CN118146695A - Organosilicon modified epoxy temperature-resistant anti-corrosion primer and preparation method and application thereof - Google Patents
Organosilicon modified epoxy temperature-resistant anti-corrosion primer and preparation method and application thereof Download PDFInfo
- Publication number
- CN118146695A CN118146695A CN202410264381.8A CN202410264381A CN118146695A CN 118146695 A CN118146695 A CN 118146695A CN 202410264381 A CN202410264381 A CN 202410264381A CN 118146695 A CN118146695 A CN 118146695A
- Authority
- CN
- China
- Prior art keywords
- component
- parts
- modified epoxy
- epoxy resin
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/327—Aluminium phosphate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to an organosilicon modified epoxy temperature-resistant anticorrosion primer for base materials such as aluminum alloy, cast iron and the like, which consists of a component A, a component B and a component C; the component A comprises organosilicon modified epoxy resin, bisphenol A epoxy resin, phenolic epoxy resin, reactive diluent, auxiliary agent, pigment, filler and first ester solvent; the component B comprises a fatty polyamide curing agent, a modified amine curing agent, a curing accelerator, a second ester solvent and an alcohol solvent; the component C comprises a second ester solvent, an alcohol solvent and a silane coupling agent. The primer with good environmental protection is prepared by combining the high adhesive force, high water resistance and thermal stability of the high temperature resistant epoxy resin of the organic silicon modified epoxy resin, and additionally compounding the bisphenol A epoxy resin and the phenolic resin, and adding the nontoxic antirust Yan Diaoliao, the auxiliary agent and the VOC exemption solvent, and can be applied to a high temperature environment of 250 ℃ for a long time under a low film thickness, and has excellent mechanical property, corrosion resistance and chemical medium resistance.
Description
Technical Field
The invention relates to the technical field of functional coatings, in particular to an organosilicon modified epoxy temperature-resistant anti-corrosion primer and a preparation method and application thereof.
Background
The aeroengine is in a high-temperature state for a long time, has adverse effects on shell materials and safety, is a necessary way for solving the problem by developing and applying high-performance high-temperature-resistant coatings, mainly comprises inorganic high-temperature-resistant coatings, organic high-temperature-resistant coatings and the like, has good high-temperature resistance, is the most widely applied organic high-temperature coating at present, but the traditional organic coating is easy to degrade or carbonize at high temperature so as to fail, contains heavy metals such as lead, chromium and the like, and has great environmental pollution; the inorganic coating has better temperature resistance, is easy to prepare a high-temperature coating, but often has insufficient toughness. Therefore, the coating which is resistant to high temperature and environment-friendly and meets the requirement on toughness is developed, has very important significance, has good market prospect, is complex in use environment, can be used in more plateau and ocean environments, and has higher requirement on corrosion resistance of the coating.
Based on the above circumstances, development of a primer with environmental protection, corrosion resistance, high temperature resistance and excellent mechanical properties is a problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the organic silicon modified epoxy temperature-resistant anti-corrosion primer, which combines the high temperature resistance of organic silicon resin with the high adhesive force, high water resistance and thermal stability of epoxy resin, is compounded with bisphenol A type epoxy resin and phenolic resin, and various non-toxic rust prevention Yan Diaoliao, auxiliary agents, VOC exemption solvents and the like are added in the organic silicon modified epoxy temperature-resistant anti-corrosion primer, so that the prepared primer has good environmental protection, can be applied to a high temperature environment of 250 ℃ for a long time under the condition of low film thickness (17-22 mu m), and has excellent adhesive force, corrosion resistance and chemical medium resistance.
The invention aims at providing an organosilicon modified epoxy temperature-resistant anticorrosive primer, which comprises an A component, a B component and a C component;
the component A comprises organosilicon modified epoxy resin, bisphenol A epoxy resin, phenolic epoxy resin, reactive diluent, auxiliary agent, pigment, filler and first ester solvent;
The component B comprises polyamide curing agent, modified amine curing agent, curing accelerator, second ester solvent and alcohol solvent;
The component C comprises a second ester solvent, an alcohol solvent and a coupling agent;
the total weight of the component A is 100 parts:
the total weight of the component B is 100 parts:
the total weight of the component C is 100 parts:
77 to 87 parts by weight of a second ester solvent
8 To 13 parts by weight of an alcohol solvent
5-10 Parts by weight of a coupling agent;
wherein the mass ratio of the component A to the component B to the component C is 7-9: 1:4 to 6, preferably 7 to 8:1:4 to 5. The skilled person can select the proper mass ratio of the A component, the B component and the C component according to the actual requirements.
In the component A, the bisphenol A type epoxy resin is one or more of 618, 6101, 637 and 634; the phenolic epoxy resin is one or more of F44, F51, DEN425 and DEN 431; the reactive diluent is one or more of 660, 6360, 5784 and 692. In the component B, the polyamide curing agent is one or more of Versamid 150, versamid 125, versamid 140 and Sunmide; the modified amine curing agent is one or more of JH5473 and JH5432S, EH and S, EH L; the curing accelerator is one or more of ANCAMINE K, DMP-30 and OP 8658. In the component C, the coupling agent is one or more of KH550, KH560, KH570 and KH 125. The skilled person can select the appropriate bisphenol a type epoxy resin, phenolic epoxy resin, reactive diluent, polyamide curing agent, modified amine curing agent, curing accelerator and coupling agent according to the actual requirements.
In a preferred embodiment of the present invention, the component a comprises 100 parts by weight of:
the total weight of the component B is 100 parts:
the total weight of the component C is 100 parts:
80 to 85 parts by weight of a second ester solvent
9 To 11 parts by weight of an alcohol solvent
6-9 Parts of coupling agent.
In a preferred embodiment of the present invention, the silicone modified epoxy resin in component A is prepared by reacting the following materials
In a preferred embodiment of the present invention, the phenyl siloxane resin is one or two of vinyl-terminated methylphenyl polysiloxane, polydimethylsiloxane, phenyl-trimethicone, and phenyl-modified polysiloxane.
