, a surfactant and a solvent.
The heat-light double-curing amphiphilic polymer main resin is prepared by a solution free radical polymerization reaction by adopting a well-known and relatively mature polymerization method, preferably a solution polymerization method in the free radical polymerization method. The simultaneous introduction of the photoinitiator monomer A and the photoinitiation catalyst monomer B into the amphiphilic polymer main resin is one of main innovation points of the invention.
Typical molecular structural formulas of the amphiphilic polymer main resin are as follows:
the number average molecular weight of the amphiphilic polymer main resin is 4000-1000000, preferably 6000-100000, wherein a, b, c, d, e is the polymerization degree of a monomer A, B, C, D, E respectively and is an integer;
R in the structural formula of monomer A 1 Is H or CH 3 Typical structures thereof are 4-acryloxybenzophenone and 4-methacryloxybenzophenone; monomer a is characterized by the inclusion of benzophenone functionality in the molecular structure.
R in the structural formula of monomer B 1 Is H or CH 3 ，R 2 Is straight-chain alkyl with carbon number of 1-10 and isomer thereof; r is R 3 Is straight-chain alkyl with carbon number of 1-10 and isomer thereof; the monomers B are characterized by compounds containing amino groups and olefins.
R in the structural formula of monomer C 1 Is H or CH 3 ，R 4 Is straight-chain alkyl with carbon number of 1-10 and isomer thereof; monomer C is characterized by a compound containing a hydroxyl group and an olefin.
R in the structural formula of monomer D 1 Is H or CH 3 ,R 5 Is H or straight-chain alkyl with 1-10 carbon atoms and isomers thereof.
R in the structural formula of the monomer E 1 Is H or CH 3 ,R 6 Is H or straight-chain alkyl with 1-10 carbon atoms and isomers thereof.
The photoinitiator monomer A in the amphiphilic polymer main resin is one or more of acrylic ester diphenyl ketone, acrylamide diphenyl ketone and olefin diphenyl ketone; the photoinitiation catalyst monomer B is one or more of compounds containing amino and olefin; the monomer C containing the heat curing functional group is one or more of olefin containing compounds containing hydroxyl or functional groups capable of being crosslinked or self-crosslinked with a crosslinking agent; the monomer D for adjusting the hydrophilicity is one or a mixture of more than one of acrylamide, acrylic acid, N-vinyl pyrrolidone and olefin monomer containing polyether chain segments; the monomer E for adjusting the hydrophobicity is one or a mixture of more of acrylic ester and olefin compounds.
The amphiphilic polymer main resin comprises the following components in percentage by weight: 0.5-15% of monomer A, 0.5-8% of monomer B, 5-25% of monomer C, 20-60% of monomer D and 15-65% of monomer E.
The thermo-optic dual-curing amphiphilic antifogging coating composition comprises, by weight, 100 parts of amphiphilic polymer main resin, 5-50 parts of thermosetting cross-linking agent, 40-150 parts of multifunctional acrylate compound, 1-15 parts of photoinitiator, 0.1-5 parts of acid catalyst, 0.05-5 parts of leveling agent, 5-50 parts of surfactant and 300-500 parts of solvent.
The thermosetting cross-linking agent is one or more of polyfunctional isocyanate cross-linking agent, blocked polyfunctional isocyanate cross-linking agent, amino resin, phenolic resin and glycoluril resin; the present invention is preferably an amino resin such as one or more of hexamethylol melamine resin, hexamethoxy methyl melamine resin, hexabutoxy methyl melamine resin, etc.
The multifunctional acrylate compound is one or more of prepolymer and monomer containing photo-curable and cross-linked multifunctional acrylate, and can be cross-linked with the photoinitiator functional group on the polymer chain. The multifunctional acrylate compound is prepolymer containing multifunctional acrylate, such as polyester, polyurethane, polyether, etc.; the multifunctional acrylate compound is a monomer containing multifunctional acrylate, such as pentaerythritol diacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, dipentaerythritol diacrylate, dipentaerythritol triacrylate, dipentaerythritol tetraacrylate, dipentaerythritol pentaacrylate, dipentaerythritol hexaacrylate, etc.
The photoinitiator is an auxiliary induction multi-functional acrylate compound to generate photo-crosslinking, and can be one or a mixture of a plurality of photoinitiators 651 (benzoin methyl ether), 819 (bis (2, 4, 6-trimethylbenzoyl) -phenyl phosphine oxide), 184 (1-hydroxycyclohexyl phenyl ketone), 150 (benzoin isobutyl ether) and 1001 (1-phenyl-1, 2-propanedione).
The acid catalyst catalyzes the crosslinking reaction of the hydroxyl functional group in the amphiphilic polymer chain and the thermosetting crosslinking agent at high temperature. The acid catalyst is one or more of p-toluenesulfonic acid, methanesulfonic acid, trifluoromethanesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, p-dodecylbenzenesulfonic acid, perfluorooctane sulfonic acid, etc.
