1. Microcellular Plastics Manufacturing Laboratory Department of Mechanical and Industrial Engineering University of Toronto Toronto M5S 3G8 Canada
2. School of Materials Science & Engineering Key Laboratory of Leather Cleaner Production China National Light Industry College of Bioresources Chemical & Materials Engineering Shaanxi University of Science & Technology Xi'an 710021 P. R. China
3. Key Laboratory of Leather Cleaner Production China National Light Industry College of Bioresources Chemical & Materials Engineering Shaanxi University of Science & Technology Xi'an 710021 P. R. China
4. Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology Shaanxi University of Science & Technology Xi'an 710021 P. R. China
5. College of Chemistry Nanchang University Nanchang 330031 P. R. China