CN118931387B - A polysiloxane-based thermal insulation composition, coating and preparation method thereof suitable for metal substrates - Google Patents
A polysiloxane-based thermal insulation composition, coating and preparation method thereof suitable for metal substrates Download PDFInfo
- Publication number
- CN118931387B CN118931387B CN202411280125.4A CN202411280125A CN118931387B CN 118931387 B CN118931387 B CN 118931387B CN 202411280125 A CN202411280125 A CN 202411280125A CN 118931387 B CN118931387 B CN 118931387B
- Authority
- CN
- China
- Prior art keywords
- polysiloxane
- maleic acid
- modified polysiloxane
- composition
- styrene
- 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.)
- Active
Links
- -1 polysiloxane Polymers 0.000 title claims abstract description 134
- 229920001296 polysiloxane Polymers 0.000 title claims abstract description 132
- 238000000576 coating method Methods 0.000 title claims abstract description 61
- 239000000203 mixture Substances 0.000 title claims abstract description 58
- 239000011248 coating agent Substances 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 title claims abstract description 24
- 239000000758 substrate Substances 0.000 title claims abstract description 18
- 238000009413 insulation Methods 0.000 title claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 40
- 239000011347 resin Substances 0.000 claims abstract description 40
- 239000002904 solvent Substances 0.000 claims abstract description 15
- 229920001577 copolymer Polymers 0.000 claims description 57
- 239000000945 filler Substances 0.000 claims description 42
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 35
- 238000002156 mixing Methods 0.000 claims description 27
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 22
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 22
- 239000011976 maleic acid Substances 0.000 claims description 22
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 22
- 239000003822 epoxy resin Substances 0.000 claims description 20
- 229920000647 polyepoxide Polymers 0.000 claims description 20
- 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 17
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 14
- AZIQALWHRUQPHV-UHFFFAOYSA-N prop-2-eneperoxoic acid Chemical compound OOC(=O)C=C AZIQALWHRUQPHV-UHFFFAOYSA-N 0.000 claims description 12
- 239000003999 initiator Substances 0.000 claims description 11
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 150000003440 styrenes Chemical class 0.000 claims description 7
- 239000010456 wollastonite Substances 0.000 claims description 7
- 229910052882 wollastonite Inorganic materials 0.000 claims description 7
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- DTCCVIYSGXONHU-CJHDCQNGSA-N (z)-2-(2-phenylethenyl)but-2-enedioic acid Chemical compound OC(=O)\C=C(C(O)=O)\C=CC1=CC=CC=C1 DTCCVIYSGXONHU-CJHDCQNGSA-N 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 230000003712 anti-aging effect Effects 0.000 abstract 1
- 239000007769 metal material Substances 0.000 abstract 1
- 239000004593 Epoxy Substances 0.000 description 39
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 28
- 230000005856 abnormality Effects 0.000 description 27
- 238000006243 chemical reaction Methods 0.000 description 20
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000010298 pulverizing process Methods 0.000 description 14
- 238000005336 cracking Methods 0.000 description 13
- 230000032683 aging Effects 0.000 description 12
- 238000005187 foaming Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 9
- FUGYGGDSWSUORM-UHFFFAOYSA-N 4-hydroxystyrene Chemical compound OC1=CC=C(C=C)C=C1 FUGYGGDSWSUORM-UHFFFAOYSA-N 0.000 description 7
- 239000008367 deionised water Substances 0.000 description 7
- 229910021641 deionized water Inorganic materials 0.000 description 7
- 239000006087 Silane Coupling Agent Substances 0.000 description 6
- 239000000543 intermediate Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 238000011056 performance test Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- JAMNSIXSLVPNLC-UHFFFAOYSA-N (4-ethenylphenyl) acetate Chemical compound CC(=O)OC1=CC=C(C=C)C=C1 JAMNSIXSLVPNLC-UHFFFAOYSA-N 0.000 description 3
- 239000004342 Benzoyl peroxide Substances 0.000 description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 3
- 239000004965 Silica aerogel Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910018557 Si O Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- XMSXQFUHVRWGNA-UHFFFAOYSA-N Decamethylcyclopentasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 XMSXQFUHVRWGNA-UHFFFAOYSA-N 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- HTDJPCNNEPUOOQ-UHFFFAOYSA-N hexamethylcyclotrisiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O1 HTDJPCNNEPUOOQ-UHFFFAOYSA-N 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000004901 spalling Methods 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
- C09D187/00—Coating compositions based on unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
Abstract
本发明属于涂料领域，具体涉及一种适用于金属基材的基于聚硅氧烷的保温组合物、涂层及其制备方法。本发明提供的涂料添加使用环氧改性聚硅氧烷树脂，使得制备的组合物以及用组合物制备的涂层具有较好的保温绝热性能、抗老化性能、耐温、耐溶剂等性能，本发明提供的组合物可以应用在金属材料表面，可以在飞机、船舶设备上，具有较好的应用前景。The present invention belongs to the field of coatings, and specifically relates to a polysiloxane-based thermal insulation composition, coating and preparation method thereof suitable for metal substrates. The coating provided by the present invention is added with epoxy-modified polysiloxane resin, so that the prepared composition and the coating prepared by the composition have good thermal insulation performance, anti-aging performance, temperature resistance, solvent resistance and other properties. The composition provided by the present invention can be applied to the surface of metal materials, and can be used in aircraft and ship equipment, and has good application prospects.
