CN117327441A - Electron beam cured high-resistance insulating paint and preparation method thereof - Google Patents
Electron beam cured high-resistance insulating paint and preparation method thereof Download PDFInfo
- Publication number
- CN117327441A CN117327441A CN202311193675.8A CN202311193675A CN117327441A CN 117327441 A CN117327441 A CN 117327441A CN 202311193675 A CN202311193675 A CN 202311193675A CN 117327441 A CN117327441 A CN 117327441A
- Authority
- CN
- China
- Prior art keywords
- electron beam
- insulating coating
- talcum powder
- boron nitride
- resistance insulating
- 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.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 60
- 239000003973 paint Substances 0.000 title claims abstract description 41
- 238000010894 electron beam technology Methods 0.000 title claims abstract description 37
- 238000000576 coating method Methods 0.000 claims abstract description 86
- 239000011248 coating agent Substances 0.000 claims abstract description 84
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical class O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 75
- -1 acrylic ester Chemical class 0.000 claims abstract description 70
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910052582 BN Inorganic materials 0.000 claims abstract description 53
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 47
- 239000004593 Epoxy Substances 0.000 claims abstract description 32
- 239000000178 monomer Substances 0.000 claims abstract description 31
- 229920002635 polyurethane Polymers 0.000 claims abstract description 30
- 239000004814 polyurethane Substances 0.000 claims abstract description 30
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 18
- 239000010452 phosphate Substances 0.000 claims abstract description 18
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 16
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 239000013530 defoamer Substances 0.000 claims description 16
- 239000004611 light stabiliser Substances 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 14
- 238000001291 vacuum drying Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 230000004048 modification Effects 0.000 claims description 11
- 238000012986 modification Methods 0.000 claims description 11
- 238000009210 therapy by ultrasound Methods 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 238000001723 curing Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 230000003301 hydrolyzing effect Effects 0.000 claims description 8
- 238000001227 electron beam curing Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 229920002554 vinyl polymer Polymers 0.000 claims description 5
- LEJBBGNFPAFPKQ-UHFFFAOYSA-N 2-(2-prop-2-enoyloxyethoxy)ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOC(=O)C=C LEJBBGNFPAFPKQ-UHFFFAOYSA-N 0.000 claims description 4
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 3
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 claims description 3
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- GNSFRPWPOGYVLO-UHFFFAOYSA-N 3-hydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCO GNSFRPWPOGYVLO-UHFFFAOYSA-N 0.000 claims description 2
- JHWGFJBTMHEZME-UHFFFAOYSA-N 4-prop-2-enoyloxybutyl prop-2-enoate Chemical compound C=CC(=O)OCCCCOC(=O)C=C JHWGFJBTMHEZME-UHFFFAOYSA-N 0.000 claims description 2
- FIHBHSQYSYVZQE-UHFFFAOYSA-N 6-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound C=CC(=O)OCCCCCCOC(=O)C=C FIHBHSQYSYVZQE-UHFFFAOYSA-N 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
- 238000002156 mixing Methods 0.000 description 17
- 239000000454 talc Substances 0.000 description 16
- 229910052623 talc Inorganic materials 0.000 description 16
- 235000012222 talc Nutrition 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 8
- 238000004132 cross linking Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000008595 infiltration Effects 0.000 description 6
- 238000001764 infiltration Methods 0.000 description 6
- 230000003628 erosive effect Effects 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 230000037303 wrinkles Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical class OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000033444 hydroxylation Effects 0.000 description 2
- 238000005805 hydroxylation reaction Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229920000891 common polymer Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- 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
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
The application relates to the field of insulating paint, and particularly discloses an electron beam cured high-resistance insulating paint and a preparation method thereof. The electron beam cured high-resistance insulating coating comprises the following components in parts by mass: 30-60 parts of epoxy modified polyurethane acrylic ester, 20-40 parts of active monomer, 0.1-1 part of phosphate, 3-8 parts of modified talcum powder, 2-5 parts of boron nitride and 1-5 parts of auxiliary agent; the modified talcum powder is hyperbranched polysiloxane grafted modified talcum powder; the preparation method comprises the following steps: according to the proportion, the epoxy modified polyurethane acrylic ester and the active monomer are uniformly mixed, and then the rest raw materials are added into the mixture, stirred, blended and ground to obtain the electron beam cured high-resistance insulating coating. The electron beam cured high-resistance insulating coating has the advantage of excellent high-temperature and high-humidity resistance.
Description
Technical Field
The application relates to the field of insulating paint, in particular to an electron beam cured high-resistance insulating paint and a preparation method thereof.
Background
The electron beam curing (Electron Beam Curing) technology is to bombard a prepolymer with low molecular weight in a system by using high-energy electron beams to randomly generate free radical active points, so that double bonds in the resin are polymerized, and the free radicals can be crosslinked or crosslinked with the resin. Compared with ultraviolet light curing, electron beam curing has the following advantages: the curing speed is faster; the electron beam has high energy and high penetrating power, can directly open acrylic ester to generate free radical to initiate polymerization, thus no initiator is needed, the storage stability of the paint is improved, and the color and smell brought by byproducts generated by the decomposition of the photoinitiator are reduced.
The insulating paint is one kind of paint with excellent electric insulating performance, and is one kind of insulating film or insulating integral based on high molecular polymer and cured under certain condition. Common polymer insulating paint mainly comprises polyimide insulating paint, polyurethane insulating paint, epoxy resin insulating paint and the like.
At present, there are various insulating coatings which can still maintain good dielectric properties and have good insulativity under high temperature conditions, but although the coatings can meet the requirement of insulating properties in a high temperature environment, the mechanical properties in a high temperature and high humidity environment are poor, and the service life is insufficient, so the coating needs to be improved.
