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High-performance ablation-resistant coating and preparation method thereof

An ablation-resistant, high-performance technology, applied in the direction of fire-proof coatings, epoxy resin coatings, polycarbonate coatings, etc., can solve the problems of high-temperature damage and easy peeling of internal equipment that cannot protect the grassroots, so as to improve repairability and solve The effect of excessive specific gravity, excellent ablation resistance and heat insulation performance

Active Publication Date: 2020-08-14
HUNAN AEROSPACE SANFENG SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patented coating has the advantages of high temperature resistance, oil resistance and good antistatic effect, but it is easy to peel off under high temperature
[0004] A high-temperature-resistant water-based paint (publication number: CN110885595A) whose raw materials include, by weight, 10-20 parts of polyvinyl alcohol, 10-20 parts of water-soluble alkyd resin, 10-20 parts of water-soluble epoxy resin, polyethylene terephthalate 5-10 parts of ethylene glycol formate, 3-5 parts of ceramic microbeads, 3-5 parts of high-silica glass fiber, 3-5 parts of rubber powder polystyrene particle high temperature resistant slurry, 1-3 parts of emulsifier, 1-3 parts of wet agent, 1-3 parts of defoamer, 1-3 parts of dispersant and the balance of deionized water. This invention has the effect of high temperature resistance, but when the temperature is above 1000 ℃, it cannot protect the internal equipment of the base layer from being damaged by high temperature. damage

Method used

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  • High-performance ablation-resistant coating and preparation method thereof
  • High-performance ablation-resistant coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045]With 60 parts by weight of methyl phenyl polysiloxane resin, 10 parts by weight of polyethylene glycol 6000, 1 part by weight of hexamethylene diisocyanate (HDI), 30 parts by weight of hollow glass microspheres, 15 parts by weight of cellulose acetate , 1 part by weight of nano-scale amorphous carbon black, 1 part by weight of simethicone, 1 part by weight of KH-550, 20 parts by weight of ethyl acetate, stirred at a constant speed of 3000r / min for 1 hour, and prepared heat-insulating coating A group point. Then 3 parts by weight of ethyl orthosilicate, 0.5 parts by weight of dibutyltin dilaurate, and 15 parts by weight of ethyl acetate were stirred at a constant speed of 1000r / min for 0.5 hours to prepare component B of the heat-insulating coating. Component A and heat insulation B component are fully stirred and evenly applied to the surface of the substrate by spraying or brushing, and dried at room temperature for 48 hours to obtain a heat insulation layer.

[0046] ...

Embodiment 2

[0048] With 64 parts by weight of methyl phenyl polysiloxane resin, 13 parts by weight of polyglycerol 4000, 1.4 parts by weight of HDI, 36 parts by weight of nano-ceramic hollow microspheres, 19 parts by weight of cellulose acetate, 1.3 parts by weight of nano-scale amorphous Carbon black, 1.3 parts by weight of simethicone oil, 1.3 parts by weight of KH-550, and 40 parts by weight of butyl acetate were stirred at a constant speed of 4000r / min for 1 hour to prepare component A of the thermal insulation coating. Then 4 parts by weight of tetraethyl orthosilicate, 0.7 parts by weight of dibutyltin dilaurate, and 20 parts by weight of butyl acetate were stirred at a constant speed of 2000r / min for 0.5 hours to prepare component B of the heat-insulating coating. Component A and heat insulation B component are fully stirred and evenly applied to the surface of the substrate by spraying or brushing, and dried at room temperature for 48 hours to obtain a heat insulation layer.

[00...

Embodiment 3

[0051] 68 parts by weight of methyl phenyl polysiloxane resin, 18 parts by weight of polypentaerythritol 4000, 1.8 parts by weight of isophorone diisocyanate (IPDI), 42 parts by weight of silica airgel, 25 parts by weight of hydroxyethyl Cellulose, 1.8 parts by weight of nano-scale amorphous carbon black, 1.8 parts by weight of simethicone, 1.8 parts by weight of KH-560, 50 parts by weight of methyl ethyl ketone and acetone mixed solution, stirred at a constant speed of 4000r / min for 2 hours, obtained Thermal insulation coating A component. Then 4 parts by weight of tetraethyl orthosilicate, 0.7 parts by weight of stannous octoate, 23 parts by weight of methyl ethyl ketone and acetone mixed solution were stirred at a constant speed of 2000r / min for 1 hour to prepare component B of the heat-insulating coating, and then The thermal component A and the thermal insulation component B are fully stirred and evenly coated on the surface of the substrate by spraying or brushing, and d...

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Abstract

The invention discloses a high-performance ablation-resistant coating which comprises an inner heat insulation layer and an outer temperature-resistant layer. The invention further discloses a preparation method of the high-performance ablation-resistant coating. The coating has strong bonding strength and can tolerate instantaneous high temperature above 1500 DEG C, effectively obstructs externalheat flow to protect internal devices of a base material, still has good repairable performance after multiple times of heat flow scouring, and has strong practical application value.

Description

technical field [0001] The invention belongs to the technical field of production of ablation-resistant polymer coatings, and in particular relates to a high-performance ablation-resistant coating and a preparation method thereof. Background technique [0002] Under the condition of high-temperature heat flow, ablation-resistant materials absorb and block external heat through physical and chemical state and structural changes. Ablation-resistant materials are mainly divided into melting-type ablation-resistant materials, carbonization-type ablation-resistant materials, and sublimation-type ablation-resistant materials. With the continuous development of aerospace industry and special equipment manufacturing industry, more stringent performance requirements have been put forward for ablation-resistant coatings in the market. At present, ablation-resistant coatings are mainly based on single-layer epoxy resin or phenolic resin. High-temperature-resistant fillers and low-dens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D175/08C09D101/12C09D163/00C09D169/00C09D163/02C09D7/61C09D7/63C09D7/65C09D7/62
CPCC08K2201/011C08L2201/08C08L2205/025C08L2205/03C08L2205/035C09D5/18C09D163/00C09D183/04C09D7/61C09D7/62C09D7/63C09D7/65C09D7/70C08L75/08C08L1/12C08L83/04C08K13/04C08K7/28C08K3/04C08K5/544C08L69/00C08K13/06C08K9/06C08K7/06C08K7/26C08K3/36C08K7/24C08K3/346C08L1/284C08K5/5435C08K3/34C08L63/00
Inventor 熊一帜栾金龙黄鑫屈阳华张刚文风
Owner HUNAN AEROSPACE SANFENG SCI & TECH CO LTD
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