A polyphenylene ether polyamide glass fiber reinforced composite material and a preparation method and application thereof
By using specific formulations and processes, combined with primary and secondary compatibilizers and glass fiber, the compatibility problem of polyphenylene ether and polyamide blends has been solved, achieving a balance between high rigidity, toughness, heat resistance and low water absorption, making them suitable for automotive parts, electronic and electrical components and communication equipment structural parts.
Patent Information
- Application Number
- CN202610623475.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-08
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the blends of polyphenylene ether and polyamide have poor compatibility, resulting in weak interfacial bonding and poor mechanical properties. It is difficult to achieve an optimal balance of rigidity, toughness, heat resistance and processing performance while ensuring low water absorption and high dimensional stability.
The composite material formulation includes polyphenylene ether resin, polyamide resin, glass fiber, maleic anhydride-grafted polyphenylene ether PPO-g-MAH as the main compatibilizer, and maleic anhydride-grafted hydrogenated styrene-butadiene-styrene block copolymer SEBS-g-MAH as the auxiliary compatibilizer. Through specific ratios and surface treatments, combined with a gradient temperature and low shear twin-screw extrusion process, synergistic interfacial compatibilization and glass fiber reinforcement are achieved.
It achieves an excellent balance of rigidity and toughness, extremely low water absorption, high heat resistance, good high-temperature performance retention, and improved processing fluidity, meeting the requirements of high-performance structural components.
Smart Images
Figure CN122404949A_ABST