Wear-resistant nanofiber-reinforced protective graphene fibers and their preparation methods and applications

By covering the nanofiber membrane on the surface of the graphene fiber and hot pressing, a three-dimensional porous network is formed, which solves the problem of insufficient wear resistance and conductivity of graphene fibers, and achieves high-strength, high-conductive and thermally conductive braiding performance, which is suitable for applications in multiple fields.

CN119900120BActive Publication Date: 2025-07-25DONGHUA UNIV
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Patent Information

Application Number
CN202510391924.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2025-07-25
Estimated Expiration
2045-03-31

AI Technical Summary

Technical Problem

Graphene fibers are easily affected by friction or wear during the preparation process, resulting in insufficient wear resistance and difficulty in braiding and forming, and gaps between fibers affect electrical and thermal conductivity.

Method used

The nanofiber membrane is coated on the surface of graphene fibers by electrospinning technology and heat-pressing rollers are processed to form a three-dimensional porous network, loading wear-resistant particles, and enhancing the bonding force and density between the fibers.

Benefits of technology

It significantly improves the wear resistance, tensile strength, electrical conductivity and thermal conductivity of graphene fibers, and is suitable for complex weaving processes, and is suitable for military protection, aerospace and intelligent textile fields.

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Abstract

The present invention belongs to the technical field of functional composite fibers, and discloses a wear-resistant nanofiber-reinforced and protected graphene fiber, a preparation method thereof and an application. The wear-resistant nanofiber-reinforced and protected graphene fiber comprises a graphene fiber bundle and nanofibers. The nanofibers coat the graphene fiber bundle in the form of a three-dimensional porous network to form a stress buffer layer; wear-resistant particles are uniformly loaded inside the three-dimensional porous network. The preparation method is as follows: fixing the surface-pretreated graphene fiber on an electrospinning nanofiber yarn machine, forming a nanofiber membrane by electrospinning and uniformly wrapping it on the surface-pretreated graphene fiber, then winding it into a roll, and then performing a hot roll treatment on the wound fiber bundle to obtain the wear-resistant nanofiber-reinforced and protected graphene fiber. The application is: used for weaving to obtain a graphene fiber fabric. The fiber prepared by the present invention and the fabric woven therefrom have excellent mechanical properties, wear resistance, electrical conductivity and thermal conductivity at the same time.
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