Processing characteristics and mechanical properties of metallocene catalyzed linear low-density polyethylene foams for rotational molding

E Archer, E Harkin-Jones, MP Kearns, AM Fatnes

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The object of this work is to assess the suitability of metallocene catalyzed linear low-density polyethylenes for the rotational molding of foams and to link the material and processing conditions to cell morphology and part mechanical properties (flexural and compressive strength). Through adjustments to molding conditions, the significant processing and physical material parameters that optimize metallocene catalyzed linear low-density polyethylene foam structure have been identified. The results obtained from an equivalent conventional grade of Ziegler-Natta catalyzed linear low-density polyethylene are used as a basis for comparison. The key findings of this study are that metallocene catalyzed LLDPE can be used in rotational foam molding to produce a foam that will perform as well as a Ziegler-Natta catalyzed foam and that foam density is by far the most influential factor over mechanical properties of foam. (C) 2004 Society of Plastics Engineers.
Original languageEnglish
Pages (from-to)638-647
JournalPolymer Engineering and Science
Volume44
Issue number4
DOIs
Publication statusPublished - Apr 2004

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