玄武岩纤维增强酚醛树脂复合材料高温热分析研究

摘要

The B7/S157 basalt fiber reinforced phenolic composite and G/S157 glass fiber reinforced phenolic composite were investigated by high temperature thermal analysis, thermodynamic calculation and composition analysis on the high temperature reaction products. The results show that the iron in basalt acts as the catalyst which changes the carbon-silica reaction process, decreases the reaction temperature and improves the reaction endothermic effect. The analysis results of basalt fiber reinforced phenolic composite are different from those of the glass fiber reinforced phenolic composite.%通过对B7/S157玄武岩纤维增强酚醛树脂复合材料和G/S157玻璃纤维增强酚醛树脂复合材料体系进行高温热分析研究、热力学计算及高温反应产物成分分析,结果表明:玄武岩纤维中的氧化铁及氧化亚铁成分可在化学反应中充当催化剂,改变材料体系中碳硅反应历程,使得碳硅反应可在相对较低温度下进行,促进材料的吸热效应,有别于玻璃纤维增强防热复合材料.