Epoxy resin film capacitor has excellent flame retardancy, which is an upgrade of higher technical requirements based on the original film capacitor. The reason why epoxy resin is used is that epoxy resin and its cured products are the best comprehensive performance among thermosetting resins.
Epoxy resin is a kind of organic polymer with two or more epoxy groups in the molecule. The active epoxy group can be located at the end, middle or ring structure of the molecular chain. Epoxy resin film capacitor has all the advantages of epoxy resin.
It has excellent physical and mechanical properties, electrical insulation and small curing shrinkage;
The cured epoxy resin has good stability. The main chain of cured epoxy resin is ether bond and benzene ring, and its three-dimensional cross-linking structure is dense and closed, so it is resistant to acid, alkali and various media;
The adhesive strength is high, especially the epoxy group can react with curing agent to form macromolecules and has strong cohesive force;
Raw materials are easy to obtain, the manufacturing technology is not complex, the equipment is relatively simple and the process is good;
Easy to use, it can be used as coating, electrical insulation material, adhesive, castable, potting material, wrapping material and glass fiber reinforced plastic, etc. it is widely used and plays an indispensable and important role in various fields of national economy.
The demand of epoxy resin film capacitor in power grid construction, electrified railway construction, energy-saving lighting, hybrid electric vehicle and other market demand shows a rapid growth trend.