Kinetic Features of UHMWPE Preparation with Compose-Carrier Supported Catalysts

化学工业与工程

Chemcial Industry and Engineering

2016, Vol. 33

Issue (5) :33-37 DOI: 10.13353/j.issn.1004.9533.20141171

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Kinetic Features of UHMWPE Preparation with Compose-Carrier Supported Catalysts

Si Rongshuang, Sun Hongliang, Wang Ye, Fan Jiangyang, Li Guobing

School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

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Abstract

Catalytic performance and kinetic features are studied by using the Mg-Ti type catalyst supported on SiO₂-MgCl₂ compose-carrier. The influences of the polymerization conditions upon ethylene polymerization process, such as total pressure, polymerization temperature and cocatalyst usage and the role of chain transfer reaction mechanism are investigated. The result shows that the molecular weight of UHMWPE is drastically affected by the temperature. The catalyst activity increases significantly with increasing pressure and temperature. There is an optimal Al/Ti molar ratio of catalyst with high activity.

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	Articles by authors
	Si Rongshuang
	Sun Hongliang
	Wang Ye
	Fan Jiangyang
	Li Guobing

Keywords： compose-carrier supported catalyst； UHMWPE； preparation； viscosity average molecular weight

Received 2014-12-23;

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Si Rongshuang, Sun Hongliang, Wang Ye, Fan Jiangyang, Li Guobing.Kinetic Features of UHMWPE Preparation with Compose-Carrier Supported Catalysts[J] Chemcial Industry and Engineering, 2016,V33(5): 33-37

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