Effect of process and material parameters on the morphology and mechanical properties of rotationally moulded polyethylene

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1 Citation (Scopus)

Abstract

The influence of processing conditions and material properties on the morphology and impact properties of rotationally moulded polyethylene is examined in this paper. Two linear low density (LLDPE) and two medium density (MDPE) polyethylenes are tested. Part crystallinity and spherulite size appear to have little effect on the impact properties of the mouldings. One of the medium density polyethylenes exhibits a dramatic decline in -20 °C impact strength at an internal mould air temperature of 230 °C, while all other materials tested appear to be increasing in impact strength over the range of processing conditions investigated.

Original languageEnglish
Pages (from-to)1671-1675
Number of pages5
JournalJournal of Engineering and Applied Science
Volume2
Publication statusPublished - 1 Dec 1996
EventProceedings of the 1996 54th Annual Technical Conference. Part 2 (of 3) - Indianapolis, IN, USA
Duration: 5 May 199610 May 1996

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Medium density polyethylenes
Impact strength
Polyethylenes
Mechanical properties
Linear low density polyethylenes
Processing
Molding
Materials properties
Air
Temperature

Cite this

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title = "Effect of process and material parameters on the morphology and mechanical properties of rotationally moulded polyethylene",
abstract = "The influence of processing conditions and material properties on the morphology and impact properties of rotationally moulded polyethylene is examined in this paper. Two linear low density (LLDPE) and two medium density (MDPE) polyethylenes are tested. Part crystallinity and spherulite size appear to have little effect on the impact properties of the mouldings. One of the medium density polyethylenes exhibits a dramatic decline in -20 °C impact strength at an internal mould air temperature of 230 °C, while all other materials tested appear to be increasing in impact strength over the range of processing conditions investigated.",
author = "E. Harkin-Jones and S. Ryan",
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pages = "1671--1675",
journal = "Journal of Engineering and Applied Science",
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AU - Ryan, S.

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N2 - The influence of processing conditions and material properties on the morphology and impact properties of rotationally moulded polyethylene is examined in this paper. Two linear low density (LLDPE) and two medium density (MDPE) polyethylenes are tested. Part crystallinity and spherulite size appear to have little effect on the impact properties of the mouldings. One of the medium density polyethylenes exhibits a dramatic decline in -20 °C impact strength at an internal mould air temperature of 230 °C, while all other materials tested appear to be increasing in impact strength over the range of processing conditions investigated.

AB - The influence of processing conditions and material properties on the morphology and impact properties of rotationally moulded polyethylene is examined in this paper. Two linear low density (LLDPE) and two medium density (MDPE) polyethylenes are tested. Part crystallinity and spherulite size appear to have little effect on the impact properties of the mouldings. One of the medium density polyethylenes exhibits a dramatic decline in -20 °C impact strength at an internal mould air temperature of 230 °C, while all other materials tested appear to be increasing in impact strength over the range of processing conditions investigated.

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