Most polymer-based coatings have no or low thermal conductivity, or even are adiabatic. However, high thermal conductivity of coatings is required in some applications. For example, for heating heat exchanger surface heat dissipation and protection, beautification of the coating, in addition to play a basic protective role, or need it to have a good thermal conductivity.
In addition, some applications in addition to the requirements of thermal conductivity, it also has a high demand on insulation performance of the coating, such as electronic electrical industry often require insulation and thermal conductivity of materials, application and the direction of the purpose of a need in the resin matrix filled with insulating heat conduction, this kind of material can be used with insulation and insulation situation of cooling or heat transfer unless necessary. For the application of coating in the electrical and electronic field, insulation and heat conduction are still needed in most cases
High temperature resistant thermal conductivity insulation coating can be used as class H insulation coating. With the continuous development of electronic products to miniaturization and high density, a large number of electronic products in the future need to be made of insulation materials with high heat resistance. Only in this way can its voltage level be improved, capacity increased, volume reduced, and it can run reliably for a long time under harsh conditions such as high temperature and high load. Class H insulation impregnation coating has excellent heat resistance, electrical insulation properties, mechanical properties, is widely used in aerospace, missile, submarine, motor and other fields with high insulation grade demand.
The basic requirements of thermal conductivity and high temperature resistant coating are good mechanical properties, high thermal conductivity (low thermal resistance), good high temperature resistance, good adhesion, good electrical insulation performance.