氢化丁腈橡胶/多壁碳纳米管复合材料的热油老化行为研究  

Thermal oil aging behavior of hydrogenated nitrile rubber/multi walled carbon nanotube composites

作　　者：陈旭明[1] 李志才[1] 郭建华[1] 曾幸荣[1] 罗权焜[1] Xuming Chen;Zhicai Li;Jianhua Guo;Xingrong Zeng;Quankun Luo(School of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]材料科学与工程学院,华南理工大学,广东广州510640

出　　处：《广东橡胶》2018年第3期1-10,共10页Guangdong Rubber

摘　　要：研究氢化丁腈橡胶(HNBR)/多壁碳纳米管(MWCNT)复合材料在自由状态和压缩状态下热油老化时间对复合材料性能的影响。采用FT-IR分析对复合材料和3#标准油进行表征,利用显微镜观察自由状态下热油老化后复合材料的表面形貌,采用TGA分析表征自由状态和压缩状态下复合材料的不同位置(边缘或内部)样品的热稳定性,研究老化时间对复合材料的压缩应力和压缩应变能密度的影响,利用扫描电子显微镜(SEM)和能谱仪(EDS)分析复合材料边缘和内部的样品,探究压缩状态下热油老化的HNBR复合材料的热降解行为。The effect of the aging time on the thermal oil aging behavior of hydrogenated nitrile rubber(HNBR)/multi walled carbon nanotube(MWCNT)composites under the free or compression state was investigated.The composites aged under the free state and the IRM 903 oil after aging for different time were characterized by Fourier transform infrared spectroscopy(FT-IR)analysis.The surface morphology of the composites aged under the free state was characterized by microscopy analysis.The thermal stability of the composites aged for different time and the edge and inner samples obtained from the composites aged under the free or compression state were characterized by thermal gravimetric analysis(TGA).The effect of aging time on the compressive stress and compressive stain energy density of the compressed composites was investigated.The scanning electronic microscopy(SEM)and energy dispersed X-ray spectroscopy(EDS)analysis were exercised to the edge and inner samples obtained from the composites.This research facilitates to discover the heterogeneous aging effect on the degradation behavior of HNBR seals under the compression state in the hot oil environment.

关 键 词：氢化丁腈橡胶 碳纳米管 复合材料 老化 压缩 

分 类 号：TQ333.7[化学工程—橡胶工业]