Preparation, crystallization behavior, and melting characteristics of β-nucleated isotactic polypropylene blends with polyamide 6

Yang, Z. , Zhang, Z., Tao, Y. and Mai, K. (2009) Preparation, crystallization behavior, and melting characteristics of β-nucleated isotactic polypropylene blends with polyamide 6. Journal of Applied Polymer Science, 112(1), pp. 1-8. (doi: 10.1002/app.29362)

Abstract

β-Nucleated isotactic polypropylene (iPP) blends with polyamide 6 (PA6) were prepared with a novel and highly efficient nano-CaCO3-supported β-nucleating agent. Maleic anhydride grafted polypropylene (PP-g-MA), glycidyl methacrylate grafted polypropylene (PP-g-GMA), maleic anhydride grafted poly(ethylene octene) (POE-g-MA), and maleic anhydride grafted poly(ethylene vinyl acetate) (EVA-g-MA) elastomers were added to the blends as compatibilizers. The nonisothermal crystallization behavior and melting characteristics of β-nucleated iPP and its blends were investigated with differential scanning calorimetry and wide-angle X-ray diffraction. The results indicated that the β-iPP content in the β-nucleated iPP blends depended not only on the preparation conditions but also on the compatibilizer type. A high β-iPP content (>95%) in the β-nucleated iPP/PA6 blends was obtained. The addition of PP-g-MA, POE-g-MA, and EVA-g-MA to the β-nucleated iPP/PA6 blends increased the content of β-iPP but decreased the crystallization temperature of iPP in the β-nucleated iPP/PA6 blends. However, the addition of PP-g-GMA decreased the content of β-iPP in the β-nucleated iPP/PA6 blends.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Yang, Dr Zhugen
• Authors: Yang, Z., Zhang, Z., Tao, Y., and Mai, K.
• College/School: College of Science and Engineering > School of Engineering > Biomedical Engineering
• Journal Name: Journal of Applied Polymer Science
• Publisher: Elsevier
• ISSN: 0021-8995
• ISSN (Online): 1097-4628