Disclosure of Invention
In order to improve the service life of the insulating coating in a high-temperature high-humidity environment, the application provides an electron beam cured high-resistance insulating coating.
In a first aspect, the present application provides an electron beam cured high-resistance insulating coating, which adopts the following technical scheme: the electron beam cured high-resistance insulating paint comprises the following components in parts by mass:
30-60 parts of epoxy modified polyurethane acrylic ester,
20-40 parts of active monomer,
Phosphate ester 0.1-1 parts,
3-8 parts of modified talcum powder,
2-5 parts of boron nitride,
1-5 parts of an auxiliary agent;
the modified talcum powder is hyperbranched polysiloxane grafted modified talcum powder.
By adopting the technical scheme, the epoxy modified polyurethane acrylate has the advantages of excellent acid and alkali resistance, good electrical insulation performance, good shock resistance, ageing resistance and flexibility and strong adhesive force, and compared with polyurethane cool acrylic resin, the epoxy modified polyurethane acrylate has the advantages of high curing speed, high strength and good corrosion resistance, and can ensure the service life of the high-resistance insulating coating in a complex environment;
the talcum powder has insulativity, is inactive in chemical property and good in high temperature resistance, and has a certain function of blocking infrared rays; the boron nitride has high hardness, good chemical corrosion resistance, excellent thermal shock resistance, high-temperature stability and mechanical strength, and high resistivity; by selecting talcum powder and boron nitride as insulating fillers, the high-temperature resistance of the insulating coating is improved while the high-resistance and better insulating performance of the insulating coating are provided, so that the insulating coating still has better mechanical performance in a high-temperature environment; in addition, in the curing process of the insulating coating, lamellar talcum powder tends to be approximately parallel and layered, so that the liquid infiltration path is prolonged, the liquid infiltration in a high-humidity environment is reduced, and the service life of the insulating coating is prolonged;
by carrying out hyperbranched polysiloxane grafting modification on talcum powder, on one hand, the compatibility of the talcum powder and epoxy modified polyurethane acrylic ester and other organic matters is increased, so that the talcum powder is better and more uniform in lamination distribution in an insulating coating system, and further the stability of the service performance of the insulating coating in a high-temperature high-humidity environment is further improved; on the other hand, the hyperbranched polysiloxane can be chemically crosslinked with organic matters such as epoxy modified polyurethane acrylic ester, active monomers and the like, so that the crosslinking density of an organic crosslinked network structure is improved, and the improvement of the mechanical strength and adhesive force stability of the insulating coating is promoted; meanwhile, abundant and good heat-resistant siloxane bonds in the hyperbranched polysiloxane long chain can help to improve the heat stability of the organic crosslinking network structure, and the hydrophobic effect of the hyperbranched polysiloxane can help to reduce the penetration and erosion of liquid, so that the high temperature resistance and high humidity resistance of the insulating coating are improved, the stability of the service performance of the insulating coating in a high temperature and high humidity environment is further ensured, and the service life of the insulating coating is prolonged.
Preferably, the preparation method of the modified talcum powder comprises the following steps:
the organic siloxane and water are mixed according to the mass ratio of 1: (1.1-1.3), dropwise adding hydrochloric acid to adjust the pH to 1-3, pre-hydrolyzing for 10-20min, heating to 40-80 ℃, reacting for 5-10h, and vacuum drying to obtain hyperbranched polysiloxane;
adding hyperbranched polysiloxane into absolute ethyl alcohol, regulating pH to 10-12, adding talcum powder, performing ultrasonic dispersion, reacting for 2-6h at 40-80 ℃, filtering, washing and drying to obtain modified talcum powder.
By adopting the technical scheme, the organic siloxane is hydrolyzed under the catalysis of hydrochloric acid, copolycondensation reaction is carried out, and hyperbranched polysiloxane is formed by polymerization; the hyperbranched polysiloxane reacts with the silicon hydroxyl on the surface of the talcum powder and is grafted onto the talcum powder, so that the hyperbranched polysiloxane grafted talcum powder can be obtained, the dispersion uniformity of the talcum powder in an insulating coating system is improved, the hyperbranched polysiloxane can participate in the crosslinking curing process of the insulating coating, the mechanical strength and the high-temperature stability of the insulating coating are improved, the liquid erosion is reduced, and the high-temperature and high-humidity stability of the insulating coating is enhanced.
Preferably, the organosiloxane comprises a mass ratio of 1: (0.4-0.6) vinyl siloxane and epoxy siloxane.
By adopting the technical scheme, the crosslinking activity of the hyperbranched polysiloxane is improved, and the mechanical strength and adhesive force stability of the insulating coating are ensured.
Preferably, the mass ratio of the hyperbranched polysiloxane to the talcum powder is (3-7): 1.
By adopting the technical scheme, the hyperbranched polysiloxane is ensured to have higher grafting rate, the possibility of lower grafting rate caused by too little hyperbranched polysiloxane consumption is reduced, and meanwhile, the possibility of inhibiting the infrared shielding performance of talcum powder caused by too much hyperbranched polysiloxane consumption and causing raw material waste is reduced.
Preferably, the boron nitride is a hydroxylated surface modified boron nitride, and the surface modification operation comprises:
dispersing boron nitride in hydrochloric acid solution, heating at 80-100deg.C for 10-15min, filtering, and drying to obtain purified boron nitride; dispersing the purified boron nitride in concentrated nitric acid solution, carrying out ultrasonic treatment for 1-2h, stirring for 8-12h at 60-80 ℃, centrifuging, washing and drying to obtain the hydroxylated boron nitride.