The leveling agent is one or more of siloxane containing hydroxyl functional groups and polyether modified siloxane;
the surfactant is one or more of perfluoroethyl alcohol, perfluoropropyl ethyl alcohol, perfluorobutyl ethyl alcohol, perfluorohexyl ethyl alcohol, perfluorooctyl ethyl alcohol, perfluoroalkyl ethyl alcohol, perfluoroethyl ethyl alcohol polyoxyethylene ether, perfluoroethyl alcohol polyether, perfluoropropyl ethyl alcohol polyoxyethylene ether, perfluoropropyl ethyl alcohol polyether, perfluorobutyl ethyl alcohol polyoxyethylene ether, perfluorobutyl ethyl alcohol polyether, perfluorohexyl ethyl alcohol polyoxyethylene ether, perfluorohexyl ethyl alcohol polyether, perfluorooctyl ethyl alcohol polyoxyethylene ether, perfluorooctyl ethyl alcohol polyether, perfluoroalkyl ethyl alcohol polyoxyethylene ether and perfluoroalkyl ethyl alcohol polyether.
The solvent is one or more of alcohol solvent, alcohol ether solvent, ketone solvent, ether solvent, ester solvent, aromatic solvent, amine solvent, hydrocarbon solvent and water. Wherein the alcohol solvent is methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, sec-butanol, tert-butanol or diacetone alcohol; the alcohol ether solvent is ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, propylene glycol monomethyl ether and propylene glycol monoethyl ether; the ketone solvent is acetone, methyl ethyl ketone, methyl isobutyl ketone or cyclohexanone; the ether solvent is tetrahydrobarking or dioxane; the ester solvent is methyl acetate, ethyl acetate, n-butyl acetate, isobutyl acetate, tert-butyl acetate, methyl propionate or ethyl propionate; the aromatic solvent is benzene, toluene or xylene; the amine solvent is formamide or dimethylformamide; the hydrocarbon solvent is n-hexane, cyclohexane, n-heptane, n-octane or n-decane.
In order to solve the problems, the invention also provides a preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition, which comprises the steps of preparing materials according to the thermo-optic dual-curing amphiphilic antifogging coating composition, adding a monomer A, a monomer B, a monomer C, a monomer D and a monomer E into a propylene glycol monomethyl ether solvent, completely avoiding light and introducing nitrogen, and finally adding an initiator, wherein the weight of the initiator is 0.5-5% of the total weight of the five monomers, and reacting for 3-24 hours at 50-100 ℃ to obtain amphiphilic polymer main resin; the weight of the mixture of the five monomers and the initiator composition is 20-60% of the weight of propylene glycol monomethyl ether. Since the solvent residue greatly affects the adhesion of the coating film to the substrate when the coating film is dried and heated, a solvent system having a boiling point of not more than 250 ℃ and poor corrosion ability to the substrate is preferable. As the initiator for the radical polymer, general-purpose organic peroxides and azo compounds can be used.
Adding a thermosetting cross-linking agent, a multifunctional acrylate compound, a photoinitiator, an acid catalyst, a leveling agent, a surfactant and a solvent into the prepared amphiphilic polymer main resin, and stirring and mixing at room temperature to prepare the thermo-optical dual-curing amphiphilic anti-fog coating composition.
In order to solve the problems, the invention also provides an anti-fog coating, which is coated on the surface of a substrate according to the thermo-optical dual-curing amphiphilic anti-fog coating composition and thermally cured for 1-5min under the environmental condition of 100-130 ℃; and (3) photo-curing for 1-5min under the environment condition of an LED ultraviolet lamp box with the wavelength of 365nm and the power of 100-1000W, and finally preparing the anti-fog coating.
As the coating material base material, a transparent film, a sheet and a processed product thereof of polyacrylic resin, polycarbonate resin, polymethyl methacrylate resin, polyethylene terephthalate resin, polybutylene terephthalate, polyimide can be selected.
In order to solve the problems, the invention also provides an anti-fog film, according to the thermo-optic dual-curing amphiphilic anti-fog coating composition, the anti-fog coating composition is sprayed, sprayed or coated on the surface of a base film, the base film is a PET, PBT or PI film, the base film is thermally cured for 1-5min at 100-130 ℃, the light is cured for 0.1-5min under the LED ultraviolet light with the wavelength of 365nm and the power of 100-1000W, and finally the anti-fog film is prepared.
The antifogging film is applied to the antifogging field of transparent substrates such as glass and plastics of automobile windshields, automobile glass heat insulation films, automobile rearview mirrors, automobile lamps, goggles, bathroom mirrors and the like.
The implementation of the invention has the following beneficial effects:
1. the amphiphilic polymer main resin is prepared from a monomer A, a monomer B, a monomer C, a monomer D and a monomer E; the monomer A is a photoinitiator containing benzophenone, can be crosslinked with the multifunctional acrylate compound in the light-curing stage, and improves the hardness and adhesive force of the anti-fog coating; the monomer B is a photoinitiator catalyst containing amino groups and olefin, can catalyze the photoinitiator in the amphiphilic polymer chain to generate free radicals in the photo-curing stage, and induces the polymerization crosslinking reaction of the multifunctional acrylate compound.