In a preferred embodiment of the present invention, the silicone modified epoxy resin is prepared by the following method:
S1: mixing epoxy resin and dimethylbenzene, and heating;
s2: adding phenyl siloxane resin and a color changing agent, and heating;
s3: dropwise adding a catalyst, and heating for reaction;
S4: cooling, adding butyl acetate, and reacting to obtain the organosilicon modified epoxy resin;
the invention adopts the following technical scheme:
s1: adding epoxy resin and dimethylbenzene into a reaction kettle, and slowly heating;
s2: adding phenyl siloxane resin and a color changing agent into epoxy resin and dimethylbenzene, and heating under the protection of nitrogen;
S3: dropwise adding a catalyst into the mixture, fully and uniformly stirring the mixture, heating the mixture, preserving heat, and continuously stirring the mixture to obtain transparent liquid;
s4: and cooling the transparent liquid, adding butyl acetate, stirring, filtering and packaging to obtain the organosilicon modified epoxy resin.
In the invention, the epoxy resin is one or two of 601, 6101, 638 and GY 250. The catalyst is dibutyl tin dilaurate. The skilled person can select a suitable epoxy resin according to the actual needs. The color-changing agent of the organosilicon modified epoxy resin is selected from conventional commercial products.
In a preferred embodiment of the present invention, in step S1, the temperature is 55 to 60 ℃; in the step S2, the temperature is 75-80 ℃; in the step S3, the temperature is 105-115 ℃ and the reaction time is 3-5 h; in the step S4, the temperature is 70-90 ℃ and the reaction time is 2-3 h. The skilled person can select a proper reaction temperature and a proper reaction time according to practical situations.
In a preferred embodiment of the present invention, in the component a, the filler is two or more of barium sulfate, modified talc, alumina, diatomaceous earth, fumed silica, mica powder, organobentonite, and conductive graphite; the pigment comprises an environment-friendly antirust pigment and a coloring pigment; wherein, the environment-friendly antirust pigment is preferably two or more of zinc molybdate, zinc phosphate, modified zinc phosphate, composite zinc phosphate, high-purity zinc phosphate, aluminum tripolyphosphate and polymeric antirust materials; the coloring pigment is preferably titanium dioxide, iron oxide red or basf pigment; the first ester solvent is at least one of ethyl acetate, butyl acetate and tert-butyl acetate. The skilled person can choose suitable fillers, pigments, first ester solvents according to the actual situation.
The auxiliary agent comprises a wetting dispersant, a defoaming agent, an ultraviolet absorber and an antioxidant. Wherein, the defoamer is preferably one or two of modified polysiloxane or polyether solutions; the wetting dispersant is one or more of EFKA4310 type, EFKA4700 type, AFCONA type 4015 type, AFCONA4010 and AFCONA 4071; the antioxidant is one or more of 168, 628 and 1076; the ultraviolet absorber is one or more of UV-P, UV-5050, UV531 and UV 328. The skilled person can choose the appropriate auxiliaries according to the actual situation.
In a preferred embodiment of the present invention, in the B and C components,
The second ester solvents in the component B and the component C can be the same or different and are respectively and independently selected from one or more of ethyl acetate, butyl acetate, tertiary butyl acetate and propylene glycol methyl ether acetate; and/or
The alcohol solvent is one or two of n-butanol and isopropanol.
In a preferred embodiment of the invention, the a-component is prepared by the following method:
(1) Mixing the organosilicon modified epoxy resin, the first ester solvent, the wetting dispersant, the defoamer, the environment-friendly antirust pigment, the coloring pigment, the antioxidant, the ultraviolet absorber and the filler, and stirring to obtain mixed slurry;
(2) Grinding the mixed slurry to fineness less than or equal to 15 mu m, adding the bisphenol A epoxy resin, the phenolic epoxy resin and the reactive diluent, dispersing, and uniformly mixing to obtain the component A.
The invention adopts the following technical scheme:
(1) Adding the organosilicon modified epoxy resin, the first ester solvent, the wetting dispersant and the defoamer into a movable tank, and stirring at a high speed for 10-20 min;
(2) Stirring at a high speed is changed into stirring at a low speed, and environment-friendly antirust pigment, coloring pigment, antioxidant, ultraviolet absorbent and filler are sequentially added under stirring at a low speed, and dispersed at a high speed for 30-60 min to obtain mixed slurry;
(3) Grinding the mixed slurry to fineness less than or equal to 15 mu m, adding bisphenol A epoxy resin, phenolic epoxy resin and reactive diluent, dispersing at low speed for 30-60 min, and regulating the content of non-volatile matters to 70% -75% after uniform mixing to obtain the component A.
In the invention, the component B is prepared by the following method: mixing the polyamide curing agent, the modified amine curing agent, the curing accelerator, the second ester solvent and the alcohol solvent, stirring for 30-60 min, and adjusting the content of non-volatile matters to 68% -72% to obtain a component B; the component C is prepared by the following method: mixing the second ester solvent, alcohol solvent and coupling agent, stirring for 10min, and regulating the content of non-volatile matter to not more than 25mg per 100ml to obtain component C.
The second object of the invention is to provide a method for preparing the organosilicon modified epoxy heat-resistant anticorrosive primer, which is one of the objects of the invention, and the method comprises the following steps:
mixing the components of the component A according to parts by weight to obtain the component A; mixing the components of the component B according to parts by weight to obtain the component B; mixing the components of the component C according to parts by weight to obtain the component C; and mixing the component A, the component B and the component C according to the dosage, and curing to obtain the organosilicon modified epoxy temperature-resistant anticorrosion primer.
