The effect of thermal relaxations on the crack initiation resistance of rotomolded linear low density polyethylenes

L. T. Pick*, E. Harkin-Jones

*Corresponding author for this work

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

The objective of this paper is to provide a better understanding of how test temperature and test frequency affect the crack initiation and propagation energies of rotomoulded materials. Trials were carried out on a range of rotomolded linear low density polyethylenes. Instrumented impact tests and dynamic mechanical thermal analysis (DMTA) were carried out on each material at a wide range of temperatures and frequencies. It was found that there is a linear relationship between the crack initiation energy of the samples and the tan δ values at all test conditions. By using this relationship it is possible to predict the crack initiation energy of a polymer part over a wide range of conditions by carrying out a small number of tests.

Original languageEnglish
Pages1231-1235
Number of pages5
Publication statusPublished - 14 Oct 2003
Event61st Annual Technical Conference ANTEC 2003 - Nashville, TN, United States
Duration: 04 May 200308 May 2003

Conference

Conference61st Annual Technical Conference ANTEC 2003
CountryUnited States
CityNashville, TN
Period04/05/200308/05/2003

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics

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