Description
Technical Field
The invention belongs to the field of coatings, and particularly relates to a polysiloxane-based heat-insulating composition suitable for a metal substrate, a coating and a preparation method thereof.
Background
The main types of the existing coating on the metal surfaces of airplanes, ships and the like comprise chlorinated rubber paint, epoxy paint, alkyd paint and polyurethane paint, and the main types of the existing coating have some non-negligible disadvantages such as poor durability, solvent resistance, environmental protection and the like. Besides good solvent resistance and environmental protection, the polysiloxane coating also has the performances of corrosion resistance, drag reduction, easy cleaning, aging resistance and the like. However, the polysiloxane coating has limited application in the field of coating of aircrafts and ships because of insufficient durability and stability under special environments, especially high-temperature environments.
In addition, the conventional coating on the surface of the metal such as an airplane and a ship has a problem that the heat insulation performance is not excellent enough. Compatibility between the old and new coatings may also be a problem when the old coating is upgraded or repaired, and it is desirable to ensure seamless integration of the new coating with the existing system. These have placed higher demands on the coating of metal surfaces for aircraft, ships, etc.
CN114350256B provides a high temperature resistant high reflectivity coating component and preparation method, and coating and construction method thereof, which uses epoxy modified polysiloxane resin as main component and high reflection coating powder as main component to prepare coating with better high temperature resistant performance, but although the introduction of siloxane can improve toughness of coating to a certain extent, the characteristic of epoxy resin determines that the epoxy resin still has a certain brittleness problem, especially under low temperature or high load condition, and although polysiloxane can improve certain weather resistance, the epoxy resin can be aged rapidly under severe environmental conditions (such as strong ultraviolet or extreme temperature) such as high altitude, ocean, etc.
Disclosure of Invention
The invention provides a polysiloxane-based heat-insulating composition, a polysiloxane-based heat-insulating coating and a preparation method thereof, which are suitable for a metal substrate, and solve the problem that the existing composition for the metal surface is not excellent enough in high temperature resistance, mechanical property, heat-insulating property, ageing resistance and the like by preparing epoxy modified polysiloxane resin with a specific structure and polysiloxane modified filler, and mixing the epoxy modified polysiloxane resin with the polysiloxane modified filler in a certain proportion for preparing the composition.
In a first aspect, a polysiloxane-based insulating composition suitable for use in metal substrates is provided comprising an epoxy modified polysiloxane resin, a filler and a solvent, wherein the modified polysiloxane is present in an amount of 40 to 60wt% based on the total weight of the composition.
Further, the content of the filler is 20-40 wt% of the total weight of the composition, and the content of the solvent is 10-20 wt% of the total weight of the composition.
Further, the filler is a polysiloxane modified filler, and the polysiloxane is a styrene-maleic acid copolymer modified polysiloxane.
Furthermore, the solvent is at least one of water and ethanol, and the two solvents have better environmental protection property and can reduce the pollution to the environment.
Furthermore, the epoxy modified polysiloxane resin contains benzene rings and carboxyl branched chains and has a comb-shaped structure, and also contains polysiloxane chain segments;
The benzene ring can absorb ultraviolet rays, reduce the damage of the resin by the ultraviolet rays, improve the ageing resistance of the epoxy modified polysiloxane resin, ensure that the epoxy modified polysiloxane resin has higher adhesion even on the surface of a smoother metal substrate due to the existence of a hydrophobic structure and the existence of carboxyl groups, further strengthen the ageing resistance of the epoxy modified polysiloxane resin due to the good heat-resistant oxidization resistance of a polysiloxane chain segment, improve the solvent resistance of the epoxy modified polysiloxane resin due to the existence of epoxy groups, and further improve the compatibility due to the existence of carboxyl branched chains, reduce the phase separation problem of the coating, ensure that the coating is more uniform and stable and is easy to repair without interface problems.
In a second aspect, the present invention provides a method of preparing a polysiloxane-based insulating composition suitable for use in a metal substrate, comprising:
and uniformly mixing the epoxy modified polysiloxane resin, the filler and the solvent to obtain the epoxy modified polysiloxane resin.
Further, the epoxy modified polysiloxane resin is obtained by reacting a derivative of styrene containing hydroxyl groups, maleic acid, hydroxy acrylate, silica sol, epoxy resin and tripropylene glycol diacrylate.