The invention aims at providing an organosilicon modified epoxy temperature-resistant anticorrosive primer which is one of the aims of the invention or an organosilicon modified epoxy temperature-resistant anticorrosive primer which is prepared by the two of the aims of the invention, and the organosilicon modified epoxy temperature-resistant anticorrosive primer is applied to the surface of a metal material.
First, a substrate pretreatment is performed. For the aluminum alloy substrate, firstly cleaning the aluminum alloy substrate by a solvent (acetone or butanone) and polishing the aluminum alloy substrate in clear water in sequence until a continuous water film appears for 30 seconds, cleaning the aluminum alloy substrate by distilled water, and then carrying out surface treatment by using alotin (or sulfuric acid anodized or chromic acid anodized); and (3) mechanically polishing and solvent wiping the base materials such as cast iron and the like to construct the cast iron. And then spraying: the A, B, C components are fully and uniformly mixed, kept stand and cured for 10 minutes, filtered by a filter screen with more than 120 meshes, sprayed by adopting conventional air, wherein the preferable range of the spray gun nozzle size is 0.8-1.2 mm, the preferable range of the spray gun atomization pressure is 2.0-3.0 bar, and the preferable range of the viscosity of the construction coating-4 cup is 15-20 s. Preferably, the dry film thickness of the organosilicon modified epoxy temperature-resistant anticorrosion primer on the surface of the metal material is 17-22 mu m.
Compared with the prior art, the invention has the following beneficial effects:
1. The organosilicon modified epoxy temperature-resistant anticorrosion primer adopts a filler formed by doping a plurality of metal oxides, can effectively form a compact protective layer on the surface of steel, is isolated from surrounding substances, can effectively protect a base material and an engine for a long time, and has good protection effect on the environment because the organosilicon modified epoxy temperature-resistant anticorrosion primer does not contain toxic antirust materials such as lead, chromium and the like and non-exemption solvents.
2. The organosilicon modified epoxy temperature-resistant anticorrosive primer has excellent flexibility, adhesive force, water resistance, chemical medium resistance, high and low temperature resistance, impact resistance and corrosion resistance, and can be applied to a high-temperature environment of 250 ℃ for a long time under a low film thickness.
3. The organosilicon modified epoxy temperature-resistant anti-corrosion primer can be applied to the surfaces of various metal materials, and plays roles in marking, corrosion resistance and base material thermal oxidation prevention.
Detailed Description
The present invention is described in detail below with reference to specific embodiments, and it should be noted that the following embodiments are only for further description of the present invention and should not be construed as limiting the scope of the present invention, and some insubstantial modifications and adjustments of the present invention by those skilled in the art from the present disclosure are still within the scope of the present invention.
The raw materials used in examples and comparative examples were conventional commercially available raw materials.
The parts in examples and comparative examples are parts by weight.
Example 1
1. The organosilicon modified epoxy temperature-resistant anticorrosion primer consists of A, B, C components, wherein the mass ratio of the raw materials of the components is as follows:
(1) The component A comprises the following components: 28 parts of organosilicon modified epoxy resin, 0.05 part of defoamer, 1 part of wetting dispersant, 14 parts of environment-friendly antirust pigment, 7 parts of functional filler, 16 parts of coloring pigment, 0.05 part of antioxidant, 0.1 part of ultraviolet absorber, 8 parts of first ester solvent, 18 parts of bisphenol A epoxy resin, 4.8 parts of phenolic epoxy resin and 3 parts of reactive diluent.
Wherein, the environment-friendly antirust pigment in the component A is prepared by compounding zinc molybdate, high-purity zinc phosphate and modified aluminum tripolyphosphate according to the weight ratio of 4:2:1; the functional filler is compounded by mica powder, talcum powder, barium sulfate, aluminum oxide and conductive graphite according to the weight ratio of 1:1.5:1.5:0.05; the first ester solvent is butyl acetate: the tertiary butyl acetate is compounded according to the weight ratio of 1:1.
Wherein the organosilicon modified epoxy resin is prepared by the following raw materials
The preparation method of the organosilicon modified epoxy resin comprises the following steps:
s1, adding epoxy resin and dimethylbenzene into a reaction kettle, and slowly heating to 60 ℃;
S2: adding phenyl siloxane resin and a color-changing agent into epoxy resin and dimethylbenzene, and heating to 80 ℃ under the protection of nitrogen;
s3: dropwise adding a catalyst into the mixture, fully and uniformly stirring the mixture, heating the mixture to 110 ℃, preserving heat, and continuously stirring the mixture for 3 hours to obtain transparent liquid;
s4: and cooling the transparent liquid to 80 ℃, adding butyl acetate, stirring for 2 hours, filtering and packaging to obtain the organosilicon modified epoxy resin.
(2) The component B comprises: 46 parts of polyamide curing agent, 24 parts of modified amine curing agent, 6 parts of curing accelerator, 19 parts of tertiary butyl acetate and 5 parts of n-butyl alcohol.
(3) The component C comprises the following components: 10 parts of isopropanol, 40 parts of tert-butyl acetate, 43 parts of butyl acetate and 7 parts of a coupling agent.
2. The preparation method of the organosilicon modified epoxy temperature-resistant anticorrosion primer comprises the following steps:
(1) Preparing a component A: adding the organosilicon modified epoxy resin, the first ester solvent, the wetting dispersant and the defoamer into a movable tank, stirring at a high speed for 20min, sequentially adding the environment-friendly antirust pigment, the coloring pigment, the antioxidant, the ultraviolet absorber and the filler under low-speed stirring, and dispersing at a high speed for 60min to obtain mixed slurry; grinding the mixed slurry to fineness less than or equal to 15 mu m, adding bisphenol A epoxy resin, phenolic epoxy resin and reactive diluent, dispersing at low speed for 60min, and regulating the content of non-volatile matters to 70% after uniform mixing to obtain the component A.
(2) And (3) preparing a component B: mixing polyamide curing agent, modified amine curing agent, curing accelerator, tert-butyl acetate and n-butyl alcohol, stirring for 60min, and regulating the content of non-volatile matters to 70% to obtain component B.
