Preparation method of composite fiber prepared from waste hybrid fiber reinforced material and composite fiberboard prepared from composite fiber

CN121344795APending Publication Date: 2026-01-16XI'AN POLYTECHNIC UNIVERSITY
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Patent Information

Application Number
CN202511680538.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-17
Publication Date
2026-01-16

AI Technical Summary

Technical Problem

Existing technologies for preparing composite fiberboard suffer from limitations in the design of the outer cladding layer, resulting in insufficient bonding between the surface functional layer and the substrate. This makes it difficult to achieve complex or diverse textured patterns and makes the composites susceptible to environmental factors, leading to color fading and wear, which affects durability and aesthetics and limits their promotion in demanding application fields.

Method used

By employing a method for preparing waste mixed fiber reinforced materials, the interfacial bonding force is enhanced through plasma surface treatment or coupling agent pretreatment. Combined with the bilayer co-extrusion technology of microchannel array and dynamic fluid disturbance unit, a synergistic modification structure of core layer and outer cladding layer is formed, achieving controllable confluence, layering and interweaving, and producing composite fiberboard with multi-color texture and three-dimensional texture.

Benefits of technology

It achieves a strong combination of color and texture on the surface of composite fiberboard, enhances the aesthetic effect and durability of the material, breaks through the visual limitations of traditional composite fiberboard, strengthens mechanical properties and interlayer bonding strength, and ensures the integration of aesthetic effect and structural function.

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Abstract

The invention discloses a preparation method of a composite fiber prepared from a waste hybrid fiber reinforced material and a composite fiberboard prepared from the composite fiber, a double-layer co-extrusion structure synergistically modified by a core layer and an outer cladding layer is adopted, a micro-channel array and a dynamic fluid disturbance unit are integrated in a die head, melt flow is accurately regulated and controlled, and the composite fiber is obtained. Controllable confluence, layering and interweaving can be achieved in the one-time forming process, so that color patterns and three-dimensional texture layers with the natural flowing sense are directly formed on the surfaces of composite fibers, the stiff visual limitation caused by blending coloring of single color master batches is broken through, and powerful interface combination not only guarantees the basic mechanical property of the material, but also improves the mechanical property of the material. According to the composite fiberboard, the color and texture structure is more firmly attached to the fiber body, so that the aesthetic effect of the prepared composite fiberboard is not brief decoration floating on the surface, but is highly integrated with the material body, and the composite fiberboard has the inherent property of excellent durability, so that high-value recycling of waste resources is realized, and the material performance is improved.
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