Further, the preparation method of the epoxy modified polysiloxane comprises the following steps:
Step1, mixing a derivative of hydroxyl-containing styrene, maleic acid and hydroxy acrylate, adding an initiator to perform polymerization reaction to obtain a hydroxyl-containing styrene-maleic acid copolymer, and performing polymerization reaction on the derivative of hydroxyl-containing styrene, maleic acid and hydroxy acrylate in the presence of the initiator to obtain a styrene-maleic acid copolymer, wherein a large amount of hydroxyl groups are introduced into the prepared styrene-maleic acid copolymer through the step;
Step 2, uniformly mixing an organosilicon intermediate with silica sol, standing, adding the styrene-maleic acid copolymer containing hydroxyl groups obtained in the step 1 for reaction to obtain styrene-maleic acid copolymer modified polysiloxane, wherein the introduced hydroxyl groups are subjected to crosslinking reaction with high-activity silica hydroxyl groups on the silica sol to introduce a styrene-maleic acid polymer into a polysiloxane polymer chain segment;
And step 3, adding epoxy resin and tripropylene glycol diacrylate into the styrene-maleic acid copolymer modified polysiloxane obtained in the step 2, and heating for reaction under the protection of nitrogen to obtain the epoxy modified polysiloxane resin.
Further, the derivative of the styrene containing the hydroxyl group in the step 1 is at least one selected from the group consisting of p-hydroxystyrene, 4-acetoxystyrene and 4-t-butoxyacyloxystyrene, and the substances are selected so as to introduce the hydroxyl group.
Further, the hydroxy acrylate in the step 1 is hydroxyethyl acrylate or hydroxypropyl acrylate, and the substances are selected so as to introduce hydroxy groups.
Further, the organosilicon intermediate in the step 2 is at least one selected from a dimethylcyclosiloxane mixed ring (DMC), hexamethylcyclotrisiloxane (D3), octamethyl cyclotetrasiloxane (D4) and decamethyl cyclopentasiloxane (D5).
Further, the molar ratio of the derivative of styrene containing hydroxyl groups, maleic acid and hydroxy acrylate in step 1 is (1-3): 1-2): 1.
Further, the temperature of the reaction in the step 1 is 80-90 ℃ and the time is 1-3h.
Further, the mass ratio of the organic silicon to the silica sol in the step 2 is 5 (2-6).
Further, the standing time in the step 2 is 40-60 ℃ and the temperature is 0.5-1h, and the standing time is not too long, so that the silica sol can be gel to a larger extent, and the subsequent mixing and reaction are not facilitated.
Further, the mass ratio of the hydroxyl-containing styrene-maleic acid copolymer to the silicone intermediate added in step 2 is (1-3): 1.
Further, the temperature of the reaction in the step 2 is 70-85 ℃ and the time is 1.5-2.5h.
Further, the mass ratio of the styrene-maleic acid copolymer modified polysiloxane, the epoxy resin and the tripropylene glycol diacrylate added in the step 3 is (5-7): 1:1.
Further, the temperature of the heating reaction in the step 3 is 70-90 ℃ and the time is 1.5-2.5h.
Further, the initiator in the step 1 is at least one of azobisisobutyronitrile and benzoyl peroxide.
Further, the addition amount of the initiator in the step 1 is 4-8% of the total mass of the styrene derivative, the maleic acid and the hydroxyl acrylate, the addition amount of the initiator is not less than 4%, when the addition amount of the initiator is small, the polymerization rate is low, but the molecular weight of the polymer is high, and finally the molecular weight of the prepared epoxy modified polysiloxane resin is high, so that the viscosity is low.
Further, the polysiloxane modified filler is obtained by modifying the surface of the filler by polysiloxane.
Further, the preparation method of the polysiloxane modified filler comprises the following steps:
Step one, preparing polysiloxane;
And step two, according to the mass ratio of (0.5-2) to (2.5-4) of the filler to (15-30) of the silane coupling agent to the polysiloxane to water, sequentially adding the silane coupling agent, the polysiloxane and the water into the filler, and heating to 50-80 ℃ to react for 1-3 hours to obtain the polysiloxane modified filler.
The silane coupling agent can be crosslinked with organic substances and inorganic substances at the same time, after the silane coupling agent is added, active groups are contained on the filler, the combination with polysiloxane is tighter, the structural stability of the filler is improved, the obtained filler is not easy to peel off from the polysiloxane under stronger impact, in addition, the crosslinking reaction between the silane coupling agent and the filler and the polysiloxane is beneficial to improving mechanical properties such as toughness and the like of the filler, the coating of the polysiloxane on the surface of the filler is beneficial to the compatibility and wettability of the filler and epoxy modified polysiloxane resin with the epoxy modified polysiloxane resin, the mixing is beneficial to, and the adhesive force of the prepared coating on a metal substrate can be improved.
Furthermore, the filler is at least one selected from wollastonite, mica powder and ceramic particles, has good temperature resistance, and can be better suitable for severe environments such as high altitude, deep sea and the like.
Further, the polysiloxane styrene-maleic acid copolymer modified polysiloxane in the first step is prepared by the following steps:
step 1, mixing a derivative of styrene containing hydroxyl, maleic acid and hydroxy acrylate, and then adding an initiator to perform polymerization reaction to obtain a styrene-maleic acid copolymer containing hydroxyl;
And 2, uniformly mixing the organosilicon intermediate with the silica sol, standing, and adding the hydroxyl-containing styrene-maleic acid copolymer obtained in the step 1 for reaction to obtain the styrene-maleic acid copolymer modified polysiloxane.