By adopting the technical scheme, the reactivity of the boron nitride is improved, and the uniformity of the boron nitride in the insulating coating is promoted.
Preferably, the boron nitride is hexagonal boron nitride.
By adopting the technical scheme, the hexagonal boron nitride is of a hexagonal layer structure, can be mutually staggered with lamellar talcum powder to form a talcum powder-boron nitride phase doped laminated structure, is beneficial to further prolonging the liquid infiltration path, reducing liquid erosion, further improving the mechanical property and high temperature resistance of the insulating coating, and is beneficial to ensuring the stability of the service performance of the insulating coating in a high-temperature and high-humidity environment.
Preferably, the reactive monomer is selected from one or more of hydroxyethyl methacrylate, hydroxypropyl methacrylate, 1, 6-hexanediol diacrylate, 1, 4-butanediol diacrylate, diethylene glycol diacrylate and tripropylene glycol diacrylate.
By adopting the technical scheme, the active monomer is used as the oligomer active diluent to help adjust the viscosity of the insulating paint, and simultaneously the crosslinking density of the insulating paint can be adjusted by controlling the functionality of the added active monomer, so that the mechanical property of the insulating paint is improved.
Preferably, the auxiliary agent is selected from one or a combination of more of flatting agent, defoamer and light stabilizer.
Preferably, the application process of the high-resistance insulating paint comprises the following steps: and coating the high-resistance insulating coating on a substrate, and curing by adopting an electron beam curing process.
By adopting the technical scheme, the electron beam curing has the advantages of high curing speed, high crosslinking density and low VOC emission, and the insulating coating obtained by curing has better mechanical strength and service performance.
In a second aspect, the present application provides a method for preparing an electron beam cured high-resistance insulating coating, which adopts the following technical scheme:
the preparation method of the electron beam cured high-resistance insulating paint comprises the following steps:
according to the proportion, the epoxy modified polyurethane acrylic ester and the active monomer are uniformly mixed, and then the phosphate, the modified talcum powder, the boron nitride and the auxiliary agent with the formula amount are added into the mixture, and the mixture is stirred, blended and ground to obtain the electron beam cured high-resistance insulating coating.
By adopting the technical scheme, the electron beam cured high-resistance insulating paint with high resistance, high insulativity, excellent mechanical property and good high-temperature and high-humidity resistance is obtained.
In summary, the present application has the following beneficial effects:
1. according to the application, the epoxy modified polyurethane acrylate can ensure the service life of the high-resistance insulating coating in a complex environment, and the modified talcum powder and the boron nitride are selected as the insulating filler, so that the high-temperature and high-humidity resistance of the insulating coating is improved, the insulating coating still has better mechanical properties in a high-temperature environment, the application effect of the high-resistance insulating coating in the high-temperature and high-humidity environment is improved, and the application range of the high-resistance insulating coating is widened;
2. the grafting modification of hyperbranched polysiloxane increases the compatibility of talcum powder and epoxy modified polyurethane acrylate and other organic matters, is favorable for better and even lamination distribution of talcum powder in an insulating coating system, and lamellar talcum powder tends to be approximately parallel lamination arrangement, prolongs the liquid infiltration path and is favorable for reducing the liquid infiltration in a high-humidity environment; meanwhile, the hyperbranched polysiloxane can be chemically crosslinked with organic matters such as epoxy modified polyurethane acrylic ester, active monomers and the like, so that the crosslinking density of the organic crosslinked network structure is improved, the abundant and good-heat-resistance silicon-oxygen bonds in the long chain of the hyperbranched polysiloxane can help to improve the heat stability of the organic crosslinked network structure, the hydrophobic effect of the hyperbranched polysiloxane can help to reduce the penetration and erosion of liquid, and the high-temperature and high-humidity resistance of the insulating coating is improved;
3. the hexagonal boron nitride is preferably adopted, is of a hexagonal layer structure, can be staggered with lamellar talcum powder to form a stable talcum powder-boron nitride phase doped laminated structure, is beneficial to further prolonging a liquid infiltration path, reducing liquid erosion, further improving the mechanical property and high temperature resistance of the insulating coating, and is beneficial to ensuring the stability of the service performance of the insulating coating in a high-temperature and high-humidity environment;
4. the application preferably carries out hydroxylation surface modification on the boron nitride, which is favorable for improving the reactivity of the boron nitride, promoting the uniformity of the dispersion of the boron nitride in the insulating coating and leading the talcum powder-boron nitride laminated structure to be more stable.
Detailed Description
The present application is described in further detail below with reference to examples.
Preparation example
Preparation example 1
The preparation example discloses modified talcum powder, which is prepared by the following steps:
the preparation method of the modified talcum powder comprises the following steps:
uniformly mixing 1000g of gamma-methacryloxypropyl trimethoxysilane with 1200g of water, dropwise adding hydrochloric acid to adjust the pH to 2, pre-hydrolyzing for 15min, heating to 55 ℃, reacting for 8h, and vacuum drying at 40 ℃ to obtain hyperbranched polysiloxane;
adding 500g of hyperbranched polysiloxane into 1000g of absolute ethyl alcohol, dropwise adding sodium hydroxide to adjust the pH to 10, adding 100g of talcum powder into the mixture, carrying out ultrasonic treatment for 15min, reacting for 4h at 60 ℃, filtering, washing for 3 times, and carrying out vacuum drying at 80 ℃ to obtain the modified talcum powder.
