PMID- 12115454 OWN - NLM STAT- MEDLINE DCOM- 20030304 LR - 20131121 IS - 0021-9304 (Print) IS - 0021-9304 (Linking) VI - 61 IP - 4 DP - 2002 Sep 15 TI - Tribological investigation of oriented HDPE. PG - 634-40 AB - The possibility to control the wear properties of high-density polyethylene (HDPE) material at an early processing stage is explored. Wear measurements of cold roll-drawn HDPE with two different draw ratios were carried out for three sliding planes, each in two directions. The dependence of the wear properties on the degree and direction of orientation was investigated. The experiments were performed in a pin-on-disc machine in a dry environment. The tribo-couple consisted of HDPE plates versus a standardised diamond coated steel disc. The results show that the wear resistance of cold roll-drawn HDPE differ widely, by a factor up to 6, depending on the sliding direction relative to the drawing direction. The material has a significantly better wear resistance when the sliding direction was perpendicular to the processing direction. The best wear resistance was in the end plane and it was improved by a factor up to 3.6 when the draw ratio was increased from 2 to 4. These results indicate that molecular orientation by polymer processing is a promising method to improve the wear properties and decrease the wear debris production of HDPE. CI - Copyright 2002 Wiley Periodicals, Inc. FAU - Hoseini, Mohammed AU - Hoseini M AD - Department of Chemistry and Materials Technology, SP Swedish National Testing and Research Institute, PO Box 857, SE-50115 Boras, Sweden. mohammed.hoseini@sp.se FAU - Lausmaa, Jukka AU - Lausmaa J FAU - Boldizar, Antal AU - Boldizar A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Biomed Mater Res JT - Journal of biomedical materials research JID - 0112726 RN - 0 (Biocompatible Materials) RN - 9002-88-4 (Polyethylene) SB - IM MH - Anisotropy MH - Biocompatible Materials/*chemistry MH - Biomechanical Phenomena MH - Materials Testing MH - Microscopy, Electron, Scanning MH - Polyethylene/*chemistry MH - Prostheses and Implants MH - Surface Properties EDAT- 2002/07/13 10:00 MHDA- 2003/03/05 04:00 CRDT- 2002/07/13 10:00 PHST- 2002/07/13 10:00 [pubmed] PHST- 2003/03/05 04:00 [medline] PHST- 2002/07/13 10:00 [entrez] AID - 10.1002/jbm.10241 [doi] PST - ppublish SO - J Biomed Mater Res. 2002 Sep 15;61(4):634-40. doi: 10.1002/jbm.10241.