(3) And (3) preparing a component C: mixing isopropanol, tert-butyl acetate, butyl acetate and coupling agent, stirring for 10min, and regulating the content of non-volatile matter to not more than 25mg per 100ml to obtain component C.
Mixing before construction: and (3) fully mixing the component A, the component B and the component C according to the weight ratio of 8:1:4, curing for 10 minutes to obtain the organosilicon modified epoxy temperature-resistant anti-corrosion primer, and filtering with a filter screen with more than 120 meshes to obtain the epoxy heat-resistant anti-corrosion primer for spraying.
3. The construction process of the organosilicon modified epoxy temperature-resistant anticorrosion primer comprises the following steps:
Pretreatment of a base material: the aluminum alloy substrate is treated by sequentially cleaning with a solvent (acetone or butanone) and polishing in clear water until a continuous water film appears for 30 seconds, cleaning with distilled water, and then surface treatment with allotin (or sulfuric acid anodized or chromic acid anodized).
Spraying: with conventional air spraying, the spray gun nozzle size is preferably 0.8mm and the spray gun atomization pressure is preferably 2.0bar. Finally obtaining the organosilicon modified epoxy temperature-resistant anti-corrosion primer film, wherein the dry film thickness is 22 mu m, and the viscosity of the construction coating-4 cup is 15-20s.
Example 2
1. The organosilicon modified epoxy temperature-resistant anticorrosion primer consists of A, B, C components, wherein the mass ratio of the raw materials of the components is as follows:
(1) The component A comprises the following components: 26 parts of organosilicon modified epoxy resin, 0.1 part of defoamer, 1 part of wetting dispersant, 13 parts of environment-friendly antirust pigment, 8 parts of functional filler, 16 parts of coloring pigment, 0.05 part of antioxidant, 0.1 part of ultraviolet absorber, 8 parts of first ester solvent, 19 parts of bisphenol A epoxy resin, 5.75 parts of phenolic epoxy resin and 3 parts of reactive diluent.
Wherein, the environment-friendly antirust pigment in the component A is prepared by compounding zinc molybdate, modified zinc phosphate and polymeric antirust material according to the weight ratio of 8:5:1; the functional filler is compounded by mica powder, talcum powder, barium sulfate, alumina and fumed silica according to the weight ratio of 1:1.5:1:1.5:0.1; the first ester solvent is butyl acetate: the tertiary butyl acetate is compounded according to the weight ratio of 1:1.
Wherein the organosilicon modified epoxy resin is prepared by the following raw materials
The preparation method of the organosilicon modified epoxy resin is the same as that of the example 1.
(2) The component B comprises: 43 parts of polyamide curing agent, 28 parts of modified amine curing agent, 5 parts of curing accelerator, 19 parts of tertiary butyl acetate and 5 parts of n-butyl alcohol.
(3) The component C comprises the following components: 10 parts of isopropanol, 40 parts of tert-butyl acetate, 43 parts of butyl acetate and 7 parts of a coupling agent.
2. The preparation method of the organosilicon modified epoxy temperature-resistant anticorrosion primer comprises the following steps: as in example 1.
3. The construction process of the organosilicon modified epoxy heat-resistant anticorrosive primer comprises the following steps: as in example 1.
Example 3
1. The organosilicon modified epoxy temperature-resistant anticorrosion primer consists of A, B, C components, wherein the mass ratio of the raw materials of the components is as follows:
(1) The component A comprises the following components: 29 parts of organic silicon modified epoxy resin, 0.05 part of defoaming agent, 1 part of wetting dispersant, 14 parts of environment-friendly antirust pigment, 7 parts of functional filler, 16 parts of coloring pigment, 0.05 part of antioxidant, 0.1 part of ultraviolet absorber, 8 parts of first ester solvent, 17 parts of bisphenol A type epoxy resin, 4.8 parts of phenolic epoxy resin and 3 parts of reactive diluent.
Wherein, the environment-friendly antirust pigment in the component A is prepared by compounding zinc molybdate, modified zinc phosphate and modified aluminum tripolyphosphate according to the weight ratio of 10:5:1; the functional filler is compounded by mica powder, talcum powder, barium sulfate, aluminum oxide and conductive graphite according to the weight ratio of 1:1.5:1.5:0.05; the first ester solvent is butyl acetate: the tertiary butyl acetate is compounded according to the weight ratio of 1:1.
Wherein the organosilicon modified epoxy resin is prepared by the following raw materials
The preparation method of the organosilicon modified epoxy resin is the same as that of the example 1.
(2) The component B comprises: 47 parts of polyamide curing agent, 22 parts of modified amine curing agent, 7 parts of curing accelerator, 19 parts of tertiary butyl acetate and 5 parts of n-butyl alcohol.
(3) The component C comprises the following components: 10 parts of isopropanol, 40 parts of tert-butyl acetate, 43 parts of butyl acetate and 7 parts of a coupling agent.
2. The preparation method of the organosilicon modified epoxy temperature-resistant anticorrosion primer comprises the following steps: as in example 1.
3. The construction process of the organosilicon modified epoxy heat-resistant anticorrosive primer comprises the following steps: as in example 1.
Example 4
1. The organosilicon modified epoxy temperature-resistant anticorrosion primer consists of A, B, C components, wherein the mass ratio of the raw materials of the components is as follows:
(1) The component A comprises the following components: 23 parts of organosilicon modified epoxy resin, 0.05 part of defoamer, 1 part of wetting dispersant, 14 parts of environment-friendly antirust pigment, 8 parts of functional filler, 16 parts of coloring pigment, 0.05 part of antioxidant, 0.1 part of ultraviolet absorber, 8 parts of first ester solvent, 21 parts of bisphenol A epoxy resin, 5.8 parts of phenolic epoxy resin and 3 parts of reactive diluent.
