Fabrication of polyethylene/graphene nanocomposites through in situ polymerization with a spherical graphene/MgCl2-supported Ziegler-Natta catalyst

In this study, a spherical grapheme (G)/MgCl2-supported Ti-based Ziegler-Natta catalyst was prepared by a facile spray-coagglomeration method. The effects of graphene on catalyst morphology, ethylene polymerization behavior, and polymer properties were investigated. The resultant product was spheric...

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Bibliographic Details
Published in:Composites science and technology 2016-11, Vol.136, p.61-66
Main Authors: Zhang, He-Xin, Ko, Eun-Bin, Park, Jae-Hyeong, Moon, Young-Kwon, Zhang, Xue-Quan, Yoon, Keun-Byoung
Format: Article
Language:English
Subjects:
Graphene
Nanocomposite
Polyethylene
Spherical catalyst
Ziegler-Natta
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Summary:In this study, a spherical grapheme (G)/MgCl2-supported Ti-based Ziegler-Natta catalyst was prepared by a facile spray-coagglomeration method. The effects of graphene on catalyst morphology, ethylene polymerization behavior, and polymer properties were investigated. The resultant product was spherical, and the G was well dispersed in the whole polyethylene (PE) matrix. In addition, the thermal stability and mechanical properties of PE were significantly enhanced with the introduction of a very small amount of G (0.09 wt%) due to good dispersion of the graphene fillers in the PE matrix. Thus, this work provides a facile approach for the production of high-performance PE.
ISSN:0266-3538
1879-1050
DOI:10.1016/j.compscitech.2016.10.005