Authors: J Suwanprateeb F Thammarakcharoen V Wongsuvan W Chokevivat
Publish Date: 2011/08/28
Volume: 19, Issue: 5, Pages: 623-632
Abstract
In this study three dimensional printing 3DP coupled with heat treatment was investigated as a new technique for fabrication of bone implant An influence of using different content of polyethylene 060–080 w/w in the raw material formulation upon the microstructure density porosity shrinkage and tensile properties of porous high density polyethylene structure was investigated It was found that the relationship between structure and properties was strongly influenced by the interplay between polyethylene content and heat treatment steps This heat treatment process could increase the properties of porous high density polyethylene significantly over the asfabricated 3DP sample without destroying porous structure Porous high density polyethylene bodies having a porosity ranging from 223–497 and pore diameters of 1326–1362 microns with tensile strength up to approximately 4 MPa which was comparable to commercial product could be successfully prepared in this study Biocompatibility of selected formulation 070 w/w indicated that the prepared structure was not toxic and could support the osteoblast cell proliferationThis work was supported by a grant from Cluster and Program Management Office CPMO National Science and Technology Development Agency Authors would like to thank S Veeranondha National Center for Genetic Engineering and Biotechnology for cell culture and Dr J T H Pearce MTEC for help in editing
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