Method for preparing cyclic olefin copolymer composite insulating dielectric film
By grafting polyimide in cycloolefin copolymer, changing the chain conformation and local arrangement, the cycloolefin copolymer composite insulating dielectric film is solved, and the insulation performance deterioration and energy storage efficiency of polymer dielectric films under high temperature or high electric field is achieved, achieving efficient breakdown performance and energy storage performance improvement.
Patent Information
- Application Number
- CN202411209219.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2044-08-30
AI Technical Summary
The existing polymer dielectric film capacitors have deteriorated insulation performance and reduced energy storage efficiency under high temperature or high electric field conditions.
By grafting polyimide in the cycloolefin copolymer, a large number of fluorine atoms and large pendant groups of benzene rings are introduced, the conformation and local arrangement of the polymer chain are changed, and trap sites are introduced to prepare a cycloolefin copolymer composite insulating dielectric film.
It significantly improves the dielectric breakdown field strength, discharge energy density and charge and discharge efficiency, solves the problems of deterioration of insulation performance and reduction of energy storage efficiency under high temperature or high electric field conditions, and is simple and environmentally friendly, suitable for industrial production.