Preparation example 2
The preparation example differs from preparation example 1 only in that the preparation method of the modified talc powder is as follows:
uniformly mixing 1000g of gamma-glycidoxypropyl trimethoxysilane with 1200g of water, dropwise adding hydrochloric acid to adjust the pH to 2, pre-hydrolyzing for 15min, heating to 55 ℃, reacting for 8h, and vacuum drying at 40 ℃ to obtain hyperbranched polysiloxane;
adding 300g of hyperbranched polysiloxane into 1000g of absolute ethyl alcohol, dropwise adding sodium hydroxide to adjust the pH to 10, adding 100g of talcum powder into the mixture, carrying out ultrasonic treatment for 15min, reacting for 4h at 60 ℃, filtering, washing for 3 times, and carrying out vacuum drying at 80 ℃ to obtain the modified talcum powder.
Preparation example 3
The preparation example differs from preparation example 1 only in that the preparation method of the modified talc powder is as follows:
714g of gamma-methacryloxypropyl trimethoxysilane, 286g of gamma-glycidoxypropyl trimethoxysilane and 1200g of water are uniformly mixed, hydrochloric acid is added dropwise to adjust the pH to 2, after prehydrolysis is carried out for 15min, the temperature is raised to 55 ℃, the reaction is carried out for 8h, and vacuum drying is carried out at 40 ℃ to obtain hyperbranched polysiloxane;
700g of hyperbranched polysiloxane is added into 1000g of absolute ethyl alcohol, sodium hydroxide is added dropwise to adjust the pH to 10, 100g of talcum powder is added into the mixture, the mixture is subjected to ultrasonic treatment for 15min, then the mixture is reacted for 4h at 60 ℃, filtered, washed 3 times with water and dried in vacuum at 80 ℃ to obtain the modified talcum powder.
Preparation example 4
This preparation differs from preparation 3 only in that the gamma-methacryloxypropyl trimethoxysilane was 666g and the gamma-glycidoxypropyl trimethoxysilane was 334g.
Preparation example 5
This preparation differs from preparation 3 only in that the gamma-methacryloxypropyl trimethoxysilane was 625g and the gamma-glycidoxypropyl trimethoxysilane was 375g.
Preparation example 6
The preparation example differs from preparation example 1 only in that the preparation method of the modified talc powder is as follows:
uniformly mixing 1000g of gamma-methacryloxypropyl trimethoxysilane with 1200g of water, dropwise adding hydrochloric acid to adjust the pH to 2, pre-hydrolyzing for 15min, heating to 55 ℃, reacting for 8h, and vacuum drying at 40 ℃ to obtain hyperbranched polysiloxane;
adding 300g of hyperbranched polysiloxane into 1000g of absolute ethyl alcohol, dropwise adding sodium hydroxide to adjust the pH to 10, adding 100g of talcum powder into the mixture, carrying out ultrasonic treatment for 15min, reacting for 4h at 60 ℃, filtering, washing for 3 times, and carrying out vacuum drying at 80 ℃ to obtain the modified talcum powder.
Preparation example 7
The preparation example differs from preparation example 1 only in that the preparation method of the modified talc powder is as follows:
uniformly mixing 1000g of gamma-methacryloxypropyl trimethoxysilane with 1200g of water, dropwise adding hydrochloric acid to adjust the pH to 2, pre-hydrolyzing for 15min, heating to 55 ℃, reacting for 8h, and vacuum drying at 40 ℃ to obtain hyperbranched polysiloxane;
700g of hyperbranched polysiloxane is added into 1000g of absolute ethyl alcohol, sodium hydroxide is added dropwise to adjust the pH to 10, 100g of talcum powder is added into the mixture, the mixture is subjected to ultrasonic treatment for 15min, then the mixture is reacted for 4h at 60 ℃, filtered, washed 3 times with water and dried in vacuum at 80 ℃ to obtain the modified talcum powder.
Preparation example 8
The preparation example differs from preparation example 1 only in that the preparation method of the modified talc powder is as follows:
uniformly mixing 1000g of gamma-methacryloxypropyl trimethoxysilane with 1200g of water, dropwise adding hydrochloric acid to adjust the pH to 2, pre-hydrolyzing for 15min, heating to 55 ℃, reacting for 8h, and vacuum drying at 40 ℃ to obtain hyperbranched polysiloxane;
200g of hyperbranched polysiloxane is added into 1000g of absolute ethyl alcohol, sodium hydroxide is added dropwise to adjust the pH to 10, 100g of talcum powder is added into the mixture, the mixture is subjected to ultrasonic treatment for 15min, then the mixture is reacted for 4h at 60 ℃, filtered, washed 3 times with water and dried in vacuum at 80 ℃ to obtain the modified talcum powder.
Preparation example 9
The preparation example differs from preparation example 1 only in that the preparation method of the modified talc powder is as follows:
uniformly mixing 1000g of gamma-methacryloxypropyl trimethoxysilane with 1200g of water, dropwise adding hydrochloric acid to adjust the pH to 2, pre-hydrolyzing for 15min, heating to 55 ℃, reacting for 8h, and vacuum drying at 40 ℃ to obtain hyperbranched polysiloxane;
adding 800g of hyperbranched polysiloxane into 1000g of absolute ethyl alcohol, dropwise adding sodium hydroxide to adjust the pH to 10, adding 100g of talcum powder into the mixture, carrying out ultrasonic treatment for 15min, reacting for 4h at 60 ℃, filtering, washing for 3 times, and carrying out vacuum drying at 80 ℃ to obtain the modified talcum powder.
Examples
Example 1
The embodiment discloses an electron beam cured high-resistance insulating coating, which comprises the following components in parts by mass: 500g of epoxy modified polyurethane acrylate, 300g of active monomer, 5g of phosphate, 50g of modified talcum powder, 35g of boron nitride, 10g of flatting agent, 10g of defoamer and 15g of light stabilizer.
