Method for reducing crystallinity of polyamide composite material
By adding glass fiber to polyamide composites and subjecting them to hot water conditioning, the problem of excessive crystallinity in polyamide composites was solved, the toughness and rigidity of the material were improved, and the dimensional stability and durability of the products were enhanced.
Patent Information
- Application Number
- CN202610756169.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-29
- Publication Date
- 2026-06-26
AI Technical Summary
In the prior art, excessive crystallinity of polyamide composites leads to increased brittleness and decreased toughness. Furthermore, uneven crystallinity during molding causes warping and deformation of the product, making it difficult to effectively improve mechanical properties through blending modification.
By adding glass fiber as a heterogeneous nucleating agent to polyamide composites, and then using a twin-screw extruder for melting and molding, combined with hot water conditioning and constant temperature immersion treatment, the crystallization process of the material is regulated, spherulite growth and perfection are inhibited, and the crystallinity is reduced.
It significantly reduces the crystallinity of polyamide composites, improves the toughness and rigidity of the material, enhances dimensional stability, achieves a balance between rigidity and toughness, and solves the problem of blind control of crystallinity in traditional processes.