A glass fiber reinforced polyamide composite material, its preparation method and application

By adding the rigid flow aid three-arm aromatic polyamide and the surface compatibilizer POE-g-MAH to the polyamide matrix, the flowability and compatibility problems of glass fiber reinforced polyamide composites are solved, achieving high flowability and high strength, smooth surface and excellent performance.

CN122080628APending Publication Date: 2026-05-26CHINA PETROLEUM & CHEMICAL CORP +1
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2024-11-26
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing glass fiber reinforced polyamide composites suffer from poor flowability and interfacial compatibility issues during processing, leading to performance degradation, particularly low tensile strength, flexural strength, and impact strength, and the tendency for fiber floating to occur on the surface.

Method used

By adding the rigid flow aid three-arm aromatic polyamide and the surface compatibilizer POE-g-MAH to the polyamide matrix, the flowability and compatibility of the material are improved, and a high-performance short glass fiber reinforced high-temperature resistant polyamide composite material is prepared.

Benefits of technology

It improves the flowability and mechanical properties of composite materials, reduces fiber floating, increases surface smoothness, and enhances tensile strength, flexural strength, and impact strength.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122080628A_ABST
    Figure CN122080628A_ABST
Patent Text Reader

Abstract

This invention provides a glass fiber reinforced polyamide composite material, its preparation method, and its application. The glass fiber reinforced polyamide composite material comprises a polyamide matrix, glass fibers, and a rigid flow aid; the rigid flow aid is at least one of a three-armed aromatic polyamide; the structural formula of the three-armed aromatic polyamide is as follows: The preparation method includes: mixing the polyamide matrix, glass fibers, rigid flow aid, and optionally a surface compatibilizer, followed by molding to obtain the glass fiber reinforced polyamide composite material. The composite material prepared by this invention exhibits improved surface smoothness, reduced fiber floating phenomenon, and enhanced mechanical strength.
Need to check novelty before this filing date? Find Prior Art