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High-strength anti-scouring ablation-resistant heatproof coating material and preparation method thereof

A heat-resistant coating and anti-scouring technology, applied in coatings, epoxy resin coatings, etc., can solve problems such as light weight and high strength, prevent heat transfer to the substrate, reduce cost, energy consumption, heat The effect of low conductivity

Inactive Publication Date: 2021-03-12
西安长峰机电研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of other similar heat-resistant coatings have no tensile and shear strength data, or the density is greater than 1.0g / cm 3 , does not meet the requirements of light weight and high strength

Method used

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  • High-strength anti-scouring ablation-resistant heatproof coating material and preparation method thereof
  • High-strength anti-scouring ablation-resistant heatproof coating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1As shown, according to the calculation of 100 parts of paint quality, 32 parts of epoxy resin (E-44, Nantong Xingchen), 22 parts of high temperature resistant silicone resin (REN50, Wacker, Germany) and modified silicone resin (MH-30 , Senfeida Chemical) 11 parts are mixed to make a film-forming material, 8 parts of hollow microspheres, 1 part of wollastonite and 8 parts of mica powder are mixed to make a functional filler, and the film-forming material and functional filler are mixed and stirred evenly, and added 15 parts of modified amine curing agent (LS-8801, Jinan Yuyi Chemical), and add 1 part of ethyl acetate and 2 parts of silicone thinner as a solvent, mix and stir evenly, and let it air for 30 minutes at room temperature to make a high-strength anti-scour Ablation-resistant and heat-resistant coating.

[0043] Use a pneumatic spray gun to evenly spray the heat-resistant coating on the clean workpiece surface, control the spraying pressure to 0...

Embodiment 2

[0045] Such as figure 1 As shown, according to the calculation of 100 parts of paint quality, 11 parts of epoxy resin (E-51, Phoenix brand), 26 parts of high temperature resistant silicone resin (3074, Dow Corning) and modified silicone resin (MH-30, Sen Feida Chemical) 5 parts are mixed to make a film-forming material, 8 parts of hollow microspheres, 0.7 parts of wollastonite, 9 parts of mica powder and 0.3 parts of iron oxide red are mixed to make a functional filler, and the film-forming material and functional filler are mixed Stir well, add 15 parts of modified amine curing agent (LS-8801, Jinan Yuyi Chemical), and add 1 part of ethyl acetate and 4 parts of silicone diluent as solvent, mix and stir evenly, and let it air for 30 minutes at room temperature to prepare High-strength, scour-resistant, ablation-resistant, heat-resistant coating.

[0046] Use a pneumatic spray gun to evenly spray the heat-resistant coating on the clean workpiece surface, control the spraying p...

Embodiment 3

[0048] Such as figure 1 As shown, according to the calculation of 100 parts of paint quality, 15 parts of epoxy resin (E-44, Nantong Xingchen), 45 parts of high temperature resistant silicone resin (REN50, Wacker, Germany) and modified silicone resin (MH-30 , Senfeida Chemical) 8 parts are mixed to make a film-forming material, 6.2 parts of hollow microspheres, 6.2 parts of mica powder and 0.6 parts of iron oxide red are mixed to make a functional filler, and the film-forming material and functional filler are mixed and stirred evenly, and added 15 parts of modified amine curing agent (H113, Tianjin Taida Chemical), and add 2 parts of ethyl acetate and 2 parts of silicone diluent as solvent, mix and stir evenly, and let it air for 30 minutes at room temperature to make high-strength anti-erosion and ablation resistance Heat-resistant paint.

[0049] Use a pneumatic spray gun to evenly spray the heat-resistant coating on the clean workpiece surface, control the spraying pressu...

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Abstract

The invention provides a high-strength anti-scouring ablation-resistant heatproof coating material and a preparation method thereof. The high-strength anti-scouring ablation-resistant heatproof coating material comprises a film forming matter, a curing agent and functional filler, the film forming matter, the curing agent, the functional filler and an organic solvent are mixed and stirred evenly to prepare heatproof paint, and the heatproof paint is sprayed to the surface of a base material through an air spraying technology; and curing is conducted to obtain the high-strength anti-scouring ablation-resistant heatproof coating. The material is good in thermal insulation performance, low in ablation rate, light in weight, high in strength and excellent in process performance, can be widelyapplied to surface heat protection of aircrafts such as various rocket boats and ships, and can also be popularized and applied to other civil fields.

Description

technical field [0001] The invention relates to a heat-resistant coating material. Background technique [0002] At present, the heat-resistant coating materials of solid rocket motors mainly use resin or rubber as the film-forming material, and add other functional materials to play the role of heat-proof and heat-insulating protection. Its mechanism of action is mainly to use the material to undergo physical changes and chemical reactions in the process of strong aerodynamic heating to take away heat and reduce the external surface temperature of the engine when it is working. Physical changes include melting, evaporation, and sublimation of materials, and chemical reactions include depolymerization of polymers, degradation of organic materials, and other chemical reactions that can absorb a large amount of heat. Compared with ceramic heat-resistant coating materials, this type of heat-resistant coating material has the characteristics of light weight, high toughness, low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D183/04C09D7/61C08G59/50
CPCC09D163/00C09D7/61C09D7/70C08G59/5033C08L2201/08C08L2205/03C08L2205/025C08K2201/014
Inventor 苏菁张立京周一博马天信王璐
Owner 西安长峰机电研究所
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