合成材料老化与应用2017，Vol.46Issue(4)：1-5,63,6.
湿热老化对PBO/T700层间混杂复合材料力学性能的影响
Hygrothermal Aging Effects on Mechanical Properties of PBO/T700 Hybrid Composites
摘要
Abstract
The hygrothermal aging effects on static and dynamic mechanical properties of PBO/T700 hybrid composites were studied in this paper by universal testing machine and dynamic mechanical analysis respectively.The results indicated that the tensile strength and modulus,flexural strength and modulus of PBO/T700 hybrid composites experience little change after hygrothermal aging.While the compressive strength and interlaminar shear strength of the hybrid composites declined with maximum drop of 14.4% and 9.5% respectively.The heat-resistance property of PBO/T700 hybrid composites increased to some extent after hygrothermal aging.The glass transition temperature(Tg) of the composites upgrade from 127.6℃ to 136.3℃ after hygrothermal aging for 30 days.However,the Tg of the composites degraded,the E′ and E″ shift toward low temperature with aging time increasing,which means a decline of heat-resistance property of the composites.关键词
PBO纤维/T700碳纤维/混杂复合材料/力学性能/湿热老化Key words
PBO fiber/T700 carbon fiber/hybrid composites/mechanical properties/hygrothermal aging分类
化学化工引用本文复制引用
张承双,沈明,崔霞,王健..湿热老化对PBO/T700层间混杂复合材料力学性能的影响[J].合成材料老化与应用,2017,46(4):1-5,63,6.基金项目
国防科工局军品配套科研项目(JPPT-125-GJGG-31-2) （JPPT-125-GJGG-31-2）
