1. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
2. North China Institute of Aerospace Engineering, Langfang, Hebei 065000, P. R. China
3. Key Laboratory of Carbon Fiber and Functional Polymer, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, P. R. China
4. School of Mechanical Engineering, Hefei University of Technology, Hefei 230009, P. R. China