CN112646097A - Polyacrylate-polyester copolymer and preparation method and application thereof - Google Patents
Polyacrylate-polyester copolymer and preparation method and application thereof Download PDFInfo
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- CN112646097A CN112646097A CN202011547778.6A CN202011547778A CN112646097A CN 112646097 A CN112646097 A CN 112646097A CN 202011547778 A CN202011547778 A CN 202011547778A CN 112646097 A CN112646097 A CN 112646097A
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- polyacrylate
- polyester copolymer
- acrylate
- polyester
- initiator
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- 229920000728 polyester Polymers 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000003999 initiator Substances 0.000 claims abstract description 20
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 17
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000000178 monomer Substances 0.000 claims abstract description 10
- 125000000524 functional group Chemical group 0.000 claims abstract description 8
- 238000006482 condensation reaction Methods 0.000 claims abstract description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002253 acid Substances 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- 229920001577 copolymer Polymers 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 8
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 6
- WSXIMVDZMNWNRF-UHFFFAOYSA-N antimony;ethane-1,2-diol Chemical group [Sb].OCCO WSXIMVDZMNWNRF-UHFFFAOYSA-N 0.000 claims description 5
- CBOIHMRHGLHBPB-UHFFFAOYSA-N hydroxymethyl Chemical compound O[CH2] CBOIHMRHGLHBPB-UHFFFAOYSA-N 0.000 claims description 5
- 125000000896 monocarboxylic acid group Chemical group 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 4
- -1 acrylic ester Chemical class 0.000 claims description 4
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 2
- MDFFNEOEWAXZRQ-UHFFFAOYSA-N aminyl Chemical group [NH2] MDFFNEOEWAXZRQ-UHFFFAOYSA-N 0.000 claims description 2
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 2
- 125000002081 peroxide group Chemical group 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 239000000654 additive Substances 0.000 claims 1
- 239000002390 adhesive tape Substances 0.000 abstract description 9
- 230000001070 adhesive effect Effects 0.000 abstract description 7
- 239000002904 solvent Substances 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 5
- 125000000864 peroxy group Chemical group O(O*)* 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 229920001400 block copolymer Polymers 0.000 abstract description 2
- 238000007334 copolymerization reaction Methods 0.000 abstract description 2
- 230000000977 initiatory effect Effects 0.000 abstract description 2
- 238000013508 migration Methods 0.000 abstract description 2
- 230000005012 migration Effects 0.000 abstract description 2
- 150000002978 peroxides Chemical class 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- C08F293/00—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
-
- 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
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
-
- 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
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/10—Adhesives in the form of films or foils without carriers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/387—Block-copolymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2453/00—Presence of block copolymer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesive Tapes (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
The invention discloses a preparation method of polyacrylate-polyester copolymer, which comprises the steps of firstly using dibasic acid, dihydric alcohol and a peroxide initiator containing two or more functional groups as raw materials to carry out condensation reaction to synthesize polyester, then adding an acrylate monomer, and initiating the acrylate monomer to carry out copolymerization reaction under the action of peroxy groups, thereby preparing the polyacrylate-polyester block copolymer. The polyacrylate-polyester segmented copolymer prepared by the invention has no problems of surface migration and gel, can be directly prepared into the pressure-sensitive adhesive tape by melting and stretching, has good adhesive property and stripping property, is free of solvent and coating, and can well solve the problems of solvent, corona, adhesive residue and complex process in the traditional preparation process of the acrylate adhesive tape.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a polyacrylate-polyester copolymer, a preparation method thereof and application of the polyacrylate-polyester copolymer in preparation of a non-coating pressure-sensitive adhesive tape.
Background
The acrylate pressure sensitive adhesive tape (also called acrylic pressure sensitive adhesive tape) is the adhesive tape with the largest consumption at present, and is applied to a plurality of fields such as protective films, labels, medical treatment, buildings and the like. The traditional preparation process of the acrylate pressure-sensitive adhesive generally comprises the steps of mixing an acrylate solution and a cross-linking agent, coating the mixture on polyester, PP and PE base materials, then volatilizing a solvent in a thermosetting mode, and then attaching a release film or directly rolling to obtain the pressure-sensitive adhesive tape. This preparation method has many problems, such as: (1) in the process of coating, the solvent is volatilized to pollute the environment, and the adhesive tape contains VOC (volatile organic compounds), so that the adhesive tape has adverse effects on human health; (2) before coating, polyester, PP and PE base materials need corona treatment or primary coating treatment to improve the bonding force of the base materials and the acrylate coating, extra energy consumption is needed, the two methods have certain timeliness, and the coating is easy to peel; (3) before coating, curing agents are required, the price of the small molecules of the curing agents is relatively high, and a metal catalyst is required for catalysis, so that the cost is increased; (4) the pressure sensitive adhesive tape is easy to generate adhesive transfer or ghost phenomenon when being peeled; (5) acrylate glue belongs to dangerous chemicals, and is comparatively loaded down with trivial details in transportation, the storage process.
