1. School of Materials Science and Engineering, National Institute for Advanced Materials Nankai University Tianjin 300350 P. R. China
2. CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics University of Science and Technology of China Hefei 230027 P. R. China
3. Key Laboratory of Functional Polymer Materials of Ministry of Education College of Chemistry Nankai University Tianjin 300350 P. R. China
4. School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center Nankai University Tianjin 300350 P. R. China