Organic silicon high-temperature resistant coating

Abstract

The invention discloses an organic silicon high-temperature resistant coating which consists of the following components: benzyl silicon resin, a silane coupling agent, phthalic ester, chromium sesquioxide, mica powder, talc powder, aluminum stearate, barium metaborate, porcelain clay, aluminum powder and low-melting-point glass powder. In the invention, organic silicon resin is used as a base material, and the talc powder is added into the formula; and by adding the talc powder, the liner expansion coefficient of the coating can be changed, and the room-temperature alternating property and anti-cracking property at high temperature of the coating are improved. Through tests, the coating can tolerate a high temperature of 700 DEG C, and the coating layer is tough.

Description

technical field [0001] The invention relates to a coating, in particular to an organosilicon high temperature resistant coating. Background technique [0002] High temperature resistant coatings are widely used and play an important role in the oxidation protection of the outer surfaces of blast furnaces, coke ovens, sintering machines and other equipment. In addition, petroleum refining furnaces, aluminum refining furnaces, engine exhaust systems, agricultural machinery, motorcycle mufflers, etc. all work at very high temperatures for a long time, and the high temperature corrosion is serious, and high temperature resistant coatings are also required for protection. According to reports, foreign countries have developed high-temperature resistant coatings with the highest resistance to 1427 °C. However, the research in this area in our country is weak, and there are few reports on coatings that can withstand high temperatures of 700 °C. At present, the products in this ar...

AI Technical Summary

Problems solved by technology

At present, the literature reports basically focus on the synthesis and modification of silicone resin, while ignoring the role of various high-temperature pigments, fillers and additives.