Wherein, the environment-friendly antirust pigment in the component A is prepared by compounding zinc molybdate, high-purity zinc phosphate, modified aluminum tripolyphosphate and polymeric antirust material according to the weight ratio of 4:2:1:1.5; the functional filler is compounded by mica powder, talcum powder, barium sulfate, alumina and fumed silica according to the weight ratio of 1:1.5:1:1.5:0.1; the first ester solvent is butyl acetate: the tertiary butyl acetate is compounded according to the weight ratio of 1:1.
Wherein the organosilicon modified epoxy resin is prepared by the following raw materials
The preparation method of the organosilicon modified epoxy resin is the same as that of the example 1.
(2) The component B comprises: 44 parts of polyamide curing agent, 26 parts of modified amine curing agent, 6 parts of curing accelerator, 19 parts of tertiary butyl acetate and 5 parts of n-butyl alcohol.
(3) The component C comprises the following components: 10 parts of isopropanol, 40 parts of tert-butyl acetate, 43 parts of butyl acetate and 7 parts of a coupling agent.
2. The preparation method of the organosilicon modified epoxy temperature-resistant anticorrosion primer comprises the following steps: as in example 1.
3. The construction process of the organosilicon modified epoxy heat-resistant anticorrosive primer comprises the following steps: as in example 1.
Comparative example 1
1. An epoxy temperature-resistant anticorrosion primer consists of A, B, C components, wherein the mass ratio of the raw materials of the components is as follows:
(1) The component A comprises the following components: 0.1 part of defoaming agent, 1 part of wetting dispersant, 13 parts of environment-friendly antirust pigment, 8 parts of functional filler, 16 parts of coloring pigment, 0.05 part of antioxidant, 0.1 part of ultraviolet absorber, 8 parts of first ester solvent, 45 parts of bisphenol A type epoxy resin, 5.75 parts of phenolic epoxy resin and 3 parts of reactive diluent.
Wherein, the environment-friendly antirust pigment in the component A is prepared by compounding zinc molybdate, modified zinc phosphate and polymeric antirust material according to the weight ratio of 8:5:1; the functional filler is compounded by mica powder, talcum powder, barium sulfate, alumina and fumed silica according to the weight ratio of 1:1.5:1:1.5:0.1; the first ester solvent is butyl acetate: the tertiary butyl acetate is compounded according to the weight ratio of 1:1.
(2) The component B comprises: 43 parts of polyamide curing agent, 28 parts of modified amine curing agent, 5 parts of curing accelerator, 19 parts of tertiary butyl acetate and 5 parts of n-butyl alcohol.
(3) The component C comprises the following components: 10 parts of isopropanol, 40 parts of tert-butyl acetate, 43 parts of butyl acetate and 7 parts of a coupling agent.
2. The preparation method of the organosilicon modified epoxy temperature-resistant anticorrosion primer comprises the following steps: as in example 1.
3. The construction process of the organosilicon modified epoxy heat-resistant anticorrosive primer comprises the following steps: as in example 1.
Comparative example 2
1. An epoxy temperature-resistant anticorrosion primer consists of A, B, C components, wherein the mass ratio of the raw materials of the components is as follows:
(1) The component A comprises the following components: 36 parts of organosilicon modified epoxy resin, 0.1 part of defoaming agent, 1 part of wetting dispersant, 13 parts of environment-friendly antirust pigment, 8 parts of functional filler, 16 parts of coloring pigment, 0.05 part of antioxidant, 0.1 part of ultraviolet absorber, 8 parts of first ester solvent, 14.75 parts of phenolic epoxy resin and 3 parts of reactive diluent.
Wherein, the environment-friendly antirust pigment in the component A is prepared by compounding zinc molybdate, modified zinc phosphate and polymeric antirust material according to the weight ratio of 8:5:1; the functional filler is compounded by mica powder, talcum powder, barium sulfate, alumina and fumed silica according to the weight ratio of 1:1.5:1:1.5:0.1; the first ester solvent is butyl acetate: the tertiary butyl acetate is compounded according to the weight ratio of 1:1. In the component A, the components and the preparation method of the organosilicon modified epoxy resin are the same as in the example 4.
(2) The component B comprises: 43 parts of polyamide curing agent, 28 parts of modified amine curing agent, 5 parts of curing accelerator, 19 parts of tertiary butyl acetate and 5 parts of n-butyl alcohol.
(3) The component C comprises the following components: 10 parts of isopropanol, 40 parts of tert-butyl acetate, 43 parts of butyl acetate and 7 parts of a coupling agent.
2. The preparation method of the organosilicon modified epoxy temperature-resistant anticorrosion primer comprises the following steps: as in example 1.
3. The construction process of the organosilicon modified epoxy heat-resistant anticorrosive primer comprises the following steps: as in example 1.
Comparative example 3
1. The organosilicon modified epoxy temperature-resistant anticorrosion primer consists of A, B, C components, wherein the mass ratio of the raw materials of the components is as follows:
(1) The component A comprises the following components: 26 parts of organosilicon modified epoxy resin, 0.1 part of defoaming agent, 1 part of wetting dispersant, 13 parts of environment-friendly antirust pigment, 8 parts of functional filler, 16 parts of coloring pigment, 0.05 part of antioxidant, 0.1 part of ultraviolet absorber, 8 parts of first ester solvent, 24.75 parts of bisphenol A epoxy resin and 3 parts of reactive diluent.
Wherein, the environment-friendly antirust pigment in the component A is prepared by compounding zinc molybdate, modified zinc phosphate and polymeric antirust material according to the weight ratio of 8:5:1; the functional filler is compounded by mica powder, talcum powder, barium sulfate, alumina and fumed silica according to the weight ratio of 1:1.5:1:1.5:0.1; the first ester solvent is butyl acetate: the tertiary butyl acetate is compounded according to the weight ratio of 1:1. In the component A, the components and the preparation method of the organosilicon modified epoxy resin are the same as in the example 4.
