OLEFIN POLYMERISATION CATALYST COMPONENT, PREPARATION METHOD THEREFOR, OLEFIN POLYMERISATION CATALYST AND APPLICATION THEREOF

摘要

Provided are an olefin polymerisation catalyst component, a preparation method therefor, an olefin polymerisation catalyst and an application thereof. The olefin polymerisation catalyst contains the olefin polymerisation catalyst component and a cocatalyst, and the olefin polymerisation catalyst component contains halloysite, a transition metal component and a non-transition metal component. When the transition metal component is a titanium tetrahalide and/or a titanium alkoxide, the non-transition metal component is a magnesium-containing compound. When the transition metal component is a metallocene compound and/or a non-metallocene compound, the non-transition metal component is an aluminium-containing compound. When the transition metal component is mixture of a titanium tetrahalide and/or a titanium alkoxide and a metallocene compound and/or a non-metallocene compound, the non-transition metal component is a mixture of a magnesium-containing compound and an aluminium-containing compound. When the halloysite-containing olefin polymerisation catalyst is used in an olefin polymerisation reaction, the obtained polyolefin has a relatively high melt strength and relatively high mechanical properties.