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首页> 外文期刊>Journal of Polymers and the Environment >Kinetics of Recycling CF/EP Composites by Thermal Excitation of Cr_2O_3
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Kinetics of Recycling CF/EP Composites by Thermal Excitation of Cr_2O_3

机译：通过CR_2O_3的热激发回收CF / EP复合材料的动力学

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摘要

Recycling high performance carbon fibers (CFs) by thermal excitation of Cr2O3 semiconductor was proposed. The kinetic model of decomposition of epoxy resin was established and the method for solving kinetic parameters was proposed. The influences of temperature and treatment time on the decomposition rate of epoxy resin were investigated. The kinetic equation was established and the accuracy was verified experimentally. The morphology of the recycled CF was observed and monofilament tensile strength was determined. Results indicated that temperature and treatment time had positive correlation with decomposition rate of the epoxy resin. The reaction order n was 1.5, with excitation energy E of 85.03kJmol(-1) and pre-exponential factor k(0) of 1.26x10(6)min(-1). The established kinetic equation could be used to estimate the temperature and treatment time. Prolongation of treatment time could improve the monofilament tensile strength. The monofilament tensile strength of the recycled CF at 480 degrees C for 30min was 102.72% of that of the original CF, indicating that surface heat treatment was performed on CF during the recycling process.
机译：提出了通过CR2O3半导体的热激发回收高性能碳纤维（CFS）。建立了环氧树脂分解的动力学模型，提出了求解动力学参数的方法。研究了温度和处理时间对环氧树脂分解速率的影响。建立了动力学方程，并通过实验验证了准确性。观察到再循环CF的形态，测定单丝拉伸强度。结果表明，温度和处理时间与环氧树脂的分解速率具有正相关。反应顺序N为1.5，激发能量E为85.03kJmol（-1），预指数因子K（0）为1.26×10（6）分钟（-1）。已建立的动力学方程可用于估计温度和治疗时间。治疗时间的延长可以改善单丝拉伸强度。在480℃下再循环CF的单丝拉伸强度为原始CF的102.72％，表明在再循环过程中对CF进行表面热处理。

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