# EFFECT OF RAPID COMPRESSION ON THE CRYSTALLIZATION BEHAVIOUR OF POLYETHYLENE

> Title: EFFECT OF RAPID COMPRESSION ON THE CRYSTALLIZATION BEHAVIOUR OF POLYETHYLENE Page Range: p.543-552 Author(s): Ranran Zhuo; Chunguang Shao; Qian Li; Chenggang Liu; Ruijing Zhang; Yang Zhang; Wei Cao; Changyu Shen File size: Download the pdf (subscribers only) Buy the pdf (non-subscribers)...

Canonical URL: https://polymerjournals.com/effect-of-rapid-compression-on-the-crystallization-behaviour-of-polyethylene/
Published: 2013-08-01T00:00:00+00:00
Categories: Polymers and Polymer Composites

**Title: EFFECT OF RAPID COMPRESSION ON THE CRYSTALLIZATION BEHAVIOUR OF POLYETHYLENE**
 Page Range: p.543-552
 Author(s): Ranran Zhuo; Chunguang Shao; Qian Li; Chenggang Liu; Ruijing Zhang; Yang Zhang; Wei Cao; Changyu Shen
 File size:
 ![](http://dload.gif) [Download the pdf](http://journals.asp?Page=111&JournalDownload=ON&JournalType=ppc&JournalIssue=ppc21-8&JournalID=102064&JIP=) (subscribers only)
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 Journal: Polymers and Polymer Composites
 Issue Year: ppc
 Volume: 21
 Issue No: No.8

**Abstract**
 The crystallisation behaviour of PE samples with different molecular weight was investigated through two different processes, concerning rapid compression (RC) and quench cooling (QC). The scanning electron micrographs, wide angle X-ray diffraction and Raman results showed that all the recovered samples were composed of spherulites. For the QC process, the effect of molecular weight on the spherulites morphologies was slight, but for the RC process, with increased molecular weight (MW), the growth rate as well as the final average diameter of the spherulites decreased remarkably. Additionally, for samples with the same MW, the mass fraction of the rigid amorphous phase of RC samples was lower. Furthermore, the crystallinity distributions in the longitudinal and latitude directions of the RC samples were both more uniform than those of the QC samples, implying that in the RC process, the pressure distribution was quite uniform and there was no pressure decay. 51 Refs.

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