摘要
针对环氧树脂复合材料抗热氧老化性能差、表面易发白等缺点,以碳纳米管、石墨烯和二硫化钼为改性填料,研究了3种填料及其复配体系对环氧树脂复合材料抗热氧老化性能的影响。电阻测试结果表明,二维纳米材料可一定程度上延缓热氧条件下环氧树脂老化过程中的电阻上升趋势,其中石墨烯效果最为明显;同时样品的老化宏观表现和扫描电镜微观图像都表明,石墨烯这类片层状纳米填料的引入对于延缓老化具有正面效果,可以明显改善环氧树脂复合材料在老化过程中的表面发白现象。
In view of the disadvantages of epoxy resin composite materials such as poor thermal oxygen aging performance and white surface, carbon nanotubes, graphene and molybdenum dioxide were used as modified filler to study the effects of three fillers and their composite epoxy resin composite on thermal oxygen aging performance. The results of resistance test show that the addition of fillers could delay the rising trend of resistance of epoxy resins in the process of thermal oxygen aging to some extent, among which the effect of graphene is the most obvious. At the same time, the macroscopic aging performance of the samples and the SEM microscopic images show that the introduction of graphene and other lamellar nano-fillers has a positive effect on aging retardation, and can significantly improve the surface whitening of epoxy resin composites during aging process.
作者
刘虹邑
范东阳
李愿杰
张跃
梁智明
胡波
何明鹏
谢志辉
张新星
Hongyi Liu;Dongyang Fan;Yuanjie Li;Yue Zhang;Zhiming Liang;Bo Hu;Mingpeng He;Zhihui Xie;Xinxing Zhang(Dongfang Electric Company Academy of Science and Technology Co.,Ltd.,Chengdu 610065,China;State Key Laboratory of Polymer Materials Engineering,Polymer Research Institute of Sichuan University,Chengdu 610065,China;Dongfang Electric Machinery Company Limited,Deyang 618000,China)
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2021年第8期102-109,共8页
Polymer Materials Science & Engineering
关键词
环氧树脂
抗热氧老化
石墨烯
epoxy resin
resistance to thermo-oxidative aging
graphene