Still further, the molar ratio of the derivative of hydroxyl-containing styrene, maleic acid and hydroxy acrylate in step 1 is (1-3): 1-2): 1.
Still further, the reaction in step 1 is carried out at a temperature of 80-90℃for a period of 1-3 hours.
Further, the mass ratio of the organic silicon to the silica sol in the step 2 is 5 (2-6).
Still further, the time of the standing in the step2 is 40-60 ℃ and the temperature is 0.5-1h.
Still further, the mass ratio of the hydroxyl group-containing styrene-maleic acid copolymer to the silicone intermediate added in step 2 is (1-3): 1.
Still further, the reaction in step 2 is carried out at a temperature of 70-85℃for a period of 1.5-2.5 hours.
Further, the initiator in the step 1 is at least one of azobisisobutyronitrile and benzoyl peroxide.
Further, the initiator in step 1 is added in an amount of 4 to 8% by mass of the total mass of the styrene derivative, maleic acid and hydroxy acrylate.
In a third aspect, the present invention provides a coating prepared from the composition described above.
In a fourth aspect, the invention provides a method for preparing a coating, comprising the steps of coating the composition on the surface of a metal substrate, and drying for more than 1 week at room temperature.
In a fifth aspect, the present invention provides the use of the above composition in aircraft and marine equipment.
Compared with the prior art, the invention has the beneficial effects that:
The invention provides a polysiloxane-based heat-insulating composition suitable for a metal substrate, and the added epoxy modified polysiloxane resin contains polysiloxane chain segments, epoxy groups and benzene rings, so that the heat-insulating composition has better ageing resistance, corrosion resistance, weather resistance and other properties, and the prepared composition has better high-temperature resistance, ageing resistance, corrosion resistance, solvent resistance and other properties;
The epoxy modified polysiloxane resin contains hydrophilic groups and hydrophobic groups, so that the epoxy modified polysiloxane resin has good compatibility and wettability in both organic and aqueous systems, can greatly reduce the mixing time, can effectively reduce the compatibility problem between new and old coatings during repairing the old coatings, and has high adhesive force on metal substrates;
in addition, as the silica aerogel is introduced into the epoxy modified polysiloxane resin through the crosslinking reaction between the silica sol, the organic silicon and the hydroxyl-containing styrene-maleic acid copolymer, the silica aerogel can be toughened, and the network structure formed by crosslinking and the rich pore structure of the silica aerogel enable the composition to have better heat preservation and insulation properties on the basis of improving the stability of the structure;
The Si-O bond is introduced, and the variation range of the bond energy and the bond angle of the Si-O bond is large, so that the prepared composition has excellent solvent resistance, high temperature resistance and low temperature resistance, can better resist the impact of high altitude and underwater severe environments on a coating prepared by using the composition, and is further beneficial to prolonging the service life of the prepared coating;
the preparation method of the composition provided by the invention is simple and easy to operate, is convenient to apply, and has a good application prospect.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The manufacturers of some of the reagents used in the examples and comparative examples of the present invention are shown in the following table, and the other reagents not provided for the manufacturers are all common chemical reagents.
| Sequence number | Reagent(s) | Manufacturer' s |
| 1 | Silane coupling agent | Nanjing dawn chemical industry group |
| 2 | Organosilicon intermediates | Shandong the Eastern Mountain organosilicon materials Co.Ltd |
| 3 | Silica sol | Zhejiang Yuda chemical Co., ltd |
Example 1
1. Preparation of epoxy modified polysiloxanes
Step 1, mixing p-hydroxystyrene, maleic acid and hydroxyethyl acrylate in a molar ratio of 2:1:1, adding azodiisobutyronitrile accounting for 4% of the total mass of the p-hydroxystyrene, the maleic acid and the hydroxyethyl acrylate, and reacting for 2 hours at 80 ℃ to obtain a styrene-maleic acid copolymer containing hydroxyl;
Step 2, uniformly mixing DMC and silica sol according to a mass ratio of 5:2, standing for 0.5h at a temperature of 50 ℃, adding the hydroxyl-containing styrene-maleic acid copolymer obtained in the step 1 into DMC according to a mass ratio of 2:1, and reacting for 2h at a temperature of 75 ℃ to obtain styrene-maleic acid copolymer modified polysiloxane;
and 3, adding epoxy resin and tripropylene glycol diacrylate into the styrene-maleic acid copolymer modified polysiloxane obtained in the step 2 according to the mass ratio of the styrene-maleic acid copolymer modified polysiloxane to the epoxy resin and tripropylene glycol diacrylate of 6:1:1, and heating to 80 ℃ for reaction for 2 hours under the protection of nitrogen to obtain the epoxy modified polysiloxane resin.
2. Preparation of polysiloxane modified filler
According to the mass ratio of wollastonite to vinyl triethoxysilane to styrene-maleic acid copolymer modified polysiloxane prepared in the step 2 to deionized water of 10:1:4:20, sequentially adding vinyl triethoxysilane, the styrene-maleic acid copolymer modified polysiloxane prepared in the step 2 and deionized water into wollastonite, and heating to 60 ℃ to react for 2 hours to obtain polysiloxane modified filler.