In this example, the model of the epoxy modified urethane acrylate is WDS-8056; the reactive monomers were 200g of hydroxyethyl methacrylate and 100g of tripropylene glycol diacrylate; modified talc powder was prepared from preparation example 1; the boron nitride is hexagonal boron nitride; the model of the leveling agent is BYK333; the model of the defoamer is D141; the type of the light stabilizer is UV-3346.
The preparation method of the electron beam cured high-resistance insulating paint comprises the following steps:
mixing the epoxy modified polyurethane acrylic ester and the active monomer with the mass, and uniformly stirring; and adding the phosphate, modified talcum powder, boron nitride, flatting agent, defoamer and light stabilizer into the mixture, stirring, blending and grinding uniformly to obtain the high-resistance insulating coating.
Example 2
This example differs from example 1 only in that the electron beam cured high resistance insulating coating comprises the following components in parts by mass:
300g of epoxy modified polyurethane acrylate, 400g of active monomer, 1g of phosphate, 30g of modified talcum powder prepared in preparation example 1, 50g of boron nitride, 4g of flatting agent, 3g of defoamer and 3g of light stabilizer.
Example 3
This example differs from example 1 only in that the electron beam cured high resistance insulating coating comprises the following components in parts by mass:
600g of epoxy modified polyurethane acrylate, 200g of active monomer, 10g of phosphate, 80g of modified talcum powder prepared in preparation example 1, 20g of boron nitride, 18g of flatting agent, 12g of defoamer and 20g of light stabilizer.
Example 4
This example differs from example 1 only in that modified talc was prepared from preparation 2.
Example 5
This example differs from example 1 only in that modified talc was prepared from preparation 3.
Example 6
This example differs from example 1 only in that modified talc was prepared from preparation 4.
Example 7
This example differs from example 1 only in that modified talc was prepared from preparation 5.
Example 8
This example differs from example 1 only in that modified talc was prepared from preparation 6.
Example 9
This example differs from example 1 only in that modified talc was prepared from preparation 7.
Example 10
This example differs from example 1 only in that modified talc was prepared from preparation 8.
Example 11
This example differs from example 1 only in that modified talc was prepared from preparation 9.
Example 12
This example differs from example 1 only in that the boron nitride is subjected to a hydroxylated surface modification treatment.
The surface modification operation is as follows:
dispersing boron nitride in 3mol/L hydrochloric acid solution, heating at 80 ℃ for 15min, filtering, and drying at 40 ℃ to obtain purified boron nitride;
dispersing the purified boron nitride in concentrated nitric acid solution, carrying out ultrasonic treatment for 1h, stirring for 10h at 70 ℃, centrifuging, washing with water for three times, and drying at 80 ℃ to obtain hydroxylated boron nitride.
The preparation method of the electron beam cured high-resistance insulating paint comprises the following steps:
mixing 500g of epoxy modified polyurethane acrylic ester and 300g of active monomer, and uniformly stirring; 5g of phosphate, 50g of modified talcum powder prepared in preparation example 1, 35g of hydroxylated boron nitride, 10g of flatting agent, 10g of defoamer and 15g of light stabilizer are added into the mixture, stirred, blended and ground uniformly to obtain the high-resistance insulating coating.
Example 13
This example differs from example 1 only in that the boron nitride is cubic boron nitride.
Comparative example
Comparative example 1
The present comparative example differs from example 1 only in that the electron beam-cured high-resistance insulating paint includes the following components in parts by mass:
500g of polyurethane acrylic ester, 300g of reactive monomer, 5g of phosphate, 50g of modified talcum powder, 35g of boron nitride, 10g of flatting agent, 10g of defoamer and 15g of light stabilizer.
The preparation method of the electron beam cured high-resistance insulating paint comprises the following steps:
mixing polyurethane acrylic ester and active monomer with the above quality, and stirring uniformly; and adding the phosphate, the modified talcum powder, the boron nitride, the flatting agent, the defoamer and the light stabilizer in the formula amount, stirring, blending and grinding uniformly to obtain the high-resistance insulating coating.
Comparative example 2
The present comparative example differs from example 1 only in that the electron beam-cured high-resistance insulating paint includes the following components in parts by mass:
500g of epoxy modified polyurethane acrylate, 300g of active monomer, 5g of phosphate, 85g of modified talcum powder, 10g of flatting agent, 10g of defoamer and 15g of light stabilizer.
The preparation method of the electron beam cured high-resistance insulating paint comprises the following steps:
mixing the epoxy modified polyurethane acrylic ester and the active monomer with the mass, and uniformly stirring; and adding the phosphate, the modified talcum powder, the flatting agent, the defoamer and the light stabilizer in the formula amount, stirring, blending and grinding uniformly to obtain the high-resistance insulating coating.
Comparative example 3
The present comparative example differs from example 1 only in that the electron beam-cured high-resistance insulating paint includes the following components in parts by mass:
500g of epoxy modified polyurethane acrylate, 300g of reactive monomer, 5g of phosphate, 85g of boron nitride, 10g of flatting agent, 10g of defoamer and 15g of light stabilizer.
The preparation method of the electron beam cured high-resistance insulating paint comprises the following steps:
mixing the epoxy modified polyurethane acrylic ester and the active monomer with the mass, and uniformly stirring; and adding the phosphate, the boron nitride, the flatting agent, the defoamer and the light stabilizer into the mixture, stirring, blending and grinding uniformly to obtain the high-resistance insulating coating.
Comparative example 4
This comparative example differs from example 1 only in that modified talc was replaced with unmodified talc.