2. The invention also defines the content of each monomer in the amphiphilic polymer main resin, and the content is calculated according to the weight percentage: the content of the monomer A is 0.5-15%, if the content of the monomer A is lower than 0.5%, the curing effect of the anti-fog coating is reduced, so that the hardness of the anti-fog film and the adhesion between the anti-fog film and a substrate are reduced, and when the content of the monomer A is higher than 15%, the crosslinking density of a polymer system is increased, and the anti-fog property of the anti-fog film is reduced; when the content of the monomer B is less than 0.5 percent, the photo-curing effect of the whole amphiphilic polymer anti-fog coating system is poor, the anti-fog property is poor, and the hardness and the adhesive force of the anti-fog film are reduced. When the content of the monomer B is higher than 8%, the amphiphilic polymer antifogging film is excessively cured, becomes brittle, and has reduced antifogging performance and adhesive force; the content of the monomer C is 5-25%, if the content of the monomer C is lower than 5%, the curing effect of the polymer is reduced, and if the content of the monomer C is higher than 25%, the crosslinking density of the polymer system is increased, and the antifogging property of the antifogging film is reduced; the content of the monomer D is 20-60%, and if the content of the monomer D is less than 20%, the adhesion between the antifogging film and the substrate is poor; when the content of the monomer D is more than 60%, the antifogging property of the antifogging film becomes poor; the content of the monomer E is 15-65%, if the content of the monomer E is lower than 15%, the high molecular polymer is hydrophilic, the adhesion between the antifogging film and the substrate is poor, and if the content of the monomer E is higher than 65%, the high molecular copolymer is hydrophobic, the adhesion between the antifogging film and the substrate is good, but the antifogging property is poor.
3. The invention limits the content of each component in the thermo-optic dual-curing amphiphilic anti-fog coating composition, and the content is based on 100 parts by weight of amphiphilic polymer: the content of the thermosetting cross-linking agent is 5-50 parts by weight, the cross-linking agent and the amphiphilic copolymer are subjected to cross-linking reaction under the heating condition to form an anti-fog film with a three-dimensional network structure, and when the content of the cross-linking agent is lower than 5 parts by weight or higher than 50 parts by weight, the anti-fog coating system formed by the amphiphilic copolymer has poor curing effect and poor anti-fog effect; the content of the multifunctional acrylate compound is 40-150 parts by weight, when the content of the multifunctional acrylate compound is less than 40 parts, the anti-fog film is caused to be crosslinked lower in the photo-curing stage, so that the adhesion between the anti-fog coating and a substrate is caused to be low, when the content of the multifunctional acrylate compound is more than 150 parts, the crosslinking degree of the anti-fog film is caused to be too high in the photo-curing stage, so that the anti-fog effect of the anti-fog film is deteriorated, a plurality of small water drops are formed on the surface, and a large-area uniform water film cannot be formed; 1-15 parts by weight of a photoinitiator, wherein when the content of the photoinitiator is lower than 1 part, the anti-fog film is not crosslinked sufficiently in the photo-curing stage, so that the hardness and the adhesion of the anti-fog film are lower, and when the content of the photoinitiator is higher than 15 parts, the anti-fog film is excessively crosslinked in the photo-curing stage, so that the anti-fog effect of the anti-fog film is poorer; the acid catalyst is 0.1-5 parts by weight, when the acid catalyst is less than 0.1 part, the heat curing effect of the anti-fog coating is poor, and when the acid catalyst is more than 5 parts, the adhesion of the anti-fog coating is reduced; the leveling agent is 0.05-5 parts by weight, the leveling agent can react with the crosslinking agent to be grafted in the antifogging coating main resin, the water is not carried out in the antifogging process, adverse phenomena such as flow marks and the like are prevented, when the content of the leveling agent is lower than 0.05 part by weight, the antifogging coating composition is poor in film forming property and easy to shrink and wrinkle, and when the content of the leveling agent is higher than 5 parts by weight, the antifogging film is poor in antifogging property; when the content of the surfactant is less than 5 parts by weight or more than 50 parts by weight, the antifogging effect of the antifogging coating composition film after curing is poor, and a plurality of small water drops are formed on the surface, so that a large-area uniform water film cannot be formed.
4. The curing process parameters of the thermo-optic dual-curing amphiphilic anti-fog coating composition are defined as follows: thermally curing at 100-130deg.C for 1-5min; light curing is carried out for 1-5min under the environment condition of an LED ultraviolet lamp box with the wavelength of 365nm and the power of 100-1000W; when the curing temperature is lower than 100 ℃, the heat curing time is lower than 1min, the ultraviolet power is lower than 100W, and the light curing time is lower than 1min, the curing effect of the anti-fog coating is poor; when the curing temperature is higher than 130 ℃, the heat curing time is higher than 5min, the ultraviolet power is higher than 1000W, and the light curing time is lower than 5min, the anti-fog coating is in transition in curing, and the anti-fog effect is poor.
5. The anti-fog coating and the anti-fog film prepared by the thermo-optic dual-curing amphiphilic anti-fog coating composition have the advantages of high hardness and adhesive force, low curing temperature, short curing time and wide application range, can be applied to the anti-fog fields of transparent substrates such as automobile windshields, automobile glass heat insulation films, automobile rearview mirrors, automobile lamps, goggles, bathroom mirrors and the like, and plastics and have wide application prospects.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of the preparation of an anti-fog coating with base film adhesion (breaking strength) test sample;
FIG. 2 shows the results of a hot water fumigation anti-fog test of example 1;
FIG. 3 is the water contact angle test results of the antifogging film in example 1;
FIG. 4 is a graph showing the transmittance of the antifogging film as a function of time during the hot water steaming for 5 minutes in example 1;
FIG. 5 is a graph showing the results of a stress-strain curve as characterized in example 1 during the determination of the adhesion of an anti-fog film to a base film.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The thermo-optic dual-curing amphiphilic antifogging coating composition comprises: the thermal-photo-curing amphiphilic polymer main resin comprises a thermal-photo-curing amphiphilic polymer main resin, a thermal-curing crosslinking agent, a multifunctional acrylate compound, a photoinitiator, an acid catalyst, a leveling agent, a surfactant and a solvent. The mixture ratio of each component is as follows: based on 100 parts by weight of amphiphilic polymer main resin, the content of the thermosetting cross-linking agent is 5-50 parts by weight, the content of the multifunctional acrylate compound is 40-150 parts by weight, the content of the photoinitiator is 1-15 parts by weight, the content of the acid catalyst is 0.1-5 parts by weight, the content of the leveling agent is 0.05-5 parts by weight, the content of the surfactant is 5-50 parts by weight, and the content of the solvent is 300-500 parts by weight.
