【摘 要】
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Polyolefin resin is widely used in agriculture,industry,medical,military and daily life.The global consumption is more than 100Mt/a.The polyethylene obtaine
【机 构】
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College of Chemistry and Chemical Engineering,Northeast Petroleum University,Daqing City
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Polyolefin resin is widely used in agriculture,industry,medical,military and daily life.The global consumption is more than 100Mt/a.The polyethylene obtained from chromium based catalyst is more than 40%of the world's total.Since 1950's,due to high catalytic activity,simple preparation method,and the versatile polymer resin,the chromium catalyst has been a hotspot in olefin polymerization.
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