The electron beam cured high-resistance insulating coating comprises the following components in parts by mass: 500g of epoxy modified polyurethane acrylate, 300g of reactive monomer, 5g of phosphate, 50g of talcum powder, 35g of boron nitride, 10g of flatting agent, 10g of defoamer and 15g of light stabilizer.
The preparation method of the electron beam cured high-resistance insulating paint comprises the following steps:
mixing the epoxy modified polyurethane acrylic ester and the active monomer with the mass, and uniformly stirring; and adding the phosphate, talcum powder, boron nitride, flatting agent, defoamer and light stabilizer into the mixture, stirring, blending and grinding uniformly to obtain the high-resistance insulating coating.
Performance test
The high-resistance insulating paint prepared in each example and each comparative example is coated on a substrate, and is cured by an electron beam curing mode to obtain a paint film sample, and the following test is carried out:
test one: the sample substrate is a copper sheet with the thickness of 0.1cm multiplied by 0.1cm, and the coating thickness of the high-resistance insulating coating is 50 mu m; detecting volume resistivity at room temperature with reference to standard GB 1981-81;
and II, testing: the sample substrate is a 20cm multiplied by 20cm aluminum plate, and the coating thickness of the high-resistance insulating coating is 20 mu m; the adhesion of the insulating paint was tested with reference to standard GB/T9286-1998; soaking each sample in a water bath kettle at 85 ℃ for 30 minutes, taking out, cooling to room temperature, and detecting the adhesive force of the insulating coating again; the adhesion test results were rated against the rating standard in standard GB/T9286-1998;
and (3) testing: the sample substrate is a steel plate with the thickness of 10cm multiplied by 10cm, and the coating thickness of the high-resistance insulating paint is 20 mu m; the impact resistance of the insulating paint is tested by referring to the standard GB/T1732-1993; soaking each sample in a water bath kettle at 85 ℃ for 30 minutes, taking out, cooling to room temperature, and performing impact resistance test again; the test specimen coating was observed for cracks, wrinkles, and flaking, and if the coating was completely crack, wrinkle, and flaking was 0 grade, slight crack, wrinkle, but no flaking was 1 grade, crack, wrinkle, and slight flaking was 2 grade, and severe crack, wrinkle, and flaking was 3 grade.
And (4) testing: the sample substrate is a steel plate with the thickness of 50mm multiplied by 120mm, and the coating thickness of the high-resistance insulating paint is 20 mu m; the sample is placed for 10 days at 85 ℃ in an environment with 95% humidity, whether the sample coating is cracked and shed or not is observed, the total absence of the cracking and shed is 0 level, the slight cracking and shed is 1 level, the slight cracking and shed is 2 level, and the serious cracking and shed is 3 level.
The results are summarized in Table 1
TABLE 1
As can be seen by combining examples 1-3 and combining table 1, the insulating coating prepared by referring to the application has high resistance, strong adhesive force, better adhesive strength and mechanical property after being treated by high-temperature water bath, and good high-temperature and high-humidity resistance; the insulating paint prepared by the formula and the method disclosed by the application has good insulativity, has excellent service performance under high-temperature and high-humidity environment, can be suitable for complex environment, and is beneficial to expanding the application range of the insulating paint and prolonging the service life.
It can be seen from the combination of example 1 and comparative example 1 and the combination of table 1 that the epoxy modified polyurethane acrylate can improve the high temperature and high humidity resistance of the insulating coating, so that the insulating coating has better use effect.
It can be seen from the combination of example 1 and comparative examples 2 to 3 and the combination of table 1 that the selection of the compound of modified talc powder and boron nitride as the filler can help to promote the further improvement of the high temperature and high humidity resistance of the insulating coating.
It can be seen from the combination of example 1, comparative examples 4 to 6 and table 1 that the modification of talc by hyperbranched polysiloxane can improve the mechanical properties and high temperature and high humidity resistance stability of the insulating coating. This is probably because hyperbranched polysiloxane can improve compatibility of talcum powder and organic components such as epoxy modified polyurethane acrylate, promote uniform dispersion of talcum powder, and simultaneously hyperbranched polysiloxane can participate in the crosslinking process of insulating paint, improve cohesive force of the insulating paint, and promote thermal stability and water resistance of an organic crosslinked network structure.
It can be seen from the combination of examples 1 and 4-7 and the combination of table 1 that the hyperbranched polysiloxane prepared by compounding the vinyl siloxane monomer and the epoxy siloxane monomer is used for grafting modification of talcum powder, so that the mechanical property and the high-temperature and high-humidity stability of the insulating coating can be further improved. This is probably due to the fact that by compounding the vinyl siloxane monomer and the epoxy siloxane monomer in the mass ratio disclosed in the present application, the resultant hyperbranched polysiloxane can have appropriate contents of vinyl and epoxy groups at the same time, so that the hyperbranched polysiloxane has better reactivity.
It can be seen from the combination of examples 1, 8-11 and table 1 that selecting the ratio of hyperbranched polysiloxane to talc within the scope disclosed in the present application can reduce the possibility of insufficient high temperature and high humidity stability of the insulating coating due to lower grafting ratio of hyperbranched polysiloxane, and can reduce the waste of raw materials on the basis of ensuring stable service performance of the insulating coating.
It can be seen from the combination of example 1 and example 12 and the combination of table 1 that the improvement of various properties of the insulating material can be promoted by the hydroxylation modification of boron nitride, which is probably due to the better compatibility of the hydroxylated boron nitride with the organic matters such as epoxy modified urethane acrylate, active monomer and the like, and the better dispersion property is obtained.