3. Preparation of the composition
And (3) uniformly mixing 55 parts of the epoxy modified polysiloxane resin, 30 parts of the polysiloxane modified filler and 15 parts of deionized water to obtain the composition.
4. Preparation of the coating
The composition was coated on the surface of a metal substrate, dried at room temperature for 1 week to obtain the coating, and then subjected to performance test.
Example 2
1. Preparation of epoxy modified polysiloxane resins
Step 1, mixing 4-acetoxystyrene, maleic acid and hydroxypropyl acrylate according to a molar ratio of 3:2:1, and then adding benzoyl peroxide according to 6% of the total mass of the 4-acetoxystyrene, the maleic acid and the hydroxypropyl acrylate to react for 1h at 90 ℃ to obtain a styrene-maleic acid copolymer containing hydroxyl;
Step 2, uniformly mixing D3 and silica sol according to the mass ratio of D3 to silica sol of 5:4, standing for 1h at the temperature of 60 ℃, and adding the hydroxyl-containing styrene-maleic acid copolymer obtained in the step 1 into D3 according to the mass ratio of 3:1, wherein the hydroxyl-containing styrene-maleic acid copolymer reacts for 2.5h at the temperature of 70 ℃ to obtain styrene-maleic acid copolymer modified polysiloxane;
And 3, adding epoxy resin and tripropylene glycol diacrylate into the styrene-maleic acid copolymer modified polysiloxane obtained in the step 2 according to the mass ratio of the styrene-maleic acid copolymer modified polysiloxane to the epoxy resin and tripropylene glycol diacrylate of 5:1:1, and heating to 70 ℃ for reaction for 2.5 hours under the protection of nitrogen to obtain the epoxy modified polysiloxane resin.
2. Preparation of polysiloxane modified filler
And (2) adding vinyl trimethoxy silane, the styrene-maleic acid copolymer modified polysiloxane prepared in the step (2) and deionized water into the ceramic particles in sequence according to the mass ratio of 10:2.5:15, and heating to 50 ℃ for reaction for 3 hours to obtain the polysiloxane modified filler.
3. Preparation of the composition
And (3) uniformly mixing 60 parts of the epoxy modified polysiloxane resin, 20 parts of the polysiloxane modified filler and 20 parts of ethanol to obtain the composition.
4. Preparation of the coating
The composition was coated on the surface of a metal substrate, dried at room temperature for 1 week to obtain the coating, and then subjected to performance test.
Example 3
1. Preparation of epoxy modified polysiloxane resins
Step 1, mixing 4-tert-butoxyacyloxy styrene, maleic acid and hydroxyethyl acrylate according to a molar ratio of 1:1:1, and then adding azodiisobutyronitrile according to 8% of the total mass of the 4-tert-butoxyacyloxy styrene, the maleic acid and the hydroxyethyl acrylate to react for 3 hours at 85 ℃ to obtain a styrene-maleic acid copolymer containing hydroxyl;
step 2, uniformly mixing D4 and silica sol according to a mass ratio of 5:6, standing for 1h at a temperature of 40 ℃, and adding the hydroxyl-containing styrene-maleic acid copolymer obtained in the step 1 into D4 according to a mass ratio of 1:1, wherein the hydroxyl-containing styrene-maleic acid copolymer reacts for 1.5h at a temperature of 85 ℃ to obtain styrene-maleic acid copolymer modified polysiloxane;
And 3, adding epoxy resin and tripropylene glycol diacrylate into the styrene-maleic acid copolymer modified polysiloxane obtained in the step 2 according to the mass ratio of the styrene-maleic acid copolymer modified polysiloxane to the epoxy resin and tripropylene glycol diacrylate of 7:1:1, and heating to 90 ℃ for reaction for 2 hours under the protection of nitrogen to obtain the epoxy modified polysiloxane resin.
2. Preparation of polysiloxane modified filler:
and (2) adding 3-aminopropyl triethoxysilane, the styrene-maleic acid copolymer modified polysiloxane prepared in the step (2) and deionized water into the mica powder in sequence according to the mass ratio of the styrene-maleic acid copolymer modified polysiloxane to water of 10:0.5:3:30, and heating to 80 ℃ to react for 1h to obtain the polysiloxane modified filler.
3. Preparation of the composition
And uniformly mixing 40 parts of the epoxy modified polysiloxane resin, 40 parts of the polysiloxane modified filler and 20 parts of water to obtain the composition.
4. Preparation of the coating
The composition was coated on the surface of a metal substrate, dried at room temperature for 1 week to obtain the coating, and then subjected to performance test.