An antifogging film is prepared from the heat-light dual-solidifying amphiphilic antifogging paint composition through spray coating, spray coating or coating it on the surface of basic film (PET, PBT and PI film), thermally solidifying at 100-130 deg.C for 1-5min, and photo-solidifying at 365nm wavelength and 100-1000W LED ultraviolet light for 0.1-5 min.
The technical scheme of the invention is described in detail below through specific examples and various comparative examples:
example 1
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
step one, preparing amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3.0g of 4-acryloxybenzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 48.2g of N, N-dimethylacrylamide serving as a monomer D and 32.0g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azodiisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide solvent, adding into a three-neck flask reactor, and continuously reacting for 5 hours at the temperature of a water bath kettle to 90 ℃ to obtain 200g of amphiphilic polymer solution with the mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution to obtain an amphiphilic copolymer solution, the mass concentration of the amphiphilic copolymer solution is adjusted to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 (according to the weight ratio of 1:1) of 4.0g of p-toluenesulfonic acid serving as a photoinitiator, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and mixed uniformly to obtain the composition of the thermo-optical dual-curing anti-fog coating.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 120 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 1
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
Step one, preparing amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 0.5g of 4-acryloyloxy benzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 50.7g of N, N-dimethylacrylamide serving as a monomer D and 32.0g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azodiisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide solvent, adding into a three-neck flask reactor, and continuously reacting for 5 hours at the temperature of a water bath kettle to 90 ℃ to obtain 200g of amphiphilic polymer solution with the mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 (according to the ratio of 1:1) of 4.0g of p-toluenesulfonic acid serving as a photoinitiator, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed, so that the composition of the thermo-optical dual-curing amphiphilic anti-fog coating is obtained.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 120 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 2
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
step one, preparing amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3g of 4-acryloxybenzophenone serving as a monomer A, 8g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 50.7g of N, N-dimethylacrylamide serving as a monomer D and 25g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azodiisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide solvent, adding into a three-neck flask reactor, and continuously reacting for 5 hours after the temperature of a water bath kettle is increased to 90 ℃ to obtain 200g of amphiphilic polymer solution with the mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 (according to the ratio of 1:1) of 4.0g of p-toluenesulfonic acid serving as a photoinitiator, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed, so that the composition of the thermo-optical dual-curing amphiphilic anti-fog coating is obtained.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 120 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 3
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
Step one, preparing amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3.0g of 4-acryloxybenzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 5g of hydroxyethyl acrylate serving as a monomer C, 48.2g of N, N-dimethylacrylamide serving as a monomer D and 42g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azobisisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide solvent, adding into a three-neck flask reactor, and continuously reacting for 5 hours after the temperature of a water bath kettle is raised to 90 ℃ to obtain 200g of amphiphilic polymer solution with the mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 (according to the ratio of 1:1) of 4.0g of p-toluenesulfonic acid serving as a photoinitiator, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed to obtain the composition of the thermo-optical dual-curing amphiphilic anti-fog coating.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 120 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 4
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
step one, preparing amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3.0g of 4-acryloxybenzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 48.2g of N, N-dimethylacrylamide serving as a monomer D and 32.0g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azodiisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide, adding the solution into the three-neck flask reactor, and continuously reacting for 5 hours after the temperature of the water bath kettle is increased to 90 ℃ to obtain 200g of amphiphilic polymer solution with the mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 (according to the ratio of 1:1) of 4.0g of p-toluenesulfonic acid serving as a photoinitiator, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed to obtain the composition of the thermo-optical dual-curing amphiphilic anti-fog coating.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 120 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 5
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
Step one, preparing amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3.0g of 4-acryloxybenzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 48.2g of N, N-dimethylacrylamide serving as a monomer D and 32.0g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azodiisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide, adding the solution into the three-neck flask reactor, and continuously reacting for 5 hours after the temperature of the water bath kettle is increased to 90 ℃ to obtain 200g of amphiphilic polymer solution with the mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 5g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 serving as a photoinitiator (according to the ratio of 1:1), 1.0g of p-toluenesulfonic acid serving as an acid catalyst, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed, so that the composition of the thermo-optical dual-curing amphiphilic anti-fog coating is obtained.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 120 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 6
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
step one, preparing amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3.0g of 4-acryloxybenzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 48.2g of N, N-dimethylacrylamide serving as a monomer D and 32.0g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azodiisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide, adding the solution into the three-neck flask reactor, and continuously reacting for 5 hours after the temperature of the water bath kettle is increased to 90 ℃ to obtain 200g of amphiphilic polymer solution with the mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 40g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 serving as a photoinitiator (according to the ratio of 1:1), 1.0g of p-toluenesulfonic acid serving as an acid catalyst, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed, so that the composition of the thermo-optical dual-curing amphiphilic anti-fog coating is obtained.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 120 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 7
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
