Yield, creep, and wear properties of ultra high molecular weight polyethylene processed by high velocity compaction

A new processing method, high velocity compaction (HVC), is particularly adapted to process ultra high molecular weight polyethylene (UHMWPE). In a previous study, it has been shown that UHMWPE processed by HVC exhibits superior Young's modulus and significant ductility, owing to the preservati...

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Bibliographic Details
Published in:Journal of applied polymer science 2008-12, Vol.110 (5), p.2579-2585
Main Authors: Jauffrès, D, Lame, O, Vigier, G, Doré, F, Fridrici, V
Format: Article
Language:English
Subjects:
Applied sciences
creep
Engineering Sciences
Exact sciences and technology
Machinery and processing
Mechanics
Mechanics of materials
Miscellaneous
Moulding
Plastics
polyethylene
Polymer industry, paints, wood
processing
Technology of polymers
yielding
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Summary:A new processing method, high velocity compaction (HVC), is particularly adapted to process ultra high molecular weight polyethylene (UHMWPE). In a previous study, it has been shown that UHMWPE processed by HVC exhibits superior Young's modulus and significant ductility, owing to the preservation of nascent high crystallinity and high-quality sintering (Jauffrès et al., Polymer 2007, 48, 6374). In this article, a comparative study of yield, creep, and wear properties of HVC-UHMWPE and compression-molded UHMWPE is reported. HVC-UHMWPE has an enhanced resistance to plastic deformation, likely due to its particular microstructure that improves its wear resistance. Concerning creep resistance, HVC-UHMWPE also exhibits enhanced performances thanks to its higher crystallinity. Consequently, HVC could be a new mean to improve UHMWPE performance for a wide range of applications, requiring high wear resistance, both in industrial and biomedical fields.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.28697