文献类型：期刊文献

英文题名：The effect of ceria nanoparticles on improving heat resistant properties of fluorosilicone rubber

作者：Xu, Xiang[1];Liu, Junjie[1];Chen, Pei[1];Wei, Dafu[1];Guan, Yong[1];Lu, Xiaojuan[2];Xiao, Huining[2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]North China Elect Power Univ, Sch Environm Sci & Engn, Baoding 071000, Peoples R China

年份：2016

卷号：133

期号：42

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20162902618771);WOS:【SCI-EXPANDED(收录号:WOS:000380723800015)】；

基金：The research was supported by Shanghai Leading Academic Discipline Project (B502) and Shanghai Key Laboratory Project (08DZ2230500). The authors gratefully acknowledge the financial support of the National Science Foundation of China (Grant 51573043) and the Fundamental Research Funds for the Central Universities (No. 2015ZD25). Support from FSIR Advanced Material Co., Ltd. is also gratefully acknowledged.

语种：英文

外文关键词：ageing; degradation; nanoparticles; nanowires and nanocrystals; thermal properties; rubber

摘要：The thermal aging behavior of poly(3,3,3-trifluoropropyl)methylsiloxane was investigated by thermal gravimetric analysis and isothermal aging tests, and the results indicated the degradation mechanism II, oxidation scission of the side groups, played a more important role when the temperature was below 350 degrees C. The addition of ceria had significantly improved the thermal stability of fluorosilicone rubber (FSR) by inhibiting the oxidation scission. Moreover, two types of ceria including laminar-structure ceria (LS-CeO2) and nanoparticle ceria (N-CeO2) were prepared and surface was modified by KH570 and characterized by scanning electron microscopy, transmission electron microscope, and X-ray diffractometer. FSR incorporated with modified LS-CeO2 and N-CeO2 revealed a significant improvement on the heat resistant properties. In particular, after having been thermal oxidative aged for 70 h at 250 degrees C, FSR containing 2 wt % of modified N-CeO2 maintained 72.6% of tensile strength and 63.9% of elongation at break, respectively, while FSR without ceria completely failed. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44117.