Step one, preparing amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3.0g of 4-acryloxybenzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 48.2g of N, N-dimethylacrylamide serving as a monomer D and 32.0g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azodiisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide, adding the solution into the three-neck flask reactor, and continuously reacting for 5 hours after the temperature of the water bath kettle is increased to 90 ℃ to obtain 200g of amphiphilic polymer solution with the mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 1g651/819 serving as a photoinitiator (according to the ratio of 1:1), 1.0g of p-toluenesulfonic acid serving as an acid catalyst, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed, so that the composition of the thermo-optical dual-curing amphiphilic anti-fog coating is obtained.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 120 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 8
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
step one, preparing amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3.0g of 4-acryloxybenzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 48.2g of N, N-dimethylacrylamide serving as a monomer D and 32.0g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azodiisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide, adding the solution into the three-neck flask reactor, and continuously reacting for 5 hours after the temperature of the water bath kettle is increased to 90 ℃ to obtain 200g of amphiphilic polymer solution with the mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 (according to the ratio of 1:1) of 4.1 g of p-toluenesulfonic acid serving as a photoinitiator, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed to obtain the composition of the thermo-optical dual-curing amphiphilic anti-fog coating.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 120 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 9
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
Step one, preparing amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3.0g of 4-acryloxybenzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 48.2g of N, N-dimethylacrylamide serving as a monomer D and 32.0g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azodiisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide, adding the solution into the three-neck flask reactor, and continuously reacting for 5 hours after the temperature of the water bath kettle is increased to 90 ℃ to obtain 200g of amphiphilic polymer solution with the mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 (according to the ratio of 1:1) of 4.0g of p-toluenesulfonic acid serving as a photoinitiator, 5g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed, so that the composition of the thermo-optical dual-curing amphiphilic anti-fog coating is obtained.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 120 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 10
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
step one, preparing amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3.0g of 4-acryloxybenzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 48.2g of N, N-dimethylacrylamide serving as a monomer D and 32.0g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azodiisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide, adding the solution into the three-neck flask reactor, and continuously reacting for 5 hours after the temperature of the water bath kettle is increased to 90 ℃ to obtain 200g of amphiphilic polymer solution with the mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 (according to the ratio of 1:1) of 4.0g of p-toluenesulfonic acid serving as a photoinitiator, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 50g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed, so that the composition of the thermo-optical dual-curing amphiphilic anti-fog coating is obtained.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 120 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 11
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
Step one, preparing amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3.0g of 4-acryloxybenzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 48.2g of N, N-dimethylacrylamide serving as a monomer D and 32.0g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azodiisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide, adding the solution into the three-neck flask reactor, and continuously reacting for 5 hours after the temperature of the water bath kettle is increased to 90 ℃ to obtain 200g of amphiphilic polymer solution with the mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 (according to the ratio of 1:1) of 4.0g of p-toluenesulfonic acid serving as a photoinitiator, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed to obtain the composition of the thermo-optical dual-curing amphiphilic anti-fog coating.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 110 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 12
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
step one, preparing amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3.0g of 4-acryloxybenzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 48.2g of N, N-dimethylacrylamide serving as a monomer D and 32.0g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azodiisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide, adding the solution into the three-neck flask reactor, and continuously reacting for 5 hours after the temperature of the water bath kettle is increased to 90 ℃ to obtain 200g of amphiphilic polymer solution with the mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 (according to the ratio of 1:1) of 4.0g of p-toluenesulfonic acid serving as a photoinitiator, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed to obtain the composition of the thermo-optical dual-curing amphiphilic anti-fog coating.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 1 minute at 120 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 13
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
Step one, preparing an amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3.0g of 4-acryloxybenzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 48.2g of N, N-dimethylacrylamide serving as a monomer D and 32.0g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azobisisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide solvent, adding the solution into the three-neck flask reactor, and continuously reacting for 5 hours after the temperature of the water bath is increased to 90 ℃ to obtain 200g of an amphiphilic polymer solution with a mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 (according to the ratio of 1:1) of 4.0g of p-toluenesulfonic acid serving as a photoinitiator, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed to obtain the composition of the thermo-optical dual-curing amphiphilic anti-fog coating.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 120 ℃ in a dark place, then curing for 3 minutes under an LED ultraviolet lamp with the wavelength of 365nm and the power of 100W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
Comparative example 14
The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition comprises the following steps of:
step one, preparing an amphiphilic polymer main resin, namely adding 134.8g of propylene glycol monomethyl ether serving as a solvent, 3.0g of 4-acryloxybenzophenone serving as a monomer A, 1.0g of N, N-diethylaminoethyl methacrylate serving as a monomer B, 15.0g of hydroxyethyl acrylate serving as a monomer C, 48.2g of N, N-dimethylacrylamide serving as a monomer D and 32.0g of methyl methacrylate serving as a monomer E into a 500mL glass three-neck flask reaction vessel, heating to 70 ℃ under magnetic stirring, introducing nitrogen, dissolving 0.8g of azobisisobutyronitrile serving as a solution free radical polymerization initiator into 15.2g of N, N-dimethylformamide solvent, adding the solution into the three-neck flask reactor, and continuously reacting for 5 hours after the temperature of the water bath is increased to 90 ℃ to obtain 200g of an amphiphilic polymer solution with a mass concentration of 40%.