Example 4
1. Preparation of epoxy modified polysiloxane resins
Step 1, mixing p-hydroxystyrene, maleic acid and hydroxyethyl acrylate in a molar ratio of 2:1:1, adding azodiisobutyronitrile accounting for 4% of the total mass of the p-hydroxystyrene, the maleic acid and the hydroxyethyl acrylate, and reacting for 2 hours at 80 ℃ to obtain a styrene-maleic acid copolymer containing hydroxyl;
Uniformly mixing DMC and silica sol according to a mass ratio of 5:2, standing for 0.5h at a temperature of 50 ℃, adding the hydroxyl-containing styrene-maleic acid copolymer obtained in the step 1 into DMC according to a mass ratio of 2:1, and reacting for 2h at a temperature of 75 ℃ to obtain styrene-maleic acid copolymer modified polysiloxane;
and 3, adding epoxy resin and tripropylene glycol diacrylate into the styrene-maleic acid copolymer modified polysiloxane obtained in the step 2 according to the mass ratio of the styrene-maleic acid copolymer modified polysiloxane to the epoxy resin and tripropylene glycol diacrylate of 6:1:1, and heating to 80 ℃ for reaction for 2 hours under the protection of nitrogen to obtain the epoxy modified polysiloxane resin.
2. Preparation of the composition
And mixing 55 parts of the epoxy modified polysiloxane resin, 30 parts of wollastonite and 15 parts of water uniformly to obtain the composition.
3. Preparation of the coating
The composition was coated on the surface of a metal substrate, dried at room temperature for 1 week to obtain the coating, and then subjected to performance test.
Comparative example 1
1. Preparation of epoxy modified polysiloxane resins
Step 1, mixing p-hydroxystyrene, maleic acid and hydroxyethyl acrylate in a molar ratio of 2:1:1, adding azodiisobutyronitrile accounting for 4% of the total mass of the p-hydroxystyrene, the maleic acid and the hydroxyethyl acrylate, and reacting for 2 hours at 80 ℃ to obtain a styrene-maleic acid copolymer containing hydroxyl;
Step 2, adding the hydroxyl-containing styrene-maleic acid copolymer obtained in the step 1 into DMC according to the mass ratio of the hydroxyl-containing styrene-maleic acid copolymer to DMC of 2:1, and reacting for 2 hours at 75 ℃ to obtain styrene-maleic acid copolymer modified polysiloxane;
and 3, adding epoxy resin and tripropylene glycol diacrylate into the styrene-maleic acid copolymer modified polysiloxane obtained in the step 2 according to the mass ratio of the styrene-maleic acid copolymer modified polysiloxane to the epoxy resin and tripropylene glycol diacrylate of 6:1:1, and heating to 80 ℃ for reaction for 2 hours under the protection of nitrogen to obtain the epoxy modified polysiloxane resin.
2. Preparation of polysiloxane modified filler
The polysiloxane modified filler was prepared in the same manner as in example 1.
3. Preparation of the composition
The preparation of the composition was the same as in example 1.
4. Preparation of the coating
The coating was prepared as in example 1.
Comparative example 2
1. Preparation of epoxy modified polysiloxane resins
Step1, mixing styrene, maleic acid and ethyl acrylate according to the molar ratio of 2:1:1, adding azodiisobutyronitrile accounting for 4% of the total mass of the styrene, the maleic acid and the ethyl acrylate according to the addition amount of an initiator, and reacting for 2 hours at 80 ℃ to obtain a styrene-maleic acid copolymer;
Step 2, uniformly mixing DMC and silica sol according to a mass ratio of 5:2, standing for 0.5h at a temperature of 50 ℃, adding the styrene-maleic acid copolymer obtained in the step 1 into DMC according to a mass ratio of 2:1, and reacting for 2h at a temperature of 75 ℃ to obtain styrene-maleic acid copolymer modified polysiloxane;
and 3, adding epoxy resin and tripropylene glycol diacrylate into the styrene-maleic acid copolymer modified polysiloxane obtained in the step 2 according to the mass ratio of the styrene-maleic acid copolymer modified polysiloxane to the epoxy resin and tripropylene glycol diacrylate of 6:1:1, and heating to 80 ℃ for reaction for 2 hours under the protection of nitrogen to obtain the epoxy modified polysiloxane resin.
2. Preparation of polysiloxane modified filler
The polysiloxane modified filler was prepared in the same manner as in example 1.
3. Preparation of the composition
The preparation of the composition was the same as in example 1.
4. Preparation of the coating
The coating was prepared as in example 1.
Comparative example 3
1. Preparation of epoxy modified polysiloxane resins
The preparation of the epoxy-modified polysiloxane resin was the same as in example 1.
2. Preparation of polysiloxane modified filler
According to the mass ratio of wollastonite to polysiloxane to deionized water of 10:4:20, sequentially adding polysiloxane and deionized water into wollastonite, and heating to 60 ℃ for reaction for 2 hours to obtain polysiloxane modified filler, wherein the polysiloxane is styrene-maleic acid copolymer modified polysiloxane, and the preparation method is the same as that in the example 1.
3. Preparation of the composition
The preparation method of the composition was the same as in example 1.
4. Preparation of the coating
The preparation of the coating was the same as in example 1.
