1. National and Local Joint Engineering Laboratory for Slag Comprehensive Utilization and Environmental TechnologySchool of Material Science and EngineeringShanxi University of Technology Hanzhong 723001 P. R. China
2. Faculty of Engineering and Natural SciencesTampere University P.O. Box 541 FI‐33101 Tampere Finland
3. Key Laboratory of Rubber‐Plastics of Ministry of Education/Shandong Province (QUST)School of Polymer Science & EngineeringQingdao University of Science & Technology 53‐Zhengzhou Road Qingdao 266042 P. R. China