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研究了 T3 0 0 /540 5和 T3 0 0 /HD0 3这 2种先进复合材料在热氧老化中的失重率、力学行为和玻璃化转变温度随老化温度与老化时间的变化。发现它们的热氧化机理包括脱湿、残余低分子组分的挥发、后固化、热分解和物理老化等 ,各机理的比重取决于老化温度
The weight loss rate, mechanical behavior and glass transition temperature of two advanced composites, T3 0 0/540 5 and T3 0 0 / HD0 3, with aging and aging time were investigated. Their thermal oxidation mechanisms were found to include dewetting, volatilization of residual low molecular weight components, post-cure, thermal decomposition and physical aging. The specific gravity of each mechanism depends on the aging temperature