MCM-41 and SBA-15 supported Cp2ZrCl2 catalysts for the preparation of nano-polyethylene fibres via in situ ethylene extrusion polymerization

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. Experimental results indicate the geometrical structures and surface properties of MCM-41 and SBA-15 have strongly effects on the morphology of the resultant polyethylene, catalytic activity and polymerization rate. Moreover, the resultant polyethylene had higher melting points compared to the homogeneous counterpart.