Study on morphology of ternary polymer blends. II. Effect of composition
Study on morphology of ternary polymer blends. II. Effect of composition
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DOI:
10.1002/app.1948
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发表时间:
2001-10
影响因子:
3
通讯作者:
M. Hemmati;H. Nazokdast;H. S. Panahi
中科院分区:
文献类型:
--
作者:
M. Hemmati;H. Nazokdast;H. S. Panahi
The composition effect on morphology of polypropylene/ethylene–propylene–diene terpolymer/polyethylene (PP/EPDM/PE) and polypropylene/ethylene–propylene–diene terpolymer/polystyrene (PP/EPDM/PS) ternary blends has been investigated. In all of the blends, polypropylene as the major phase was blended with two minor phases, that is, EPDM and PE or PS. From morphological studies using the SEM technique a core–shell morphology for PP/EPDM/PE and separated dispersed morphology for PP/EPDM/PS were observed. These results were found to be in agreement with the theoretical predictions. The composition of components affected only the size of dispersed phases and had no appreciable effect on the type of morphology. The size of each dispersed phase, whether it forms core or shell or disperses separately in matrix, can be related directly to its composition in the blend. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 1138–1146, 2001