环氧树脂/混合纤维复合材料高温及盐雾老化性能研究Study on High Temperature and Salt Spray Aging Properties of Epoxy/Hybrid Fiber Composites
徐志伟;陆桂来;李若谷;孙广辉;余于仿;
摘要(Abstract)：
采用连续拉挤成型工艺制备了环氧树脂/玻璃纤维带/玻璃纤维/碳纤维复合材料,研究了该复合材料的玻璃化转变温度、耐高温强度和盐雾老化对外观、微观组织、质量及拉伸强度的影响。结果表明:在120℃长期高温环境下,复合材料的拉伸强度较为稳定,保持率达到95%;盐雾老化对复合材料质量和强度的影响趋势类似,老化240 h后其性能趋于稳定,老化600 h时材料的质量和拉伸强度的变化率分别为5.21×10(-2)%和5.52%。
关键词(KeyWords)： 环氧树脂;复合材料;混合纤维;高温强度;盐雾;微观组织
基金项目(Foundation):
作者(Authors): 徐志伟;陆桂来;李若谷;孙广辉;余于仿;
DOI: 10.15925/j.cnki.issn1005-3360.2018.11.005
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