1. Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
2. School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
3. Jinghua Plastics Industry Company Limited, Langfang 065800, P. R. China
4. Department of Medical Ultrasound, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan 250000, China