Performance testing
The performance test methods and results are shown in tables 1 and 2. Wherein:
1. Test of impact resistance (deformation 3.+ -. 0.3mm, 5/8", 134in-1 b) reference AAMA2605-17A, ASTM D2794-93 (2019);
2. The test of the hydrochloric acid resistance and the alkali resistance is referred to GB/T9274-1988, and the test method of the salt spray resistance (3000 h) is referred to GB/T1865-2007;
3. Test methods for detergent resistance (3%, 72 h) refer to AAMA2605-17A, ASTM D2244-16, water and oil contact angles refer to ASTM D7334-08 (2013);
4. The performance of the artificial weather aging resistance (3000 h), the test is carried out according to GB/T1865-2009 and the cyclic aging resistance test (25 times) is carried out according to GB/T1766;
5. hardness testing was performed with reference to GB/T6739-2006, and bending testing was performed with reference to GB/T6742-2007;
6. adhesion (pull-off method) test methods were performed with reference to GB/T5210-2006;
7. The wet heat resistance (3000 h) test method is referred to GB/T174-02007, and the wet cold resistance (12 times) test is referred to JG/T25-1999;
8. The thermal conductivity was tested with reference to GB 10295-2008.
TABLE 1
| Impact resistance (deformation 3.+ -. 0.3mm, 5/8', 134in-1 b) | Artificial weather aging resistant (5000 h) | Hardness is not less than | Bending test is less than or equal to | Adhesion (pull open method)/Mpa | Circulation aging test (25 times) | Humidity and cold resistance (15 times) | |
| Example 1 | No flaking off phenomenon | Does not rust, bubble and fall off | 2H | Level 1 | 8.1 | Pulverizing to less than or equal to 2 grades, no rust, no foaming, no falling off, no cracking | No abnormality |
| Example 2 | No flaking off phenomenon | Does not rust, bubble and fall off | 2H | Level 1 | 7.9 | Pulverizing to less than or equal to 2 grades, no rust, no foaming, no falling off, no cracking | No abnormality |
| Example 3 | No flaking off phenomenon | Does not rust, bubble and fall off | 2H | Level 1 | 7.8 | Pulverizing to less than or equal to 2 grades, no rust, no foaming, no falling off, no cracking | No abnormality |
| Example 4 | No flaking off phenomenon | Does not rust, bubble and fall off | 3H | Level 1 | 7.2 | Pulverizing to less than or equal to 2 grades, no rust, slight foaming, no falling off and no cracking | No abnormality |
| Comparative example 1 | No flaking off phenomenon | Does not rust and foam | 2H | Level 1 | 8.0 | The pulverization is less than or equal to 2 grades, does not rust, foam and crack | No abnormality |
| Comparative example 2 | Slight flaking off phenomenon | Does not rust, does not foam, and slightly falls off | 2H | Level 1 | 5.1 | Pulverizing to powder of no more than 2 grades, no rust, no foaming, slight falling, no cracking | Slightly fall off |
| Comparative example 3 | No flaking off phenomenon | Does not rust, slightly foam and fall off | 2H | Level 1 | 6.9 | Pulverizing to less than or equal to 2 grades, no rust, no foaming, no falling off, no cracking | No abnormality |
TABLE 2
| Acid resistance | Alkali resistance | Detergent resistance (3%, 100 h) | Contact angle of water | Oil contact angle | Salt spray resistance (3000 h) | Circulation aging test (25 times) | Humidity and cold resistance (12 times) | Coefficient of thermal conductivity (W/(m.K)) | |
| Example 1 | 600H without abnormality | 480H without abnormality | The coating has no flaking and no obvious appearance change | 125.7° | 112.3° | Does not rust, bubble and fall off | Pulverizing to less than or equal to 2 grades, no rust, no foaming, no falling off, no cracking | No abnormality | 0.051 |
| Example 2 | 600 H no abnormality | 480H without abnormality | The coating has no flaking and no obvious appearance change | 120.8 | 110.7 | Does not rust, bubble and fall off | Pulverizing to less than or equal to 2 grades, no rust, no foaming, no falling off, no cracking | No abnormality | 0.050 |
| Example 3 | 600H without abnormality | 480H without abnormality | The coating has no flaking and no obvious appearance change | 121.7 | 111.6 | Does not rust, bubble and fall off | Pulverizing to less than or equal to 2 grades, no rust, no foaming, no falling off, no cracking | No abnormality | 0.048 |
| Example 4 | 600H without abnormality | 480H without abnormality | Slight flaking of the coating occurs | 110.5 | 101.6 | Does not rust, bubble and fall off | Pulverizing to less than or equal to 2 grades, no rust, no bubbling, no falling off, and cracking | No abnormality | 0.061 |
| Comparative example 1 | 600H without abnormality | 480H without abnormality | The coating has no flaking and no obvious appearance change | 123.5 | 111.3 | Does not rust, bubble and fall off | Pulverizing to less than or equal to 2 grades, no rust, no foaming, no falling off, no cracking | No abnormality | 0.085 |
| Comparative example 2 | 600H without abnormality | 480H without abnormality | Spalling of the coating | 120.6 | 109.8 | Does not rust, slightly foams and does not fall off | Pulverizing to less than or equal to 2 grades, no rust, no foaming, falling off and no cracking | No abnormality | 0.057 |
| Comparative example 3 | 600H without abnormality | 480H without abnormality | The coating has no flaking and no obvious appearance change | 118.7 | 107.9 | Does not rust, bubble and fall off | Pulverizing to less than or equal to 2 grades, no rust, no bubbling, no falling off, and slight cracking | No abnormality | 0.059 |
