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为了研制热稳定性高的炭质复合材料,在热稳定性的菲尼龙树脂c 2中添加沥青炭纤维制成复合材料,并在298K～873K之间,以10℃ min的加热速度,在热失重仪中用热失重分析方法测定菲尼龙及其复合材料的热稳定性数据,表明菲尼龙在添加沥青炭纤维后,热稳定性提高164℃～275℃。采用非均向反应机理的数学模型,确定了菲尼龙在c 2及以其为基质的复合材料可能的热氧化裂解的动力学指标。
In order to develop carbonaceous composites with high thermal stability, the composites were made by adding bitumen carbon fiber to the heat-stable phenanthrene resin c 2 and heating at a heating rate of 10 ℃ min between 298K and 873K Thermal gravimetric analysis was used to determine the thermal stability of phenanthrene and its composites in a weightlessness analyzer. The results show that the thermal stability of phenanthrene increased from 164 ℃ to 275 ℃ after the addition of bitumen carbon fibers. Using the mathematical model of non-isotropic reaction mechanism, the kinetic parameters of thermal oxidative cleavage of phenanthrene on c 2 and its matrix-based composites were determined.