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.
|Number of pages||5|
|Journal||Journal of Engineering and Applied Science|
|Publication status||Published (in print/issue) - 1 Dec 1996|
|Event||Proceedings of the 1996 54th Annual Technical Conference. Part 2 (of 3) - Indianapolis, IN, USA|
Duration: 5 May 1996 → 10 May 1996