As can be seen from the combination of example 1 and example 13 and the combination of table 1, the hexagonal boron nitride can further improve the high temperature and high humidity resistance of the insulating coating, which is probably due to the fact that the hexagonal boron nitride can be staggered with lamellar talcum powder to form a more stable talcum powder-boron nitride phase doped laminated structure, and the high temperature and high humidity resistance of the insulating coating is further improved.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.
Claims (10)
1. The electron beam cured high-resistance insulating paint is characterized by comprising the following components in parts by mass:
30-60 parts of epoxy modified polyurethane acrylic ester,
20-40 parts of active monomer,
Phosphate ester 0.1-1 parts,
3-8 parts of modified talcum powder,
2-5 parts of boron nitride,
1-5 parts of an auxiliary agent;
the modified talcum powder is hyperbranched polysiloxane grafted modified talcum powder.
2. The electron beam cured high resistance insulating coating of claim 1, wherein: the preparation method of the modified talcum powder comprises the following steps:
the organic siloxane and water are mixed according to the mass ratio of 1: (1.1-1.3), dropwise adding hydrochloric acid to adjust the pH to 1-3, pre-hydrolyzing for 10-20min, heating to 40-80 ℃, reacting for 5-10h, and vacuum drying to obtain hyperbranched polysiloxane;
adding hyperbranched polysiloxane into absolute ethyl alcohol, regulating pH to 10-12, adding talcum powder, performing ultrasonic dispersion, reacting for 2-6h at 40-80 ℃, filtering, washing and drying to obtain modified talcum powder.
3. The electron beam cured high resistance insulating coating according to claim 2, wherein: the organic siloxane comprises the following components in percentage by mass: (0.4-0.6) vinyl siloxane and epoxy siloxane.
4. The electron beam cured high resistance insulating coating according to claim 2, wherein: the mass ratio of the hyperbranched polysiloxane to the talcum powder is (3-7) 1.
5. The electron beam cured high resistance insulating coating of claim 1, wherein: the boron nitride is a hydroxylated surface modified boron nitride, and the surface modification operation comprises:
dispersing boron nitride in hydrochloric acid solution, heating at 80-100deg.C for 10-15min, filtering, and drying to obtain purified boron nitride;
dispersing the purified boron nitride in concentrated nitric acid solution, carrying out ultrasonic treatment for 1-2h, stirring for 8-12h at 60-80 ℃, centrifuging, washing and drying to obtain the hydroxylated boron nitride.
6. The electron beam cured high resistance insulating coating of claim 1, wherein: the boron nitride is hexagonal boron nitride.
7. The electron beam cured high resistance insulating coating of claim 1, wherein: the reactive monomer is selected from one or more of hydroxyethyl methacrylate, hydroxypropyl methacrylate, 1, 6-hexanediol diacrylate, 1, 4-butanediol diacrylate, diethylene glycol diacrylate and tripropylene glycol diacrylate.
8. The electron beam cured high resistance insulating coating of claim 1, wherein: the auxiliary agent is selected from one or a combination of more of flatting agent, defoamer and light stabilizer.
9. The electron beam cured high resistance insulating coating of claim 1, wherein: the application process of the high-resistance insulating paint comprises the following steps: and coating the high-resistance insulating coating on a substrate, and curing by adopting an electron beam curing process.
10. A method of preparing an electron beam cured high resistance insulating coating according to any one of claims 1 to 9, wherein: the method comprises the following steps:
according to the proportion, the epoxy modified polyurethane acrylic ester and the active monomer are uniformly mixed, and then the phosphate, the modified talcum powder, the boron nitride and the auxiliary agent with the formula amount are added into the mixture, and the mixture is stirred, blended and ground to obtain the electron beam cured high-resistance insulating coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311193675.8A CN117327441B (en) | 2023-09-15 | 2023-09-15 | Electron beam cured high-resistance insulating paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311193675.8A CN117327441B (en) | 2023-09-15 | 2023-09-15 | Electron beam cured high-resistance insulating paint and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117327441A true CN117327441A (en) | 2024-01-02 |
| CN117327441B CN117327441B (en) | 2024-05-03 |
Family
ID=89276380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311193675.8A Active CN117327441B (en) | 2023-09-15 | 2023-09-15 | Electron beam cured high-resistance insulating paint and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117327441B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0672736A2 (en) * | 1994-03-16 | 1995-09-20 | Bayer Ag | Coating compositions, process for their preparation and their use |
| JP2009091318A (en) * | 2007-10-10 | 2009-04-30 | Jgc Catalysts & Chemicals Ltd | Modified surface modifier, method for producing the same, method for surface-modifying powder with the modifier, and cosmetic containing the modified powder |
| JP2010030952A (en) * | 2008-07-29 | 2010-02-12 | Fuji Kasei Kk | Treated powder and cosmetic |
| CN106752954A (en) * | 2017-01-09 | 2017-05-31 | 广东鼎新高新科技股份有限公司 | CCB high sealing water-repellent paints |
| CN108311124A (en) * | 2018-03-08 | 2018-07-24 | 东华理工大学 | A kind of preparation method and application of hyperbranched polyorganosiloxane modified coal ash |