480g of n-propanol, 75g of N, N-dimethylformamide and 200g of n-butanol are added into 200g of the amphiphilic polymer solution, the mass concentration of the obtained amphiphilic copolymer solution is regulated to 8.4%, then 9.6g of hexamethoxy methyl melamine resin serving as a cross-linking agent, 48.0g of pentaerythritol triacrylate serving as a multifunctional acrylate compound, 4.0g651/819 (according to the ratio of 1:1) of 4.0g of p-toluenesulfonic acid serving as a photoinitiator, 0.1g of polyether modified polydimethylsiloxane serving as a leveling agent and 32.0g of perfluorohexyl ethyl alcohol serving as a surfactant are added into the amphiphilic copolymer solution with the mass concentration of 8.4%, and the mixture is stirred and uniformly mixed to obtain the composition of the thermo-optical dual-curing amphiphilic anti-fog coating.
And thirdly, coating the antifogging coating composition on the surface of a PET base film, curing for 3 minutes at 120 ℃ in a dark place, then curing for 1 minute under an LED ultraviolet lamp with the wavelength of 365nm and the power of 1000W, and finally preparing the antifogging film with the coating thickness of 2-8 um.
The method for evaluating the anti-fog coating properties of example 1 and comparative examples 1 to 14 is as follows:
evaluation of antifogging property: the antifog films of example 1 and comparative examples 1 to 14 were suspended at a height of 3cm from the hot water level at 80℃with the antifog coating facing down, whether or not fogging occurred within 5 minutes was observed by naked eyes, and the light transmittance of the antifog films was measured.
Water contact angle: the water contact angles of the anti-fog film surfaces of example 1 and comparative examples 1-14 were measured using a water contact angle tester (KRUSS, germany).
Adhesion force: as shown in fig. 1, after the antifogging coating was applied to the two base films, the base films were bonded and overlapped, heat-cured and photo-cured, and finally, a stress-strain tensile test was performed to determine the tensile strength at break.
Hardness: the surface hardness of the antifogging films of example 1 and comparative examples 1 to 14 was measured by a pencil hardness tester.
The component contents and evaluation result data of example 1 and comparative examples 1 to 14 are shown in Table 1:
TABLE 1 component content and Performance evaluation results of example 1 and comparative examples 1 to 14
Table 1 shows the formulation, curing process parameters and performance evaluation results of the anti-fog coating compositions of example 1 and comparative examples 1-14. N, N-dimethylformamide is hereinafter referred to as DMF, hydroxyethyl acrylate is hereinafter referred to as HEA, methyl methacrylate is hereinafter referred to as MMA, N, N-dimethylacrylamide is hereinafter referred to as DMAA, 4-acryloxybenzophenone is hereinafter referred to as 4-BP, N, N-diethylaminoethyl methacrylate is hereinafter referred to as DEAEMA, azobisisobutyronitrile is hereinafter referred to as AIBN, hexamethoxymethyl melamine resin is hereinafter referred to as HMMM, pentaerythritol triacrylate is hereinafter referred to as PETA, polyether modified polydimethylsiloxane is hereinafter referred to as PEPS, perfluorohexyl ethyl alcohol is hereinafter referred to as TEOH-6, and para-toluene sulfonic acid is hereinafter referred to as PTSA.
As shown in table 1, the anti-fog coating composition and the anti-fog film prepared in example 1 have excellent properties.
Referring to fig. 2, fig. 2 shows the hot water fumigation antifogging test result of example 1; as shown in fig. 2, the anti-fog film exhibited excellent anti-fog properties in a hot water steaming experiment Cheng Zhongbiao.
Referring to fig. 3, fig. 3 is a water contact angle experimental result of the antifogging film in example 1; the water contact angle was measured to be 30 °.
Referring to fig. 4, fig. 4 is a graph showing the time-dependent transmittance of the anti-fog film of example 1 during the hot water steaming for 5 minutes; the anti-fog film keeps the light transmittance continuously above 88% in the process of steaming for 5 minutes in hot water, and also proves that the anti-fog film has excellent anti-fog performance.
Referring to fig. 5, fig. 5 is a stress-strain curve experimental result of the anti-fog film and the base film in the process of measuring the adhesion of the anti-fog film in example 1; the two base films were bonded by the antifogging film, and the tensile strength at break was measured to be 3.22MPa.
Finally, the surface hardness of the antifogging coating and antifogging film was measured using a pencil hardness tester, which was 3H.
The above results confirm that the antifogging coating composition and the antifogging film of the present invention have excellent antifogging property, adhesion and hardness.
