高温真空老化对X2101双马树脂基复合材料结构及力学性能的影响  

Effect of Vacuum Aging on Properties and Structure of X2101 BMI Matrix Composites

作　　者：熊需海[1] 张朝鹏 任荣[1] 崔旭[1] 李桂洋 XIONG Xu-hai;ZHANG Chao-peng;REN Rong;CUI Xu;LI Gui-yang(Liaoning Key Laboratory of Advanced Polymer Matrix Composites ＆ Faculty of Aerospace Engineering, Shenyang Aero-space University, Shenyang 110136, China;Aerospace Research Institute of Materials ＆ Processing Technology, Beijing 100076, China)

机构地区：[1]沈阳航空航天大学先进聚合物基复合材料辽宁省重点实验室,沈阳110136 [2]航天材料及工艺研究所,北京100076

出　　处：《装备环境工程》2018年第2期14-18,共5页Equipment Environmental Engineering

基　　金：国家自然科学基金(51303107;51603058);国防基础科研重点项目(A3520110001);航空科学基金项目(2014ZF54030);辽宁省自然科学基金项目(201602569;201602149);辽宁省高等学校重点实验室基础研究项目(LZ2015057;LZ2015058)

摘　　要：目的研究高温-真空环境对新型X2101双马树脂基复合材料结构及性能的影响。方法采用管式炉分别在330,350,370,400℃等高温/真空耦合条件下对X2101双马树脂基复合材料层合板进行热老化处理,利用称重法、傅里叶红外光谱仪(FTIR)、万能试验机和动态热机械分析仪(DMA)等测试手段表征分析老化条件对复合材料的质损率、化学结构、力学性能、动态力学行为的影响。结果复合材料的最高质损率低于4%。在350℃以下,热老化对基体树脂化学结构的影响较小,随着老化温度的升高,储能模量呈现出先增大后减小的趋势;350℃热老化10 h后复合材料的力学性能保持率在65%以上。结论 X2101双马树脂基复合材料是一种性能优良的耐高温结构材料,可用于制造在300℃高温下服役的航空航天结构件。Objective To investigate effects of vacuum aging on properties and structure of X2101 bismaleimide （BMI） ma-trix composites. Methods The X2101 BMI matrix composites were suffered from a high-temperature and vacuum aging in a tube furnace at 330℃ , 350℃ , 370℃ and 400 ℃. Effects of aging conditions on mass loss ratio, chemical structure, storage modulus and mechanical properties were investigated by weighing method, Fourier infrared （FTIR） spectrometer, dynamic me-chanical analyzer （DMA） and universal test machine. Results The maximum mass loss ratio of composites was lower than 4%; thermal aging below 350 had almost no influence on the chemical structure of matrix resin; the storage modulus firstly i ℃ n-creased and then decreased with the increase of aging temperature; the retention ratio of mechanical properties of composites thermally aged at 350 was above 65%. ℃ Conclusion X2101 BMI Matrix Composites is a kind of high-temperature resistant structural material with excellent performance, and can be used to manufacture aerospace structural components servicing at300 ℃.

关 键 词：双马树脂基复合材料 高温-真空热老化 质损率 力学性能 

分 类 号：TJ04[兵器科学与技术—兵器发射理论与技术]