Melting behavior,nonisothermal crystallization kinetics,and morphology of PP/nylon 11/EPDM‐g‐MAH blends |
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| Authors: | Biaobing Wang Guosheng Hu Lixia Wei |
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| Affiliation: | 1. Shanxi Research Center of Engineering Technology for Engineering Plastics, School of Material Science and Engineering, North University of China, Taiyuan 030051, China;2. Department of Grain Science and Industry, Kansas State University, Manhattan, Kansas 66506 |
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| Abstract: | The melting behavior, nonisothermal crystallization behavior, and morphology of pure polypropylene (PP) and its blends were investigated by differential scanning calorimetry and polarized optical microscopy. The nonisothermal crystallization kinetics was analyzed using the Avrami equation modified by Jeziorny and the equation combining the Avrami and Ozawa method. The surface fold free energy and the effective activation energy for both PP and its blends were obtained by Hoffman‐Lauritzen theory and Vyazovkin's approach, respectively. The results showed that the presence of nylon 11 hindered the mobility of PP chains but accelerated the overall crystallization rate. The POM observation confirmed that the addition of nylon 11 decreased the spherulites size of PP matrix. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008 |
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| Keywords: | PP nylon 11 melting behavior nonisothermal crystallization kinetics morphology |
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