Resin composition, electrical insulator prepared therefrom, and method for preparing electrical insulator
By introducing bisphenol A type epoxy resin and alicyclic epoxy resin containing oxazolidinone structure into epoxy resin, the problem of insufficient toughness of epoxy insulation materials at high Tg was solved, realizing the preparation of electrical insulation parts with high Tg and high toughness, and improving the overall performance of the material.
CN116836520BActive Publication Date: 2026-07-07SHANGHAI ROX ELECTRIC
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Patent Information
- Application Number
- CN202311002050.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-09
- Publication Date
- 2026-07-07
- Estimated Expiration
- 2043-08-09
AI Technical Summary
Technical Problem
Existing epoxy insulation materials have poor toughness at high Tg and are prone to cracking. Furthermore, conventional toughening agents can reduce the modulus and heat resistance of the material.
Method used
By using bisphenol A type epoxy resin toughening agent containing oxazolidinone structure, combined with alicyclic epoxy resin, and by adjusting the crosslinking density and molecular chain rigidity, high Tg and high toughness electrical insulation parts are prepared.
Benefits of technology
This technology enables electrical insulation components to exhibit high toughness at high Tg, with significantly improved tensile strength, flexural strength, and breakdown field strength, while maintaining good thermal conductivity.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses a resin composition, an electrical insulating part prepared from the resin composition and a preparation method of the electrical insulating part. The resin composition for the electrical insulating part of the application is composed of the following components in parts by weight: 70-90 parts of bisphenol A type epoxy resin, 10-30 parts of alicyclic epoxy resin, 45-65 parts of a curing agent, 300-500 parts of a heat-conducting filler and 5-30 parts of a toughening agent OX; the toughening agent OX is a bisphenol A type epoxy resin containing an oxazolidone structure. The special epoxy resin toughening agent containing an oxazolidone structure is added in the formula, the use of the alicyclic epoxy resin is reduced, and a formula with a higher Tg is obtained.
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