There has a great economic and environmental significance for recycling high performances carbon fibers from the waste carbon fiber reinforced polymers. This paper presented a novel method for recycling carbon fiber (CF)/epoxy resin (EP) composites by thermal excitation oxide semiconductor; the effects of process parameters including the temperature, processing time, concentration and flow of O₂ on decomposition rate of resin matrix was analyzed; through some methods of analysis and testing such as micro-morphology, monofilament tensile strength, Raman spectra, the effects of process parameters on morphology, mechanical property and surface chemistry of the recycle carbon fibers were investigated; the components of the gas products were investigated by gas chromatography. The research findings provided theoretical foundations for estimating the process parameters and understanding the general law of resin matrix decomposition.

从废碳纤维增强聚合物中回收高性能碳纤维具有巨大的经济和环境意义。本文提出了一种利用热激发氧化物半导体回收碳纤维（CF）/环氧树脂（EP）复合材料的新方法。工艺参数的影响，包括温度，处理时间，O _2的浓度和流量分析了树脂基体的分解速率；通过微观形态，单丝抗拉强度，拉曼光谱等分析测试方法，研究了工艺参数对循环碳纤维形态，力学性能和表面化学的影响。通过气相色谱法研究了气体产物的成分。研究结果为估计工艺参数和理解树脂基体分解的一般规律提供了理论基础。