(2) The component B comprises: 43 parts of polyamide curing agent, 28 parts of modified amine curing agent, 5 parts of curing accelerator, 19 parts of tertiary butyl acetate and 5 parts of n-butyl alcohol.
(3) The component C comprises the following components: 10 parts of isopropanol, 40 parts of tert-butyl acetate, 43 parts of butyl acetate and 7 parts of a coupling agent.
2. The preparation method of the organosilicon modified epoxy temperature-resistant anticorrosion primer comprises the following steps: as in example 1.
3. The construction process of the organosilicon modified epoxy heat-resistant anticorrosive primer comprises the following steps: as in example 1.
The paint films of examples 1 to 4 and comparative examples 1 to 3 were subjected to a comprehensive performance test, the test criteria are shown in Table 1, and the test results are shown in tables 2 to 7. The comprehensive properties include paint film appearance, state in a container, surface drying time, pencil hardness, wet adhesion, dry adhesion, flexibility, impact resistance, high and low temperature impact resistance, heat resistance, moist heat resistance, salt spray corrosion and filiform corrosion.
Table 1 method for testing comprehensive Performance
| Test item | Test method |
| Appearance of paint film | Visual inspection |
| Status in a container | Visual inspection |
| Time of surface drying | GB/T1728-2020 |
| Hardness of pencil | GB/T 6739-2022 |
| Water resistance | GB/T 1735-2009 |
| Dry adhesion | GB/T 1720-2020 |
| Flexibility of the product | GB/T 1731-2020 |
| Impact-resistant | GB/T 1732-2020 |
| High and low temperature impact | GB/T 1731-2020 |
| Heat resistance | GB/T 1735-2009 |
| Moisture and heat resistance | GB/T 1740-2007 |
| Salt spray corrosion | GB/T 1771-2007 |
| Filiform corrosion | GB/T 26323-2010 |
TABLE 2 test data on appearance of paint films, states in containers, and open time of examples 1 to 4 and comparative examples 1 to 3
TABLE 3 Pencil hardness, dry adhesion and flexibility test data for examples 1-4 and comparative examples 1-3
| Test item | Hardness of pencil | Dry adhesion | Flexibility of the product |
| Index requirements | ≥HB | Grade 2 or less | ≤2mm |
| Example 1 | 3H | Level 2 | 1mm |
| Example 2 | 3H | Level 2 | 1mm |
| Example 3 | 3H | Level 2 | 1mm |
| Example 4 | 3H | Level 2 | 1mm |
| Comparative example 1 | 3H | Level 2 | 3mm |
| Comparative example 2 | 2H | Level 2 | 1mm |
| Comparative example 3 | 2H | Level 2 | 1mm |
Table 4 impact resistance test data of examples 1 to 4 and comparative examples 1 to 3
TABLE 5 Water resistance test data for examples 1 to 4 and comparative examples 1 to 3
TABLE 6 Corrosion test data for examples 1-4 and comparative examples 1-3
TABLE 7 Heat resistance test data for examples 1-4 and comparative examples 1-3
In examples 1 to 4, the component a contains three resins, namely, a silicone modified epoxy resin, a bisphenol a epoxy resin, and a novolac epoxy resin; and, the total of three resins is 50.75 parts. In comparison with the examples, comparative examples 1, 2 and 3 used only two resins of the examples, the total of which was also 50.75 parts. Specifically, comparative example 1 employed only bisphenol a type epoxy resin and phenolic epoxy resin, comparative example 2 employed only silicone modified epoxy resin and phenolic epoxy resin, and comparative example 3 employed only silicone modified epoxy resin and bisphenol a type epoxy resin.
From the data of tables 2 to 7, it can be derived that:
1) Also, the organic silicon modified epoxy temperature-resistant and corrosion-resistant primer paint films of examples 1 to 4 are soaked for 3 days at room temperature, compared with the organic silicon modified epoxy temperature-resistant and corrosion-resistant primer paint films of comparative examples 1 to 3, the organic silicon modified epoxy temperature-resistant and corrosion-resistant primer paint films of examples 1 to 4 are free from layering, foaming and peeling, slightly discolor, the pencil hardness is reduced by 2 levels, and the requirements of indexes of water resistance are met. From the results, the organosilicon modified epoxy temperature-resistant anticorrosion primer paint film prepared in the embodiment has excellent water resistance.
2) The minimum shaft rod diameter of examples 1-4 was significantly reduced compared to the minimum shaft rod diameter of comparative example 1 (3 mm), meeting the flexibility index requirements. From the results, the organosilicon modified epoxy temperature-resistant anticorrosion primer paint film prepared in the embodiment has excellent flexibility and good mechanical properties.
3) Compared with the paint film cracks on 50kg cm positive and recoil lower tinplate of comparative examples 1-2, the paint film cracks in 50kg cm positive and recoil lower of examples 1-4 are free from cracks and adhesion loss, and meet the index requirements of impact resistance. Compared with comparative examples 1-3, the paint films crack after 24 cycles at the temperature of minus 54 ℃ to 71 ℃, and the paint films of examples 1-4 have no cracks, no flaking, no adhesive force loss and no other failure phenomena after 24 cycles at the temperature of minus 54 ℃ to 71 ℃ and meet the index requirements of high and low temperature impact resistance. From the results, the organosilicon modified epoxy temperature-resistant anticorrosive primer paint film prepared in the embodiment has excellent impact resistance and still has excellent impact resistance under high and low temperature environments.