The test results show that the coating prepared by the composition provided by the invention is used for the metal surface, has stronger adhesive force, and in addition, the prepared coating also has excellent temperature resistance, ageing resistance, durability, solvent resistance, weather resistance, acid and alkali resistance, better mechanical property and heat insulation performance, can be better suitable for special environments such as air, underwater and the like, has potential application as a coating in the fields of aircrafts and ships, and has better application prospect.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411280125.4A CN118931387B (en) | 2024-09-12 | 2024-09-12 | A polysiloxane-based thermal insulation composition, coating and preparation method thereof suitable for metal substrates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411280125.4A CN118931387B (en) | 2024-09-12 | 2024-09-12 | A polysiloxane-based thermal insulation composition, coating and preparation method thereof suitable for metal substrates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118931387A CN118931387A (en) | 2024-11-12 |
| CN118931387B true CN118931387B (en) | 2025-02-28 |
Family
ID=93362460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411280125.4A Active CN118931387B (en) | 2024-09-12 | 2024-09-12 | A polysiloxane-based thermal insulation composition, coating and preparation method thereof suitable for metal substrates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118931387B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106189831A (en) * | 2016-07-06 | 2016-12-07 | 无锡华东锌盾科技有限公司 | A kind of epoxy-modified polysiloxane coating and preparation method thereof |
| CN115477895A (en) * | 2022-09-24 | 2022-12-16 | 依工特种材料（苏州）有限公司 | Multi-curing conformal coating and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104744644B (en) * | 2015-01-07 | 2019-08-23 | 北京金汇利应用化工制品有限公司 | A kind of organo-mineral complexing modified aqueous acrylic acid epoxy ester resin and preparation method thereof |
-
2024
- 2024-09-12 CN CN202411280125.4A patent/CN118931387B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106189831A (en) * | 2016-07-06 | 2016-12-07 | 无锡华东锌盾科技有限公司 | A kind of epoxy-modified polysiloxane coating and preparation method thereof |
| CN115477895A (en) * | 2022-09-24 | 2022-12-16 | 依工特种材料（苏州）有限公司 | Multi-curing conformal coating and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118931387A (en) | 2024-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105086823B (en) | Room temperature silicone curing and anticorrosive coating | |
| CN113278312B (en) | Organic-inorganic hybrid water-based emulsion, preparation method thereof and super-anticorrosive coating | |
| CN110885630A (en) | Organic silicon water-based high-temperature-resistant special coating and preparation method thereof | |
| CN114763437B (en) | Preparation method and application of modified hydroxypropyl silicone oil | |
| CN110684440A (en) | Anti-corrosion toughness coating for outdoor communication tower and preparation method thereof | |
| CN108485522B (en) | A kind of high wear-resistant super-hydrophobic composite coating, preparation method and coating made therefrom | |
| CN118126625A (en) | Hard film polysiloxane coating and preparation method and application thereof | |
| CN111378356B (en) | Anti-icing coating for low-temperature high-humidity environment and preparation method thereof | |
| CN117567677A (en) | A kind of water-based hydroxyacrylic acid dispersion and its preparation method and application | |
| CN104004429B (en) | Based on the normal temperature solidified composite coating and preparation method thereof of modification 107 silicon rubber | |
| CN118995011B (en) | High temperature resistant super hydrophobic long-acting anticorrosion coating and preparation method thereof | |
| CN114957616B (en) | Fluorine-containing hydroxyl resin and preparation method and application thereof | |
| CN118931387B (en) | A polysiloxane-based thermal insulation composition, coating and preparation method thereof suitable for metal substrates | |
| CN112795307B (en) | Weather-resistant self-cleaning self-layering coating and preparation method and application thereof | |
| CN108977032B (en) | Water-based dual-component high-gloss finish paint for helmet and preparation method thereof | |
| CN118064057A (en) | A super hydrophobic bionic anti-corrosion material and preparation method thereof | |
| CN114292585B (en) | Double-coated acrylic polyurethane dispersion and preparation method and application thereof | |
| CN110862755A (en) | Double-component anti-graffiti anti-sticking high-weather-resistance varnish and preparation method thereof | |
| CN115710456B (en) | A kind of water-based functional coating and preparation method thereof | |
| CN114479599B (en) | Heat-insulation self-cleaning contamination-resistant coating and preparation method thereof | |
| CN117304797A (en) | A silicone rubber protective coating and its preparation method and application | |
| CN113980554B (en) | Moisture-coating anti-condensation heat-insulation coating and preparation method thereof | |
| CN111196906B (en) | Super-hydrophobic heat-insulating coating and preparation method thereof | |
| CN111826083A (en) | Novel super-weather-resistant anticorrosive powder coating and preparation method thereof | |
| CN119307140B (en) | Anti-icing paint and preparation method thereof |
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 |