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Received December 6, 2016
Accepted February 12, 2017
articles 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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Effects of polyolefin elastomer on physico-mechanical and thermal properties of HDPE/CaCO3/LDPE-g-MA/POE composites

Department of Chemical Engineering, Kwangwoon University, 20 Gwangun-ro, Nowon-gu, Seoul 01897, Korea 1Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources, 124 Gwahak-ro, Yuseong-gu, Daejeon 34132, Korea
chan@kw.ac.kr
Korean Journal of Chemical Engineering, May 2017, 34(5), 1531-1540(10), 10.1007/s11814-017-0040-2
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Abstract

The HDPE/CaCO3/LDPE-g-MA/POE composite was prepared by blending high density polyethylene (HDPE) filled calcium carbonate (CaCO3), with maleic anhydride grafted low density polyethylene (LDPE-g-MA) as a compatibilizer, and a polyolefin elastomer (POE). The composites exhibited improved tensile strength than composites without POE. The addition of POE led to a decrease in the d-spacing of CaCO3, indicating that core-shell structure was formed between POE and CaCO3. Because of good dispersion of CaCO3, this improved thermal stability and decreased crystallinity (Xc) and conformational change (ΔSc). The composites contributed to improved mechanical property and good dispersion of CaCO3, and efficient activation energy by accelerating the crystallization rate.

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