Novel high-temperature-resistant and anti-corrosion ceramic coating and preparation technology

Abstract

The invention aims to provide a novel high-temperature-resistant and anti-corrosion ceramic coating which can resist strong-acid corrosion at the high temperature, has good wear-resisting property and heat conductivity, low spraying cost and long service life and can be firmly attached to walls of related equipment, and a preparation technology. The novel high-temperature-resistant and anti-corrosion ceramic coating comprises, in parts by weight, 45-50 parts of nano ceramic powder, 10-15 parts of powdery quartz, 10-15 parts of polyurethane resin, 5-8 parts of dodecylene alcohol ester, 3-4.5 parts of powdery calcium carbonate, 3-5 parts of cobalt powder, 2-3 parts of powdery purple clay, 1-2 parts of powdery silicon dioxide, 0.5-1 part of paraffin, 5-8 parts of ethyl acetate, 5-8 parts of n-butyl alcohol and 1-5 parts of powdery vermiculite.

Description

technical field [0001] The invention relates to a high-temperature-resistant and corrosion-resistant novel ceramic coating and a preparation process thereof. Background technique [0002] All kinds of industrial boilers and combustion furnaces have severe wear and corrosion of condensation walls, but there is no effective way to protect them. A small number of boilers are solved by spraying nickel-based coatings or other metal coatings. effective, but at a high cost. [0003] Ceramic coating is so far recognized as a stable anti-oxidation, anti-corrosion, and anti-wear material. However, although the high-temperature and anti-corrosion ceramic coatings used at home and abroad have their own advantages, they often lose sight of the other and cannot meet the high temperature and wear resistance at the same time. , corrosion, oxidation and good thermal conductivity, low cost and other requirements. [0004] Although the performance of some high-temperature and anti-corrosion ...

AI Technical Summary

Problems solved by technology

[0002] All kinds of industrial boilers and combustion furnaces have severe wear and corrosion of condensation walls, but there is no effective way to protect them. A small number of boilers are solved by spraying nickel-based coatings or other metal coatings. effective, but expensive

[0003] Ceramic coating is so far recognized as a stable anti-oxidation, anti-corrosion, and anti-wear material. However, although the high-temperature and anti-corrosion ceramic coatings used at home and abroad have their own advantages, they often lose sight of the other and cannot meet the high temperature and wear resistance at the same time. , corrosion, oxidation and good thermal conductivity, low cost and other requirements

[0004] Although the performance of some high-temperature and anti-corrosion coatings is good, the cost of spraying is too high, so it is not suitable for popularization