Ultrahigh-temperature water-based molybdenum disulfide coating and preparation method thereof

Abstract

The invention discloses an ultra-high-temperature water-based molybdenum disulfide coating and a preparation method thereof. The ultra-high-temperature water-based molybdenum disulfide coating comprises the following components in percentage by weight: 15-25% of a water-based adhesive, 10-20% of ultra-fine molybdenum disulfide, 5-10% of ultra-fine graphite powder, 10-15% of ultra-fine aluminum oxide, 0.2-1% of an auxiliary agent, 35-45% of water and 5-15% of ethanol. According to the ultrahigh-temperature water-based molybdenum disulfide coating and the preparation method thereof, the highest temperature resistance of the prepared ultrahigh-temperature water-based molybdenum disulfide coating can reach 600 DEG C, and the ultrahigh-temperature water-based molybdenum disulfide coating does not contain an organic solvent, is green and environment-friendly, meets the requirements of environmental protection and sustainable development, and is high in solid content, few in volatile component and high in spraying efficiency.

Description

technical field [0001] The invention relates to the technical field of high temperature resistant coatings, in particular to an ultra-high temperature waterborne molybdenum disulfide coating and a preparation method thereof. Background technique [0002] Molybdenum disulfide coating has excellent high temperature lubricity and is widely used in various fasteners or metal parts in the automotive and medical industries. In automotive applications, with the increase in the power of the automobile engine, the temperature of the exhaust pipe increases significantly. The heat resistance of ordinary molybdenum disulfide coatings can no longer meet the requirements of exhaust pipe gaskets. Ordinary molybdenum disulfide coatings are generally heat resistant. Below 400 ℃, and many automobile manufacturers currently require the temperature resistance of exhaust pipe gaskets to be above 500 ℃. At the same time, the molybdenum disulfide coatings for automobile exhaust pipe gaskets curre...

AI Technical Summary

Problems solved by technology

In terms of automotive applications, as the power of automobile engines increases, the temperature of exhaust pipes increases significantly. The heat resistance of ordinary molybdenum disulfide coatings can no longer meet the needs of exhaust pipe gaskets. Ordinary molybdenum disulfide coatings are generally heat resistant. Below 400°C, while many automobile manufacturers currently require the temperature resistance of exhaust pipe gaskets to be above 500°C

At the same time, the molybdenum disulfide coatings currently used for automobile exhaust pipe gaskets are all oily coatings, which are not environmentally friendly.