Ablation-resistant high interfacial strength carbon fiber-rubber composite material and method for preparing the same

By introducing modified silica and ceramizable fillers into the rubber matrix, and by subjecting the carbon fiber cloth to surface oxidation and modified RFL impregnation, the problem of insufficient interfacial bonding between carbon fiber and rubber was solved, resulting in a composite material with ablation resistance and high interfacial strength, suitable for aerospace and fireproof cable applications.

CN122167840APending Publication Date: 2026-06-09INNER MONGOLIA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INNER MONGOLIA UNIV OF TECH
Filing Date
2026-03-30
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Insufficient interfacial bonding between carbon fiber and rubber results in a serious defect in the peel strength of fiber-reinforced rubber composites, which cannot meet the ablation resistance and rigidity requirements of next-generation aerospace equipment.

Method used

By introducing modified silica and ceramizable fillers into the rubber matrix, and by subjecting the carbon fiber cloth to surface oxidation and modified RFL impregnation, strong interactions such as covalent bonds or hydrogen bonds are formed, thereby improving the interfacial bonding performance.

Benefits of technology

It significantly improves the ablation resistance and overall mechanical properties of carbon fiber-rubber composite materials, meeting the application requirements of aerospace and fire-resistant cables and other fields.

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Abstract

This invention belongs to the technical field of carbon fiber reinforced rubber composite materials, specifically relating to an ablation-resistant, high-interfacial-strength carbon fiber-rubber composite material and its preparation method, comprising: modified rubber and modified carbon fiber cloth; the modified rubber comprises the following components by mass: 100 parts NBR, no less than 40 parts silane coupling agent modified silica, and no less than 30 parts ceramizable mineral filler; the modified carbon fiber cloth is a modified carbon fiber cloth treated with modified RFL impregnation solution; by introducing modified silica and ceramizable filler into the rubber matrix, and simultaneously subjecting the carbon fiber cloth to surface oxidation treatment and modified RFL impregnation modification treatment, through the joint optimization of the rubber matrix and reinforcing fibers, the composite material possesses excellent ablation resistance and overall mechanical properties, enabling it to meet the service conditions of extreme environments such as ablation resistance and particle flow erosion resistance, and has great application potential in aerospace, fireproof cables and other fields.
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