Fiber-reinforced composite material for clothes hangers and method for producing the same

By constructing a four-level gradient interface structure for modified waste textile fibers, the problem of poor interfacial compatibility between waste textile fibers and recycled polymer matrix was solved, improving the strength, toughness, and weather resistance of hanger materials, and realizing the preparation of high-performance composite materials and the high-value utilization of waste textile materials.

CN122234575APending Publication Date: 2026-06-19XI'AN POLYTECHNIC UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XI'AN POLYTECHNIC UNIVERSITY
Filing Date
2026-05-15
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The poor interfacial compatibility between waste textile fibers and recycled polymer matrix leads to easy delamination of the interface and decreased bending resistance of hanger materials during long-term use. In addition, traditional hanger materials are expensive, not resistant to ultraviolet light, and cannot meet the requirements of high strength, toughness and weather resistance.

Method used

Modified waste textile fibers were constructed by low-temperature oxygen plasma treatment, silane coupling agent KH-550 catalytic anchoring, TEOS sol-gel construction of SiO2 transition layer, acrylate monomer ultraviolet light grafting and ZIF-8 metal-organic framework in situ growth, forming a four-level gradient interface structure of "chemical anchoring-rigid transition-flexible buffer-nano reinforcement". The modified fibers were then melt-blended and granulated with the recycled polymer matrix.

Benefits of technology

This method achieves close synergy between modified waste textile fibers and recycled polymer matrix, improving the interfacial compatibility, heat resistance, flexibility and structural stability of composite materials. It also possesses excellent mechanical properties and thermal aging stability, realizing the high-value utilization of waste textile materials.

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Abstract

This invention belongs to the field of plastic products technology, and specifically relates to a fiber-reinforced clothes hanger composite material and its preparation method. The fiber-reinforced clothes hanger composite material is composed of modified waste textile fibers and a recycled polymer matrix. The modified waste textile fibers are obtained through a five-step synergistic modification: plasma activation to introduce active groups, EDC / NHS catalytic system to achieve silane chemical anchoring, sol-gel to construct a silica rigid transition layer, ultraviolet light grafting to form a flexible polymer buffer layer, and in-situ growth of ZIF-8 metal-organic framework nanocrystals to construct a rigid reinforcement layer. This five-step synergistic modification constructs a four-level gradient interface structure of "chemical anchoring - rigid transition - flexible buffer - nano reinforcement", which enables the composite material to have high strength, high toughness and excellent heat aging resistance, realizing the high-value utilization of waste textiles.
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Citation Information

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