The effects of comonomer type on the blown film performance of lldpe resins made using a metallocene sincle-site catalyst

摘要

In this paper, we report on the effects of comonomer type viz. 1-butene, 1-hexene and l-octene, on the blown film perofrmance of linear low density polyethylene (LLDPE) resins made using a metallocene single-site catalyst. The effect of film thickness on blown film properties was also examined. The resins were characterized in detail with respect to their rheological, thermal and molecular characteristics. It was established that these three copolymers, despite the great similarities in their molecular, rheological and thermal properties, exhibited blown film perofrmance that clearly increased with increasing length of the alpha-olefin employed.