In order to solve these problems, blending modification of polyacrylate and polyester by combination of functional groups has been studied, but polyacrylate and polyester are liable to phase separation and to migrate over a long period of time. In addition, functional groups reacted in the synthesis process of the traditional polyacrylate are in side chains, and are easy to gel after being blended and modified with polyester. Therefore, this method has a great limitation in practical use.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a polyacrylate-polyester copolymer, a preparation method thereof and application of the polyacrylate-polyester copolymer in preparation of a non-coating pressure-sensitive adhesive tape, and can solve the problems of solvent, corona, adhesive residue and complicated process in the traditional preparation process of the acrylate adhesive tape.
The invention provides a preparation method of a polyacrylate-polyester copolymer, which comprises the following steps:
s1, mixing dibasic acid, dihydric alcohol, a catalyst and an initiator under an anaerobic condition, heating and stirring for condensation reaction;
s2, adding an acrylate monomer into the reaction system obtained in the step S1 under an oxygen-free condition, and heating and stirring the mixture to perform polymerization reaction to obtain the acrylic ester acrylate copolymer;
the initiator is a peroxide initiator containing two or more functional groups, wherein the functional groups are COOH and CH2OH、NH2At least one of (1).
Preferably, the initiator has a structural formula as shown in formula (1):
in the formula (1), R is selected from COOH and CH2OH or NH2。
Preferably, the initiator is:
The synthetic route of the initiator is as follows:
(1)
(2)
preferably, in the preparation method, the raw materials are as follows in parts by mass:
dibasic acid: 1000-;
a dihydric alcohol: 1000-;
acrylate ester monomer: 1-500 parts;
catalyst: 0.2-1 part;
initiator: 0.1-2 parts.
Preferably, the diacid is at least one of terephthalic acid, isophthalic acid and phthalic acid; the glycol is ethylene glycol, propylene glycol or a combination thereof; the acrylate monomer is at least one of butyl acrylate, isooctyl acrylate and ethyl acrylate; the catalyst is ethylene glycol antimony, tetrabutyl titanate or a combination thereof.
Preferably, in the step S1, the reaction temperature is 200-300 ℃, and the reaction time is 2-4 h; in the step S2, the reaction temperature is 100-300 ℃, and the reaction time is 2-4 h.
Preferably, the oxygen-free condition is a vacuum condition or an inert gas protection condition.
A polyacrylate-polyester copolymer obtained by the preparation method.
The application of the polyacrylate-polyester copolymer in preparing pressure-sensitive adhesive tapes.
A pressure-sensitive adhesive tape without coating is prepared by directly melting and biaxially stretching the polyacrylate-polyester copolymer; or mixing the polyacrylate-polyester copolymer with a common auxiliary agent, melting, stretching in two directions, and attaching a release film.
The invention has the following beneficial effects:
the invention provides a preparation method of polyacrylate-polyester copolymer, which comprises the steps of mixing dibasic acid, dihydric alcohol and a mixture containing more than two COOH and CH2OH or NH2The method comprises the following steps of taking a peroxide initiator with a functional group as a raw material, carrying out condensation reaction under the action of a catalyst to synthesize polyester, introducing a peroxy group into a polyester molecule to obtain a polyester molecule containing the peroxy group, adding an acrylate monomer, and initiating the acrylate monomer to carry out copolymerization reaction under the action of the peroxy group, thereby preparing the polyacrylate-polyester block copolymer. The prepared polyacrylate-polyester segmented copolymer has no problems of surface migration and gel, can be directly prepared into the pressure-sensitive adhesive tape through melting and stretching, has good adhesive property and stripping property, is free of solvent and coating, and can well solve the problems of solvent, corona, adhesive residue and complex process in the traditional preparation process of the acrylate adhesive tape.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
Preparation of polyacrylate-polyester copolymer:
s1, mixing 2000 parts by mass of terephthalic acid, 1000 parts by mass of ethylene glycol, 0.2 part by mass of ethylene glycol antimony and 0.2 part by mass of an initiator under a vacuum condition, and heating and stirring at 280 ℃ for 3 hours to perform condensation reaction;
s2, adding 200 parts by mass of butyl acrylate into the reaction system obtained in the step S1 under a vacuum condition, and heating and stirring at 200 ℃ for 3 hours to perform polymerization reaction to obtain the product;
in S1, the structural formula of the initiator is as follows:
preparation of uncoated pressure sensitive adhesive tape:
fusing and biaxially stretching the prepared polyacrylate-polyester copolymer, and then attaching a release film to obtain the adhesive-free coating adhesive tape with the thickness of 50 microns.
