The mechanical and rheological behavior of the PA/TPU blend with POE‐g‐MA modifier |
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Authors: | Hsien‐Tang Chiu Chao‐Yin Chuang |
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Affiliation: | Graduate School of Polymer Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Republic of China |
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Abstract: | In this research, we attempt to improve the impact strength and the viscosity of PA (polyamide) by blending two elastomers, TPU (thermoplastic polyurethane) and POE‐g‐MA (maleic anhydride‐grafted polyethylene‐octene elastomer), in PA matrix with twin screw extruder. The ratio of blending is 80PA/20TPU and 80PA/20TPU/20POE‐g‐MA (66.66PA/16.67TPU/16.67POE‐g‐MA). Results indicate that POE‐g‐MA improves the low viscosity of PA and TPU during the blending process, and also their compatibility. Thus, the 80PA/20TPU/20POE‐g‐MA blend has better tensile stress and elongation than 80PA/20TPU blend, and furthermore POE‐g‐MA significantly improves the impact strength of PA, even to super‐toughness grade. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 |
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Keywords: | blends elastomers mechanical properties polyamides rheology |
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