4) Compared with the comparative examples 1-3, the paint films are stripped after being placed for 100 hours at the temperature of 250 ℃, the paint films of the examples 1-4 are complete and uniform and have only slight light loss after being placed for 100 hours at the temperature of 250 ℃, and the heat resistance index requirements are met. Compared with the comparative examples 1-3, the comprehensive damage grade of the paint film is 3 grade or 4 grade after being placed in a temperature-adjusting humidity-adjusting box with the temperature of 47+/-1 ℃ and the humidity of 96+/-2 percent, the comprehensive damage grade of the paint film is 1 grade after being placed in a temperature-adjusting humidity-adjusting box with the temperature of 47+/-1 ℃ and the humidity of 96+/-2 percent, and the paint film meets the index requirement of the damp-heat resistance. From this, it is clear that the silicone modified epoxy heat-resistant anticorrosive primer film prepared in the examples has excellent heat resistance (250 ℃) and also has excellent wet heat resistance.
5) Compared with comparative examples 1-2, which failed in paint film after 2000 hours of salt spray corrosion, examples 1-4 did not failed in paint film after 2000 hours of salt spray corrosion, and did not appear in the position 3.2mm away from the scratch, which meets the index requirements of salt spray corrosion resistance. Compared with comparative examples 1-2, the paint films are foamed after filiform corrosion for 30d, examples 1-4 have no foaming, corrosion or other phenomena for reducing adhesion at the position, which is 3.2mm away from the scratch after the filiform corrosion for 30d, and meet the index requirement of filiform corrosion resistance. From the results, the organosilicon modified epoxy temperature-resistant anticorrosion primer paint film prepared in the embodiment has excellent corrosion resistance.
6) The pencil hardness and the dry adhesion of the examples 1-4 meet the index requirements, so that the organosilicon modified epoxy temperature-resistant anti-corrosion primer paint films prepared in the examples have high adhesion.
In summary, the invention combines the high temperature resistance of the organic silicon modified epoxy resin with the high adhesive force, high water resistance and thermal stability of the epoxy resin, and additionally compounds bisphenol A type epoxy resin and phenolic resin, and various nontoxic rust prevention Yan Diaoliao, auxiliary agents, VOC exemption solvents and the like are added in the epoxy resin, so that the prepared primer has good environmental protection, can be applied to 250 ℃ high temperature environment for a long time under the condition of low film thickness (17-22 mu m), and has excellent adhesive force, mechanical property, corrosion resistance, heat resistance, moisture and heat resistance, impact resistance, high and low temperature impact resistance, flexibility and water resistance.
Claims (10)
1. An organosilicon modified epoxy temperature-resistant anticorrosion primer is characterized in that: the organosilicon modified epoxy temperature-resistant anticorrosion primer comprises an A component, a B component and a C component;
the component A comprises organosilicon modified epoxy resin, bisphenol A epoxy resin, phenolic epoxy resin, reactive diluent, auxiliary agent, pigment, filler and first ester solvent;
The component B comprises polyamide curing agent, modified amine curing agent, curing accelerator, second ester solvent and alcohol solvent;
The component C comprises a second ester solvent, an alcohol solvent and a coupling agent;
the total weight of the component A is 100 parts:
the total weight of the component B is 100 parts:
the total weight of the component C is 100 parts:
77 to 87 parts by weight of a second ester solvent
8 To 13 parts by weight of an alcohol solvent
5-10 Parts by weight of a coupling agent;
Wherein the mass ratio of the component A to the component B to the component C is 7-9: 1:4 to 6, preferably 7 to 8:1:4 to 5.
2. The silicone modified epoxy temperature resistant corrosion resistant primer of claim 1, wherein:
the total weight of the component A is 100 parts:
the total weight of the component B is 100 parts:
the total weight of the component C is 100 parts:
80 to 85 parts by weight of a second ester solvent
9 To 11 parts by weight of an alcohol solvent
6-9 Parts of coupling agent.
3. The silicone modified epoxy temperature resistant corrosion resistant primer of claim 1, wherein: the organosilicon modified epoxy resin is prepared by the reaction of the following raw materials
4. The silicone modified epoxy temperature resistant corrosion resistant primer of claim 3, wherein:
The phenyl siloxane resin is one or two of vinyl end-capped methyl phenyl polysiloxane, polydimethylsiloxane, phenyl trimethyl polysiloxane and phenyl modified polysiloxane.
5. The silicone modified epoxy temperature resistant corrosion resistant primer as set forth in one of claims 3 or 4, wherein: the organosilicon modified epoxy resin is prepared by the following method:
S1: mixing epoxy resin and dimethylbenzene, and heating;
s2: adding phenyl siloxane resin and a color changing agent, and heating;
s3: dropwise adding a catalyst, and heating for reaction;
S4: cooling, adding butyl acetate, and reacting to obtain the organosilicon modified epoxy resin;
Preferably, the method comprises the steps of,
In the step S1, the temperature is 55-60 ℃; and/or
In the step S2, the temperature is 75-80 ℃; and/or
In the step S3, the temperature is 105-115 ℃ and the reaction time is 3-5 h; and/or
In the step S4, the temperature is 70-90 ℃ and the reaction time is 2-3 h.
6. The silicone modified epoxy temperature resistant corrosion resistant primer of claim 1, wherein: in the component A, the component A comprises a component A,
The filler is two or more of barium sulfate, modified talcum powder, aluminum oxide, diatomite, fumed silica, mica powder, organic bentonite and conductive graphite; and/or
The pigment comprises an environment-friendly antirust pigment and a coloring pigment; wherein, the environment-friendly antirust pigment is preferably two or more of zinc molybdate, zinc phosphate, modified zinc phosphate, composite zinc phosphate, high-purity zinc phosphate, aluminum tripolyphosphate and polymeric antirust materials; the coloring pigment is preferably titanium dioxide, iron oxide red or basf pigment; and/or
The auxiliary agent comprises a wetting dispersant, a defoaming agent, an ultraviolet absorber and an antioxidant; wherein the defoamer is preferably one or two of modified polysiloxane or polyether solutions; and/or
The first ester solvent is at least one of ethyl acetate, butyl acetate and tert-butyl acetate.