Compared with the example 1, the comparative example 1 reduces the proportion of the monomer A in the amphiphilic polymer by 0.5, and increases the proportion of the monomer D by 50.7; the antifogging property of the antifogging film was lowered, but the water contact angle was slightly lowered to 27 °, and the tensile strength and hardness were lowered to 1.36MPa and 1H, respectively. In comparative example 2, the proportion of monomer B in the amphiphilic polymer is increased to 8, and the proportion of monomer E is reduced to 25; the antifogging film has reduced antifogging property due to the increase of the photoinitiator catalyst and the increase of the curing, the water contact angle is increased to 33 degrees, and the tensile strength and the hardness are respectively increased to 4.88MPa and 4H. Comparative example 3 reduced the proportion of monomer C to 5 and increased the proportion of monomer E to 42, and the antifogging film had reduced heat curing crosslinking degree and increased hydrophobicity, so that antifogging property was reduced, water contact angle was increased to 35 °, and tensile strength and hardness were reduced to 1.66MPa and 1H, respectively. The comparative example 4 increases the proportion of the monomer D in the amphiphilic polymer to 60.2, decreases the proportion of the monomer E to 20, increases the hydrophilicity of the antifogging film, ensures that the antifogging film still has excellent antifogging property, reduces the water contact angle to 23 degrees, reduces the tensile strength to 3.06MPa, and ensures that the hardness is still 3H. Comparative example 5 reduced the heat curing crosslinking agent to 5g, and reduced the breaking strength and hardness to 2.26MPa and 2H, respectively, due to the reduced degree of curing, but reduced the water contact angle to 27 °, and still had excellent antifogging properties. Comparative example 6 reduced the multifunctional acrylate compound to 40g, and the break strength and hardness of the antifogging film were reduced to 2.46MPa and 2H, respectively, which had excellent antifogging property with a water contact angle of 25 °. Comparative example 7 reduced the photoinitiator to 1g, the breaking strength and hardness of the antifogging film were reduced to 1.88MPa and 1H, respectively, which had excellent antifogging property, and the water contact angle was 26 °. Comparative example 8 reduced the acid catalyst to 0.1g, and the breaking strength and hardness of the antifogging film were reduced to 1.9MPa and 1H, respectively, which had excellent antifogging property, and the water contact angle was 28 °. Comparative example 9 was increased to 5g of the leveling agent, and the breaking strength and hardness of the antifogging film were hardly changed to 3.15MPa and 3H, respectively, but the antifogging property thereof failed, and the water contact angle was increased to 37 °. Comparative example 10 increased 50g of surfactant, and the breaking strength and hardness of the antifogging film were hardly changed, respectively, to 3.05MPa and 3H, but the antifogging property thereof failed, and the water contact angle was increased to 38 °. Comparative example 11 reduced the heat curing temperature to 110℃and the breaking strength and hardness of the antifogging film were reduced to 2.63MPa and 2H, respectively, and the antifogging property was reduced, but the water contact angle was reduced to 27℃due to the reduction in curing. Comparative example 12 reduced the heat curing time to 1min, the breaking strength and hardness of the antifogging film were reduced to 2.52MPa and 2H, respectively, and the antifogging property was reduced, but the water contact angle was reduced to 26 ° due to the reduction in curing. Comparative example 13 reduced the photo-curing power to 100W, the breaking strength and hardness of the antifogging film were reduced to 1.27MPa and 1H, respectively, and the antifogging property failed, but the water contact angle was reduced to 23 ° due to the reduction in curing. Comparative example 14 reduced the photo-curing time to 1 minute, the breaking strength and hardness of the antifogging film were reduced to 2.53MPa and 2H, respectively, and the antifogging property was reduced, but the water contact angle was reduced to 25 ° due to the reduction in curing.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The thermo-optic dual-curing amphiphilic antifogging coating composition is characterized by comprising the following raw materials: the thermal-photo-curing type amphiphilic polymer main resin comprises a thermal-photo-curing type amphiphilic polymer main resin, a thermal-curing crosslinking agent, a multifunctional acrylate compound, a photoinitiator, an acid catalyst, a leveling agent, a surfactant and a solvent;
the heat-light dual-curing amphiphilic polymer main resin is prepared by a solution free radical polymerization reaction, wherein a polymerizable photoinitiator monomer A, a photoinitiating catalyst monomer B, a monomer C containing a heat curing functional group, a monomer D for adjusting hydrophilicity and a monomer E for adjusting hydrophobicity are simultaneously introduced into the heat-light dual-curing amphiphilic polymer main resin.
2. The thermo-optic dual cure amphiphilic anti-fog coating composition according to claim 1, wherein the amphiphilic polymeric main resin has a typical molecular structural formula:
The number average molecular weight of the amphiphilic polymer main resin is 4000-1000000, wherein a, b, c, d, e is the polymerization degree of a monomer A, B, C, D, E and is an integer;
r in the structural formula of the monomer A 1 Is H or CH 3 Typical structures thereof are 4-acryloxybenzophenone and 4-methacryloxybenzophenone;
r in the structural formula of the monomer B 1 Is H or CH 3 ，R 2 Is a straight-chain alkyl group with carbon number of 1-10 and an isomer, R 3 Is straight-chain alkyl with carbon number of 1-10 and isomer thereof;
r in the structural formula of the monomer C 1 Is H or CH 3 ，R 4 Is straight-chain alkyl with carbon number of 1-10 and isomer thereof;
the junction of the monomer DR in the structure 1 Is H or CH 3 ,R 5 Is H or straight-chain alkyl with 1-10 carbon atoms and isomers thereof;
r in the structural formula of the monomer E 1 Is H or CH 3 ,R 6 Is H or straight-chain alkyl with 1-10 carbon atoms and isomers thereof.
3. The thermo-optic dual-curing amphiphilic antifogging coating composition according to claim 2, wherein the photoinitiator monomer a in the amphiphilic polymer main resin is one or more of acrylic ester-containing benzophenone, acrylic amide-containing benzophenone and olefin-containing benzophenone; the photoinitiation catalyst monomer B is one or more of compounds containing amino and olefin; the monomer C containing the heat curing functional group is one or more of olefin containing compounds containing hydroxyl or functional groups capable of being crosslinked or self-crosslinked with a crosslinking agent; the monomer D for adjusting the hydrophilicity is one or a mixture of more than one of acrylamide, acrylic acid, N-vinyl pyrrolidone and olefin monomer containing polyether chain segments; the monomer E for adjusting the hydrophobicity is one or a mixture of more of acrylic ester and olefin compounds.