Example 2
Preparation of polyacrylate-polyester copolymer:
s1, mixing 3000 parts by mass of terephthalic acid, 2000 parts by mass of hexanediol, 0.5 part by mass of ethylene glycol antimony and 0.4 part by mass of an initiator under a vacuum condition, and heating and stirring at 300 ℃ for 2 hours to perform condensation reaction;
s2, adding 400 parts by mass of isooctyl acrylate into the reaction system obtained in the step S1 under a vacuum condition, and heating and stirring for 2 hours at 300 ℃ to perform polymerization reaction to obtain the product;
in S1, the structural formula of the initiator is as follows:
preparation of uncoated pressure sensitive adhesive tape:
fusing and biaxially stretching the prepared polyacrylate-polyester copolymer, and then attaching a release film to obtain the adhesive-free coating adhesive tape with the thickness of 50 microns.
Example 3
Preparation of polyacrylate-polyester copolymer:
s1, mixing 1000 parts by mass of isophthalic acid, 1000 parts by mass of ethylene glycol, 0.3 part by mass of ethylene glycol antimony and 0.3 part by mass of an initiator under a vacuum condition, and heating and stirring at 200 ℃ for 4 hours to perform condensation reaction;
s2, adding 200 parts by mass of butyl acrylate and 200 parts by mass of isooctyl acrylate into the reaction system obtained in the step S1 under a vacuum condition, and heating and stirring at 100 ℃ for 4 hours to perform polymerization reaction to obtain the product;
in S1, the structural formula of the initiator is as follows:
preparation of uncoated pressure sensitive adhesive tape:
fusing and biaxially stretching the prepared polyacrylate-polyester copolymer, and then attaching a release film to obtain the adhesive-free coating adhesive tape with the thickness of 50 microns.
The uncoated pressure-sensitive tapes prepared in examples 1 to 3 were subjected to a performance test (the adhesive was a stainless steel plate) in which the initial adhesion test standard: GB/T4852-: GB/T4851-1998, test standards for peel strength: GB/T2972-1998; the test results are shown in table 1:
TABLE 1 uncoated pressure sensitive adhesive tape Performance test results
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A preparation method of a polyacrylate-polyester copolymer is characterized by comprising the following steps:
s1, mixing dibasic acid, dihydric alcohol, a catalyst and an initiator under an anaerobic condition, heating and stirring for condensation reaction;
s2, adding an acrylate monomer into the reaction system obtained in the step S1 under an oxygen-free condition, and heating and stirring the mixture to perform polymerization reaction to obtain the acrylic ester acrylate copolymer;
the initiator is a peroxide initiator containing two or more functional groups, wherein the functional groups are COOH and CH2OH、NH2At least one of (1).
2. The method of claim 1, wherein the initiator has a formula of formula (1):
in the formula (1), R is selected from COOH and CH2OH or NH2。
3. The method for preparing polyacrylate-polyester copolymer according to claim 1, wherein the method comprises the following raw materials in parts by mass:
dibasic acid: 1000-;
a dihydric alcohol: 1000-;
acrylate ester monomer: 1-500 parts;
catalyst: 0.2-1 part;
initiator: 0.1-2 parts.
4. The method for producing a polyacrylate-polyester copolymer according to claim 1, wherein the diacid is at least one of terephthalic acid, isophthalic acid, phthalic acid; the glycol is ethylene glycol, propylene glycol or a combination thereof; the acrylate monomer is at least one of butyl acrylate, isooctyl acrylate and ethyl acrylate; the catalyst is ethylene glycol antimony, tetrabutyl titanate or a combination thereof.
5. The method as claimed in claim 1, wherein the reaction temperature is 200-300 ℃ and the reaction time is 2-4h in the step S1; in the step S2, the reaction temperature is 100-300 ℃, and the reaction time is 2-4 h.
6. A polyacrylate-polyester copolymer obtained by the production method according to any one of claims 1 to 5.
7. Use of a polyacrylate-polyester copolymer according to claim 6 for the preparation of a pressure-sensitive adhesive tape.
8. A non-coating pressure-sensitive adhesive tape, which is characterized in that the polyacrylate-polyester copolymer of claim 6 is directly subjected to melting and biaxial stretching to obtain the polyacrylate-polyester copolymer; or mixing the polyacrylate-polyester copolymer of claim 6 with common additives, melting, stretching in two directions, and attaching a release film.
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| CN202011547778.6A CN112646097A (en) | 2020-12-23 | 2020-12-23 | Polyacrylate-polyester copolymer and preparation method and application thereof |
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| CN202011547778.6A CN112646097A (en) | 2020-12-23 | 2020-12-23 | Polyacrylate-polyester copolymer and preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118562105A (en) * | 2024-06-07 | 2024-08-30 | 九分生物新材料(深圳)有限公司 | Polyester resin, preparation method thereof, polyester pressure-sensitive adhesive and pressure-sensitive adhesive product |
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| CN110746586A (en) * | 2019-11-08 | 2020-02-04 | 华中科技大学 | Preparation method of polyacrylate-polyester I-polyester II triblock copolymer |
-
2020
- 2020-12-23 CN CN202011547778.6A patent/CN112646097A/en active Pending
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|---|---|---|---|---|
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