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Citation: Hexin Zhang, Jae-Hyeong Park, Young-Kwon Moon, Eun-Bin Ko, Dong-ho Lee, Yanming Hu, Xuequan Zhang, Keun-Byoung Yoon. Preparation of graphene/MgCl₂-supported Ti-based Ziegler-Natta catalysts by the coagglomeration method and their application in ethylene polymerization[J]. Chinese Journal of Catalysis, ;2017, 38(1): 131-137. doi: 10.1016/S1872-2067(16)62559-7 shu

Preparation of graphene/MgCl₂-supported Ti-based Ziegler-Natta catalysts by the coagglomeration method and their application in ethylene polymerization

a Department of Polymer Science and Engineering, Kyungpook National University, Daegu 702-701, Korea;
b Key Laboratory of Synthetic Rubber, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130012, Jilin, China

Received Date: 29 August 2016
Revised Date: 21 September 2016

Fund Project: This work was supported by the National Research Foundation of Korea (NRF-2015R1D1A1A0161012) and the National Natural Science Foundation of China (U1462124).

We report a facile coagglomeration method for preparing graphene (G)/MgCl₂-supported Ti-based Ziegler-Natta catalysts. The effects of graphene feed ratio on catalyst morphology and ethylene polymerization behavior were examined. The synthesized catalyst exhibited very high activity for ethylene polymerization. The resultant polyethylene (PE)/G nanocomposites showed a layered morphology, and the graphene fillers were well dispersed in the 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 fillers (0.05 wt%). This work provides a facile approach to the production of high-performance PE.
- Ziegler-Natta catalyst,
- Polyethylene,
- Graphene,
- Nanocomposite,
- In-situ polymerization
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通讯作者: 陈斌, bchen63@163.com

Preparation of graphene/MgCl₂-supported Ti-based Ziegler-Natta catalysts by the coagglomeration method and their application in ethylene polymerization