4. A thermo-optic dual cure amphiphilic anti-fog coating composition according to claim 3, wherein the amphiphilic polymeric host resin comprises, in weight percent: 0.5-15% of monomer A, 0.5-8% of monomer B, 5-25% of monomer C, 20-60% of monomer D and 15-65% of monomer E.
5. The thermo-optic dual-curing amphiphilic antifogging coating composition according to claim 4, wherein the content of the thermosetting cross-linking agent is 5-50 parts by weight, the content of the multifunctional acrylate compound is 40-150 parts by weight, the photoinitiator is 1-15 parts by weight, the acid catalyst is 0.1-5 parts by weight, the leveling agent is 0.05-5 parts by weight, the surfactant is 5-50 parts by weight, and the solvent is 300-500 parts by weight based on 100 parts by weight of the amphiphilic polymer main resin.
6. The thermo-optic dual cure amphiphilic antifogging coating composition according to claim 5, wherein,
the thermosetting cross-linking agent is one or more of polyfunctional isocyanate cross-linking agent, blocked polyfunctional isocyanate cross-linking agent, amino resin, phenolic resin and glycoluril resin;
the multifunctional acrylate compound is one or more of prepolymer and monomer containing photo-curable and cross-linked multifunctional acrylate;
The photoinitiator is one or more of benzoin methyl ether, bis (2, 4, 6-trimethylbenzoyl) -phenyl phosphine oxide, 1-hydroxycyclohexyl phenyl ketone, benzoin isobutyl ether and 1-phenyl-1, 2-propanediol;
the acid catalyst is one or more of p-toluenesulfonic acid, methanesulfonic acid, trifluoromethanesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, p-dodecylbenzenesulfonic acid, perfluorooctane sulfonic acid and the like;
the leveling agent is one or more of siloxane containing hydroxyl functional groups and polyether modified siloxane;
the surfactant is one or more of perfluoroethyl alcohol, perfluoropropyl ethyl alcohol, perfluorobutyl ethyl alcohol, perfluorohexyl ethyl alcohol, perfluorooctyl ethyl alcohol, perfluoroalkyl ethyl alcohol, perfluoroethyl alcohol polyoxyethylene ether, perfluoroethyl alcohol polyether, perfluoropropyl ethyl alcohol polyoxyethylene ether, perfluoropropyl ethyl alcohol polyether, perfluorobutyl ethyl alcohol polyoxyethylene ether, perfluorobutyl ethyl alcohol polyether, perfluorohexyl ethyl alcohol polyoxyethylene ether, perfluorohexyl ethyl alcohol polyether, perfluorooctyl ethyl alcohol polyoxyethylene ether, perfluorooctyl ethyl alcohol polyether, perfluoroalkyl ethyl alcohol polyoxyethylene ether and perfluoroalkyl ethyl alcohol polyether;
The solvent is one or more of alcohol solvent, alcohol ether solvent, ketone solvent, ether solvent, ester solvent, aromatic solvent, amine solvent, hydrocarbon solvent and water.
7. The preparation method of the thermo-optic dual-curing amphiphilic antifogging coating composition is characterized by comprising the steps of preparing materials according to the thermo-optic dual-curing amphiphilic antifogging coating composition, adding a monomer A, a monomer B, a monomer C, a monomer D and a monomer E into a propylene glycol monomethyl ether solvent, introducing nitrogen in the whole process, and finally adding an initiator, wherein the weight of the initiator is 0.5-5% of the total weight of five monomers, and reacting for 3-24 hours at 50-100 ℃ to obtain an amphiphilic polymer main resin; the weight of the mixture of the five monomers and the initiator composition is 20-60% of the weight of propylene glycol monomethyl ether, and the initiator is an organic peroxide or azo compound;
adding a thermosetting cross-linking agent, a multifunctional acrylate compound, a photoinitiator, an acid catalyst, a leveling agent, a surfactant and a solvent into the prepared amphiphilic polymer main resin, and stirring and mixing at room temperature to prepare the thermo-optical dual-curing amphiphilic anti-fog coating composition.
8. An anti-fog coating, characterized in that the thermo-optical dual-curing amphiphilic anti-fog coating composition according to claim 7 is coated on the surface of a substrate and thermally cured for 1-5min under the environmental condition of 100-130 ℃; under the environment condition of an LED ultraviolet lamp box with the wavelength of 365nm and the power of 100-1000W, photo-curing is carried out for 1-5min, and finally an anti-fog coating is prepared; the substrate is a transparent film, a plate and a processed product of polyacrylic resin, polycarbonate resin, polymethyl methacrylate resin, polyethylene terephthalate resin, polybutylene terephthalate and polyimide.
9. An antifogging film, characterized in that the thermo-optic dual-curing amphiphilic antifogging coating composition is coated on the surface of a base film by spraying, spraying or coating, the base film is a PET, PBT or PI film, the base film is thermally cured for 1-5min at 100-130 ℃, the base film is cured for 0.1-5min under the ultraviolet light of an LED with the wavelength of 365nm and the power of 100-1000W, and finally the antifogging film is prepared.
10. The antifogging film according to claim 9, which is used in the antifogging field of transparent substrates such as glass and plastic of automobile windshields, automobile glass heat insulation films, automobile rearview mirrors, automobile lamps, goggles, bathroom mirrors and the like.
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