| CN109111592A (en) * | 2018-06-05 | 2019-01-01 | 中山易必固新材料科技有限公司 | High adhesion force high-weatherability foamed board and its manufacture craft based on electronic beam curing |
| CN111333991A (en) * | 2020-04-09 | 2020-06-26 | 安徽松泰包装材料有限公司 | High-temperature-resistant composite packaging film and preparation method thereof |
| CN114232381A (en) * | 2021-12-22 | 2022-03-25 | 东莞市伟邦新材料科技有限公司 | Anti-sticking agent for gum dipping process and preparation method thereof |
| CN114806036A (en) * | 2021-06-03 | 2022-07-29 | 帝高力装饰材料（江苏）有限公司 | PVC floor and preparation method thereof |
| US20230126942A1 (en) * | 2021-10-26 | 2023-04-27 | Harbin Engineering University | Polypyrrole-graphene/polyurethane antifouling coating as well as preparation method and application thereof |
-
2023
- 2023-09-15 CN CN202311193675.8A patent/CN117327441B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0672736A2 (en) * | 1994-03-16 | 1995-09-20 | Bayer Ag | Coating compositions, process for their preparation and their use |
| JP2009091318A (en) * | 2007-10-10 | 2009-04-30 | Jgc Catalysts & Chemicals Ltd | Modified surface modifier, method for producing the same, method for surface-modifying powder with the modifier, and cosmetic containing the modified powder |
| JP2010030952A (en) * | 2008-07-29 | 2010-02-12 | Fuji Kasei Kk | Treated powder and cosmetic |
| CN106752954A (en) * | 2017-01-09 | 2017-05-31 | 广东鼎新高新科技股份有限公司 | CCB high sealing water-repellent paints |
| CN108311124A (en) * | 2018-03-08 | 2018-07-24 | 东华理工大学 | A kind of preparation method and application of hyperbranched polyorganosiloxane modified coal ash |
| CN109111592A (en) * | 2018-06-05 | 2019-01-01 | 中山易必固新材料科技有限公司 | High adhesion force high-weatherability foamed board and its manufacture craft based on electronic beam curing |
| CN111333991A (en) * | 2020-04-09 | 2020-06-26 | 安徽松泰包装材料有限公司 | High-temperature-resistant composite packaging film and preparation method thereof |
| CN114806036A (en) * | 2021-06-03 | 2022-07-29 | 帝高力装饰材料（江苏）有限公司 | PVC floor and preparation method thereof |
| US20230126942A1 (en) * | 2021-10-26 | 2023-04-27 | Harbin Engineering University | Polypyrrole-graphene/polyurethane antifouling coating as well as preparation method and application thereof |
| CN114232381A (en) * | 2021-12-22 | 2022-03-25 | 东莞市伟邦新材料科技有限公司 | Anti-sticking agent for gum dipping process and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| ANNA KALTENEGGER-URAY ET.AL: "Physical forming and crosslinking of polyethylene with modified talcum", POLYMERS, 9 September 2019 (2019-09-09), pages 1 - 15 * |
| 孟鑫等: "改性滑石粉协同磷酸酯钠盐调控制备高刚、耐热聚丙烯", 塑料助剂, no. 1, 31 December 2018 (2018-12-31), pages 34 - 38 * |
| 杨华明等: "搅拌磨机械化学改性机理的研究", 有色金属, vol. 52, no. 3, 31 August 2000 (2000-08-31), pages 33 - 36 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117327441B (en) | 2024-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108329438B (en) | High-acid-resistance water-based epoxy dispersion and preparation method thereof | |
| CN105462468A (en) | Undercoat used for base material with copper film, base material with copper film, manufacturing method for base material with copper film, and conductive film | |
| CN110885397A (en) | Organic silicon modified acrylic resin and preparation method thereof | |
| CN116814153B (en) | Organic silicon marine antifouling paint with hydrogen bond complexation effect and preparation method thereof | |
| CN112940203A (en) | Organosilicon modified acrylic acid secondary dispersion and preparation method thereof | |
| KR20080078827A (en) | Aqueous coating composition, organic/inorganic composite coating film and method for producing same | |
| CN110003383B (en) | Silicon-titanium hybrid acrylate polymer and dual-curing coating prepared from same | |
| CN109735203B (en) | Semi-closed cage-shaped trifunctional epoxy ether group POSS (polyhedral oligomeric silsesquioxane) composite material, paint and preparation method | |
| CN114874699A (en) | Bionic modified organic silicon marine antifouling paint and preparation method thereof | |
| CN117327441B (en) | Electron beam cured high-resistance insulating paint and preparation method thereof | |
| CN110862576B (en) | Modified boron nitride particles and preparation method and application thereof | |
| CN108997882B (en) | Water-based acrylic resin antistatic coating and preparation method thereof | |
| CN113736323B (en) | White photovoltaic backboard coating composition for EVA and preparation method thereof | |
| CN114574062A (en) | Preparation method of modified fluorine-containing polyacrylate coating | |
| JPH0522743B2 (en) | ||
| CN112920677A (en) | Zinc oxide powder anticorrosive paint | |
| KR20100081634A (en) | Insulative coatiing composition for non-oriented electric steel sheet and manufacturing method thereof | |
| JP2001114898A (en) | Polysiloxane composite polymer particle, method for producing the particle and aqueous coating material composition using the particle | |
| CN116496694B (en) | Supermolecular modified organic silicon marine antifouling paint and preparation method thereof | |
| CN115011198B (en) | Preparation method of hybrid fluorocarbon latex coating with synergistic performance | |
| CN117510710B (en) | Self-crosslinking organosilicon hybridized acrylic acid dispersoid, preparation method thereof and coating | |
| Wu et al. | Synthesis, characterization and corrosion resistance properties of Ormosil-modified polyurethane (PU/Ormosil) composites | |
| JP7360249B2 (en) | Polymer-coated inorganic filler, and resin compositions containing it, dry films, cured products, electronic components | |
| JP2000063455A (en) | Polysiloxane composite polymer particle and its preparation | |
| JPH0653770B2 (en) | Curable resin composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |