Silicone coating capable of resisting high temperature of 800 DEG C and preparation method thereof

Abstract

The invention discloses a silicone coating capable of resisting a high temperature of 800 DEG C and a preparation method thereof. The silicone coating capable of resisting the high temperature of 800 DEG C comprises the following components in percentage by weight: 40-50% of special silicone resin, 40-45% of 50mu m aluminium powder, 1-5% of accessory ingredient and 5-10% of solvent, wherein the special silicone resin is hot setting silicone resin, the accessory ingredient is a modified amine curing agent, and the solvent is selected from one of styrene, tetrachloroethylene, trichloroethylene, ethylene glycol ether and triethanolamine. The silicone coating is stable in chemical property and free from toxicity and stimulation, further has the characteristics of high temperature resistance and high corrosion resistance, is capable of enabling a condensate to have relatively high heat resistance, fire retardance, ablation resistance and favorable electrical properties, and can be widely applied to special devices such as chimney flues, high-temperature stream pipelines, heat exchangers, high-temperature furnaces, high-temperature desulfurization equipment, petroleum and petrifaction cracking equipment, engine components and exhaust pipes.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to a silicone coating material, in particular to a silicone coating resistant to a high temperature of 800°C and a preparation method thereof. Background technique [0002] With the rapid development of industries such as aviation, aerospace, automobiles and weapons, the requirements for the performance of metal materials are getting higher and higher. Not only are metal materials required to work normally at higher temperatures and harsher corrosion environments, but also It is difficult for organic polymer materials to meet the current requirements for metal materials to have good performances such as anti-vibration, anti-fatigue, anti-temperature sudden change and anti-erosion. Ordinary coatings generally cannot form a dense protective layer through self-reaction at a certain temperature, and it is also impossible to react with metal materials in a short period of time to form a met...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of industries such as aviation, aerospace, automobiles and weapons, the requirements for the performance of metal materials are getting higher and higher. Not only are metal materials required to work normally at higher temperatures and harsher corrosion environments, but also It is difficult for organic polymer materials to meet the current use requirements if metal materials have good performances such as anti-vibration, anti-fatigue, anti-temperature sudden change and anti-scouring.

Ordinary coatings generally cannot form a dense protective layer through self-reaction at a certain temperature, and it is also impossible to react with metal materials in a short period of time to form a metal complex layer, thereby producing good adhesion; When used at the above temperature, the traditional coatings are somewhat insufficient in terms of heat and humidity resistance, salt spray resistance and high and low temperature performance.

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