Plasma-modified glass fiber reinforced polyether ether ketone-based composites and methods of making the same

By treating glass fiber cloth and polyetheretherketone film with glow discharge plasma, their interfacial compatibility is enhanced, and plasma-modified glass fiber reinforced polyetheretherketone-based composite materials with excellent mechanical properties are prepared. This solves the problem of poor interfacial compatibility and achieves a significant improvement in the mechanical properties of the composite material.

CN115610051BActive Publication Date: 2026-08-11JILIN UNIVERSITY
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Patent Information

Application Number
CN202211422706.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-15
Publication Date
2026-08-11
Estimated Expiration
2042-11-15

AI Technical Summary

Technical Problem

The poor interfacial compatibility between polyetheretherketone resin and glass fiber results in unsatisfactory mechanical properties of the composite material, limiting its development and application.

Method used

Glow discharge plasma was used to treat glass fiber cloth and polyetheretherketone film to form surface etching marks and introduce active functional groups, thereby increasing the surface roughness and surface energy of the material. The composite material was then prepared by vacuum hot pressing.

Benefits of technology

It significantly improves the interfacial bonding strength between glass fiber and polyetheretherketone resin, enhances the mechanical properties of composite laminates by 43%, and the method is energy-saving, environmentally friendly, and highly efficient.

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Abstract

This invention provides a plasma-modified glass fiber reinforced polyetheretherketone (PEEK) composite material and its preparation method, belonging to the field of glass fiber reinforced materials. The composite material is prepared by treating a PEEK film and glass fiber cloth with glow discharge plasma, followed by hot pressing, resulting in a composite material with good compatibility between PEEK and glass fiber. This method can significantly improve the interfacial bonding strength between glass fiber and PEEK resin, thereby improving the mechanical properties of the composite laminate. The interlaminar shear strength of the composite material is increased by 43% compared to the untreated composite material. Furthermore, this method also has the advantages of energy saving, environmental protection, short processing time, and high efficiency.
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