MICROSTRUCTURE DEVELOPMENT IN THE BLOWN FILM EXTRUSION OF LINEAR LOW DENSITY POLYETHYLENES AS AFFECTED BY ALPHA-OLEFIN COMONOMERS.

Dilhan M. Kalyon, Victor Tan, Francis H. Moy, Sudhir Bhakuni

Research output: Contribution to journalConference articlepeer-review

Abstract

The microstructure of linear low density polyethylene resins with close molecular weight distributions and copolymerized with various higher alpha olefins were investigated on film samples, blown under identical blown film extrusion conditions. The detailed circumferential and axial distributions of birefringence and infrared dichroic ratio indicate that there are no universal distributions followed by all, linear low density polyethylene resins but a range of behaviour presumably affected by the extent of short chain branching, is observed. In conjunction with the information that we have reported earlier, this present report should facilitate a better understanding of the processability of linear low density polyethylene resins and the properties of their blown film products.

Original languageEnglish
Pages (from-to)741-744
Number of pages4
JournalAnnual Technical Conference - Society of Plastics Engineers
StatePublished - 1986

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