Characterization of PP/EPDM/HDPE Ternary Blends: The Role of Two EPDM with Different Viscosity and Processing Method
| Autor: | Yan Zhou, Lan-peng Li, Jian-Min Feng, Bo Yin, Ming-Bo Yang |
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| Rok vydání: | 2012 |
| Předmět: |
Materials science
Polymers and Plastics Scanning electron microscope General Chemical Engineering Materials Science (miscellaneous) Izod impact strength test law.invention Differential scanning calorimetry Rheology law Materials Chemistry Extrusion High-density polyethylene Crystallization Composite material Ternary operation |
| Zdroj: | Polymer-Plastics Technology and Engineering. 51:983-990 |
| ISSN: | 1525-6111 0360-2559 |
| DOI: | 10.1080/03602559.2012.679379 |
| Popis: | In this work, PP/EPDM/HDPE ternary blends were applied. Morphologies and melt crystallization behavior, rheological property and mechanical properties of these blends were studied by scanning electron microscopy (SEM), differential scanning calorimeter (DSC), dynamic rheology analysis and mechanical properties tests. It was found that the viscosity of EPDM had greatly effect on the morphology of PP/EPDM/HDPE blends. The more perfect encapsulation structure (core of HDPE and shell of EPDM) can be formed in the PP/EPDM/HDPE 70/20/10 blend with lower viscosity EPDM2 and the Notched Izod impact strength of blend was greatly improved. The melting points of PP and HDPE in PP/EPDM1/HDPE blend decrease with the content of phenolic resin varying from 0.5 wt% to 1.5 wt% in two processing methods (the direct extrusion and lateral injection method). The ternary blends of PP/EPDM/HDPE prepared by two methods with different content of phenolic resin showed different rheological behavior: The storage (G’) and loss modul... |
| Databáze: | OpenAIRE |
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