湿热老化对杂环芳纶拉伸性能影响研究  

Effects of hydrothermal aging on tensile property of aramid fiber

作　　者：张楚旋 冯艳丽[1,2] 王宝生[1,2] 焦文英[1,2] 梁建英[1,2] 牛敏 

机构地区：[1]中国航天科工六院四十六所 [2]内蒙古航天新材料科技有限公司,呼和浩特010010

出　　处：《高科技纤维与应用》2013年第4期25-28,共4页Hi-Tech Fiber and Application

基　　金：国家863计划资助项目(2012AA03A212)

摘　　要：为研究芳纶Ⅲ(杂环芳纶)与芳纶Ⅱ的力学性能差异,尤其是湿热老化后对拉伸强度的影响,进行了湿热老化实验。设置了在温度80℃和相对湿度85%条件下,对纤维材料老化2 500 h的实验要求,研究了Kevlar、Armos和F-12纤维的吸湿性能、拉伸强度、断裂延长率以及弹性模量随老化时间的变化情况。结果表明:经湿热老化实验后,3种芳纶的性能略均有所下降;F-12纤维综合性能优异。In order to research the differences in mechanical properties between aramid fiber Ⅲ（heterocyclic aramid） and aramid fiber Ⅱ,especially the effects of hydrothermal aging on tensile property,hydrothermal aging experiments was carried out.This paper designed the test at the condition of 80℃、RH 85% and aging time 2500h.The change of water absorbability,tensile strength,elongation at break and elastic modulus of Kevlar fiber,Armos fiber and F-12 fiber with aging time were also investigated at this environment condition.The result shows that the properties of the three kinds of fibers are decreasing slightly after hydrothermal aging.By comparison F-12 fiber shows the best quality in the whole.

关 键 词：芳纶Ⅲ 芳纶Ⅱ 湿热老化性能 力学性能 研究 

分 类 号：TB332[一般工业技术—材料科学与工程]