一种耐低温开裂的环氧树脂浇注料及其制备方法和应用
By using polypropylene glycol and long-chain polyanhydride as toughening agents, combined with bisphenol A and bisphenol F epoxy resins, the problem of easy cracking of epoxy resin castings at extreme low temperatures has been solved, achieving high performance, low-temperature crack resistance, and improved mechanical properties, making it suitable for vacuum casting of new energy equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI JOHNTEM POLYMER MATERIALS CO LTD
- Filing Date
- 2025-09-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing epoxy resin casting materials are prone to cracking in extreme low-temperature environments, making it difficult to balance low-temperature toughness, system stability, and mechanical properties.
Polypropylene glycol and long-chain polyanhydride are used as toughening agents, combined with bisphenol A and bisphenol F epoxy resins. Through flexible crosslinking points and flexible chain segments to absorb stress, a resin-toughening synergistic viscosity reduction mechanism is formed, which improves low-temperature crack resistance and mechanical properties.
Without affecting the viscosity of the system, the low-temperature crack resistance and mechanical properties of epoxy resin casting materials are significantly improved, making them suitable for vacuum casting of dry-type transformer coils and instrument transformers.
Smart Images
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