文献类型：期刊文献

英文题名：Multi-walled carbon nanotubes acting as antioxidant for fluorosilicone rubber

作者：Guan, Yong[1];Yang, Rui[1];Huang, Yongkang[1];Yu, Chenchen[1];Li, Xiang[1];Wei, Dafu[1];Xu, Xiang[1,2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Specially Funct Polymer Mat & Related Tec, Minist Educ, Shanghai 200237, Peoples R China

年份：2018

卷号：156

起止页码：161

外文期刊名：POLYMER DEGRADATION AND STABILITY

收录：;EI(收录号：20183705806161);WOS:【SCI-EXPANDED(收录号:WOS:000448091400016)】；

基金：This research was supported by the Shanghai Leading Academic Discipline Project (B502) and the Shanghai Key Laboratory Project (Grant No. ZD20170203). The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (51573043) and the Fundamental Research Funds for the Central Universities (No. 222201817001 and 222201814004). Support from FSIR Advanced Material Co., Ltd. is also gratefully acknowledged.

语种：英文

外文关键词：Fluorosilicone rubber; Multi-walled carbon nanotubes; Antioxidant; Degradation; Radical scavenging; Selectivity

摘要：A small addition amount (0.01-4 phr) of multi-walled carbon nanotubes (MWCNTs) were blended into fluorosilicone rubber (FSR) in order to improve its thermal aging properties, and the paper was investigated from three aspects: (1) the distribution of MWCNTs inside FSR was characterized using scanning electron microscope (SEM); (2) the thermal stability of FSR and FSR/MWCNTs was evaluated by the changes of mechanical performance and weight loss in the thermo-oxidative aging process, and the function mechanism of MWCNTs was studied by thermogravimetric analysis (TGA), chemiluminescence (CL), electron spin resonance (ESR) and fourier transform infrared spectroscopy (FTIR) measurements; (3) the vulcanization properties of FSR and FSR/MWCNT5 were obtained from their vulcanization curves employing three kinds of peroxides as vulcanizers. The results showed MWCNTs, with a homogeneous distribution inside FSR, had significantly improved the antioxidant performance of FSR due to their powerful radical scavenging activity. Moreover, MWCNTs revealed no scavenging effect on the tertbutoxy radical, which ensured that FSR/MWCNT5 could be well vulcanized. (C) 2018 Elsevier Ltd. All rights reserved.