MCM-41 and SBA-15 supported Cp2ZrCl2 catalysts for the preparation of nano-polyethylene fibres via in situ ethylene extrusion polymerization |
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| Authors: | Xiaochen Dong Li Wang Guohua Jiang Zhenrong Zhao Tianxu Sun Haojie Yu Wenqin Wang |
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| Institution: | The State Key Laboratory of Polymer Reaction Engineering, College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Under atmospheric pressure, nano-polyethylene fibres were prepared via in situ ethylene extrusion polymerization, with MCM-41 and SBA-15 supported zirconocene dichloride (Cp2ZrCl2) catalytic systems, respectively. The effects of the geometrical structures and surface properties of MCM-41 and SBA-15 on the morphology of the resultant polyethylene, catalytic activity and polymerization rate were investigated and compared in various polymerization conditions. The possible formation mechanism of nano-polyethylene fibres with MCM-41 and SBA-15 supported Cp2ZrCl2 as catalyst was discussed. |
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| Keywords: | MCM-41 and SBA-15 Ethylene polymerization Nano-polyethylene fibres Atmospheric pressure |
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