合成材料老化与应用2016，Vol.45Issue(5)：17-21,5.
热氧老化对PBO纤维复合材料力学性能的影响
The Effect of Thermo-oxidative Aging on Mechanical Properties of PBO Fiber Reinforced Composites
摘要
Abstract
The effects of thermo-oxidative aging on mechanical properties of PBO fiber reinforced composites were studied in this paper by artificial accelerated aging experiment. The tensile,flexural and interfacial properties of PBO fiber reinforced composites were tested by a universal testing machine. The results indicated that the tensile strength experienced little change after thermo-oxidative aging with different time,the flexural strength and interlam-inar shear strength of the composites declined to some extent with maximum decreasing amplitude of 8. 8% and 11. 7% respectively,while the tensile and flexural modulus of the composites upgraded. The effects of thermo-oxi-dative aging time on dynamic mechanical properties of PBO fiber reinforced composites were examined by dynamic mechanical analysis( DMA ) . The results showed that the heat-resistance property of the composite increased to some extent,and the storage modulus declined after thermo-oxidative aging. The loss modulus of the composites shifted toward high temperature with aging time increasing.关键词
PBO纤维复合材料/热氧老化/拉伸性能/弯曲性能/动态力学性能Key words
PBO fiber reinforced composites/thermo-oxidative aging/tensile properties/flexural properties/dy-namic mechanical properties分类
化学化工引用本文复制引用
张承双,刘宁,包艳玲,宋可为,鲁建军..热氧老化对PBO纤维复合材料力学性能的影响[J].合成材料老化与应用,2016,45(5):17-21,5.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）
