高温水浸对T800/环氧树脂基复合材料性能的影响  

Effect of high temperature immersion on properties of T800 carbon fiber/epoxy resin composites

作　　者：许良 边钰博 周松 肖景厚 XU Liang;BIAN Yu-bo;ZHOU Song;XIAO Jing-hou(College of Mechatronics Engineering,Shenyang Aerospace University,Shenyang 110136,China)

机构地区：[1]沈阳航空航天大学机电工程学院,沈阳110136

出　　处：《吉林大学学报（工学版）》2023年第7期1943-1950,共8页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(51775355).

摘　　要：分析了不同温度水浸环境下T800碳纤维/环氧树脂基复合材料的吸湿特性及性能。首先对其进行水浸吸湿试验,再分析其质量变化、吸湿率变化、红外光谱、水浸前后的表面形貌、玻璃化转变温度、压缩强度及层间剪切强度。结果表明,水浸环境温度越高,吸湿速率越快,玻璃化转变温度Tg下降程度越大;经水浸后,试样表面产生裂纹,纤维与树脂基体界面发生破坏,试样的层间剪切强度与压缩强度下降明显。The hygroscopic properties and properties of T800 carbon fiber/epoxy matrix composites were analyzed under water immersion conditions at different temperatures.The mass variation,moisture absorption rate variation,IR spectrum,surface morphology before and after water immersion,glass transition temperature,compressive strength and interlayer shear strength were analyzed.The results show that the temperature is higher,the rate of moisture absorption is faster,and the degree of Tg(glass transition temperature)reduction is larger.Cracks occur on the specimen surface and the interface between the fiber and the resin matrix is damaged.After water immersion,the inter-laminar shear strength and compressive strength of the sample are significantly reduced.

关 键 词：T800/环氧树脂基复合材料 水浸环境 吸湿率 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]