J0401-2-5 界面制御した短繊維状HAp/PLLA複合材料の変形・破壊特性評価(生体材料およびその表面改質材(2))

概要

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The hydroxyapatite (HAp)/poly-L-lactic acid (PLLA) composite is one of the most promising candidates for the scaffold material in the novel bone regeneration technology, owing to the osteoconductivity of HAp and the biodegradability of PLLA. In this study, the enhancement of deformation and fracture properties by interface control was tried for composite materials composed of PLLA and HAp-short-fibers (HAp-f), which have higher stress-transfer ability. Here, HAp-f/PLLA composites were prepared by precipitation and following melt-pressing. Tensile tests were carried out in order to evaluate the effect of interface control on deformation and fracture properties of HAp-f/PLLA composites. In addition, the mechanism of change in deformation and fracture properties by interface control was discussed from the mesoscopic structural viewpoint.
社団法人日本機械学会の論文
2009-09-12