摘要
采用流变仪、凝胶时间测试仪和DMA法研究了3068改性环氧树脂的流变性能、凝胶时间和玻璃化转变温度,结果表明,3068树脂在70～125℃粘度约为70Pa·s,80℃下凝胶时间达到160min,玻璃化转变温度为159.3℃,常温和70℃下复合材料具有良好的力学性能,经湿热试验处理后复合材料吸水率为0.96%,力学性能保持率>75%。
Rheodynamics,gel time and glass transition temperature of 3068 modified epoxy resin were studied with rheometer,gel timer and DMA and showed in this paper.Its viscosity is about 70Pa.s at temperature range from 70 ℃ to 125℃,its gel time is 160minutes at 80 ℃ and glass transition temperature is 159.3 ℃.It has high mechanical properties at room temperature and 70 ℃.Moisture content and mechanical properties ratio of 3068 epoxy resin composites reinforced by glass yarns after hygrothermal aging experiments are 0.96% and larger than 75%,respectively.
出处
《高科技纤维与应用》
CAS
2010年第6期43-45,50,共4页
Hi-Tech Fiber and Application
关键词
环氧树脂
复合材料
湿热试验
吸水率
力学性能
epoxy resin
composites
hygrothermal aging experiments
moisture content
mechanical property
作者简介
嵇培军（1966-），男，江苏响水人，博士，高级工程师，主要从事结构和功能复合材料的研究，（电话）13641185915（电子信箱）pj_ji@sina．com。
