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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received April 17, 2000
Accepted October 16, 2000

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Morphology Evolution in PS/LDPE Blends in a Twin Screw Extruder: Effects of Compatibilizer

Do Young Moon Moo Hyun Kwon¹ O Ok Park^1†

Chemical Division R&D Center, Cheil Industries Inc., 322-2 Gochen-dong, Euiwang-si, Kyonki-do 437-010, Korea ¹Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 373-1 Kusong-dong, Yusong-gu, Taejon 305-701, Korea

oopark@sorak.kaist.ac.kr

Korean Journal of Chemical Engineering, January 2001, 18(1), 33-39(7), 10.1007/BF02707195

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Abstract

In order to understand the mixing in polymer extrusion, the morphology of PS/LDPE blends compatibilized with SEES was simulated based on the Lee and Park model. Experiments were performed in a co-rotating twin screw extruder and a Haake mixer, and the morphology of the compatibilized blends of various compositions was compared with the non-compatibilized ones. The size of the dispersed phase of the compatibilized blend was smaller than the noncompatibilized one, and the blend of the PE matrix had a smaller size in the dispersed phase than the non-compatibilized one. Simulation results were agreed well with experiments, and the Lee and Park model could be applied in the extrusion analysis of compatibilized polymer blends.

Keywords

Morphology PS/LDPE Blend Compatibilizer SEBS Extruder Lee and Park Model

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