7. The silicone modified epoxy temperature resistant corrosion resistant primer of claim 6, wherein: the component A is prepared by the following method:
(1) Mixing the organosilicon modified epoxy resin, the first ester solvent, the wetting dispersant, the defoamer, the environment-friendly antirust pigment, the coloring pigment, the antioxidant, the ultraviolet absorber and the filler, and stirring to obtain mixed slurry;
(2) Grinding the mixed slurry to fineness less than or equal to 15 mu m, adding the bisphenol A epoxy resin, the phenolic epoxy resin and the reactive diluent, dispersing, uniformly mixing, and adjusting the content of non-volatile matters to 70-75% to obtain the component A.
8. The silicone modified epoxy temperature resistant corrosion resistant primer of claim 1, wherein: in the component B and the component C,
The second ester solvent is one or more of ethyl acetate, butyl acetate, tert-butyl acetate and propylene glycol methyl ether acetate; and/or
The alcohol solvent is one or two of n-butanol and isopropanol.
9. A method for preparing the organosilicon modified epoxy temperature-resistant anticorrosive primer according to any one of claims 1 to 8, which is characterized by comprising the following steps:
Mixing the components of the component A according to parts by weight to obtain the component A; mixing the components of the component B according to parts by weight to obtain the component B; mixing the components of the component C according to parts by weight to obtain the component C; and mixing the component A, the component B and the component C according to the dosage to prepare the organosilicon modified epoxy temperature-resistant anticorrosion primer.
10. Use of the silicone modified epoxy temperature-resistant corrosion-resistant primer according to any one of claims 1 to 8 or the silicone modified epoxy temperature-resistant corrosion-resistant primer prepared by the method according to claim 9 on the surface of a metal material; preferably, the dry film thickness of the organosilicon modified epoxy temperature-resistant anticorrosion primer on the surface of the metal material is 17-22 mu m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410264381.8A CN118146695A (en) | 2024-03-08 | 2024-03-08 | Organosilicon modified epoxy temperature-resistant anti-corrosion primer and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410264381.8A CN118146695A (en) | 2024-03-08 | 2024-03-08 | Organosilicon modified epoxy temperature-resistant anti-corrosion primer and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118146695A true CN118146695A (en) | 2024-06-07 |
Family
ID=91284645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410264381.8A Pending CN118146695A (en) | 2024-03-08 | 2024-03-08 | Organosilicon modified epoxy temperature-resistant anti-corrosion primer and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118146695A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118772742A (en) * | 2024-08-06 | 2024-10-15 | 浙江尤恩叉车股份有限公司 | Anti-rust water-based paint for AGV forklift and preparation method thereof |
| CN119060605A (en) * | 2024-08-28 | 2024-12-03 | 北京宇阳泽丽防水材料有限责任公司 | A kind of polysiloxane heat-resistant coating and preparation method thereof |
-
2024
- 2024-03-08 CN CN202410264381.8A patent/CN118146695A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118772742A (en) * | 2024-08-06 | 2024-10-15 | 浙江尤恩叉车股份有限公司 | Anti-rust water-based paint for AGV forklift and preparation method thereof |
| CN118772742B (en) * | 2024-08-06 | 2025-02-28 | 浙江尤恩叉车股份有限公司 | Anti-rust water-based paint for AGV forklift and preparation method thereof |
| CN119060605A (en) * | 2024-08-28 | 2024-12-03 | 北京宇阳泽丽防水材料有限责任公司 | A kind of polysiloxane heat-resistant coating and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN118146695A (en) | Organosilicon modified epoxy temperature-resistant anti-corrosion primer and preparation method and application thereof | |
| CN114456386B (en) | Reactive epoxy modified organic silicon resin and solvent-free high-temperature-resistant coating | |
| CN108624194A (en) | Solventless epoxy coating, the corrosion-inhibiting coating based on its preparation and its application | |
| PL191008B1 (en) | Epoxy-polysiloxane polymer composition | |
| CN103013337B (en) | A kind of metal protection coating and hot-dip galvanized metal material and hot-dip aluminizing zinc metallic substance | |
| CN101992295A (en) | Preparation method of coated aluminum powder | |
| CN111073507A (en) | Water-based chromium-free zinc-aluminum anticorrosive paint and preparation method thereof | |
| CN103725159A (en) | High-adaptive anticorrosive paint and preparation method thereof | |
| CN105176394B (en) | Coating material of organic-inorganic based on sol-gel technique and preparation method thereof | |
| EP2850140A1 (en) | Radiation curable composition, and method for preparing a hybrid sol-gel layer on a surface of a substrate using said composition | |
| CN102174285B (en) | Aqueous anti-corrosion and anti-frost paint for steel structure and preparation method thereof | |
| EP3802699B1 (en) | Particulate coating composition | |
| CN110628028B (en) | Preparation and application of organic silicon modified cardanol polyglycidyl ether resin | |
| CN117304775A (en) | A two-component water-based epoxy zinc-rich primer and its preparation method and application | |
| CN111218205A (en) | Water-based high-temperature-resistant coating for high-temperature coating and preparation method thereof | |
| CN118931357A (en) | A solvent-free acid-alkali resistant anticorrosive coating | |
| CN109161302A (en) | Solvent-free bi-component quick-drying anticorrosive paint and production method thereof | |
| CN108102434A (en) | A kind of nanometer of toughening inorganic zinc coating and preparation method thereof | |
| CN110982385B (en) | Special temperature-resistant coating for corrosion prevention in heat storage tank | |
| CN111592812A (en) | Water-based antirust primer and preparation method thereof | |
| EP0338116B1 (en) | Coating composition | |
| CN116355450A (en) | Low-surface-treatment polysiloxane coating and preparation method thereof | |
| KR20200049013A (en) | Anti-corrosion coating layer | |
| CN111893475A (en) | Antirust aluminum alloy chromium-free passivator and preparation method thereof | |
| CN118256123B (en) | Paint suitable for spraying on surface of automobile body and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |