1. College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, 24 Yihuan Road,
Nanyiduan, Chengdu, Sichuan 610065, People’s Republic of China
2. Institute of Advanced Polymer Materials Technology, JITRI, Nanjing 210000, China
3. Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, Ontario M5S 3G8, Canada