文献类型：期刊文献

英文题名：Preparation of chitosan-graphene nanosheet composites with enhanced electrochemical and mechanical properties

作者：Wu, Guangyu[1];Huang, Jianguo[1];Li, Weidong[2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Ceram, 1295 Dingxi Rd, Shanghai 200050, Peoples R China

年份：2017

卷号：134

期号：29

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20171403519817);WOS:【SCI-EXPANDED(收录号:WOS:000400348800024)】；

基金：This work was partly supported by the Key Project of the Natural Science Foundation of China (contract grant number 51232008).

语种：英文

外文关键词：composites; graphene and fullerenes; nanotubes; synthesis and processing techniques

摘要：In this study, we proposed an alternative way to produce graphene nanosheet (GNS)/chitosan (CS) composites. Graphite-intercalating compounds (GICs) were prepared by graphite and m-chloroperbenzion acid (M-CPBA) as starting materials. The GNS-CS composites were produced through the mixing of the GICs into CS and the removal of impurities in the final step. X-ray diffraction, atomic force microscopy, and transmission and scanning electron microscopy analyses showed that graphite could be effectively exfoliated by an intercalating agent (M-CPBA) and the GNSs were homogeneously dispersed into the CS matrix. Furthermore, we demonstrated that the electrochemical behavior and mechanical properties of the GNS-CS composites were significantly improved with a low level of GNSs in CS. The redox peak current increased 509%, and the modulus and hardness of the GNS-CS composites increased by 2.7 and 0.15 GPa, respectively, when the GNSs addition was 0.6 wt %. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45104.