1. School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
2. School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, China
3. Zhejiang Linix Motor CO LTD, Dongyang City, 322118, P. R. China
4. Hangzhou Dianzi University, Hangzhou 310018, P. R. China