Preparation and properties of PP/PC/POE blends |
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| Authors: | Shanshan Dai Lin Ye Guohua Hu |
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| Institution: | 1. State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China;2. Laboratory of Chemical Engineering Sciences, CNRS‐ENSIC‐INPL, 1 rue Grandville BP 20451, Nancy 54001, France;3. Institute Universitaire de France, Maison des Universités, 103 Boulevard Saint‐Michel, Paris 75005, France |
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| Abstract: | In order to develop PP (polypropylene)‐based blends with balanced toughness and rigidity, the poly‐blends of PP/PC (polycarbonate)/POE (ethylene–octene copolymer) were prepared by applying styrene–ethylene–propylene–styrene (SEPS) as the macromolecular compatibilizer. The compatibilizing effect was studied in terms of the mechanical, morphologies and thermal properties, and the compatibilized PP‐based blends presented remarkable improvement in impact toughness and balanced tensile strength due to the formed special morphology structure. Additionally, by preparing the pre‐blend of PC/SEPS, the melt viscosity of the PP matrix can match that of the dispersed phase PC and POE, which led to a further improvement in the mechanical property of the blends. Copyright © 2009 John Wiley & Sons, Ltd. |
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| Keywords: | polypropylene polycarbonate compatibilization toughness viscosity ratio |
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