With the expansion of the application field of silicone impregnation paint, the requirements of adhesive strength, heat resistance, electrical insulation and other properties of impregnation paint are put forward. Insulation impregnation paint will develop in the following directions:
(1) high thermal conductivity type.
The development of organosilicon impregnated paint with high thermal conductivity is helpful to improve the capacity and efficiency of the generator.
(2) heat resistance, high pressure resistance type.
The development of impregnating paint with heat resistance and high pressure resistance is beneficial to solve the problems caused by the increase of heating for large capacity and high voltage motor.
(3) Energy saving and environmental protection type.
With the enhancement of people's awareness of energy saving, emission reduction and environmental protection, the development of Solvent free impregnating varnish with low curing volatiles, short curing time and room temperature curing is also a development trend.