主催: 一般社団法人 日本機械学会
会議名: 2022年度 年次大会
開催日: 2022/09/11 - 2022/09/14
Tricalcium phosphate/poly(lactic acid) (TCP/PLA) composite is attracted the attention as a material of bone fixation device because it doesn’t require removal by reoperation after healing bone fracture. However, mechanical properties of TCP/PLA composite were low. In this study, effect of draw ratio (DR) on mechanical properties of drawn TCP/PLA composite was investigated to improve the mechanical properties. Orientation function of drawn TCP/PLA composite was investigated to clarify mechanism of changing mechanical properties by drawing. As a result, tensile strength was improved with draw ratio up to DR 2.5. Tensile strengths of drawn TCP/PLA composite up to DR 2.5 were higher than that of PLA. Elastic modulus was improved with draw ratio up to 2.0. Orientation function of α form crystal was improved with draw ratio up to 2.0. From these results, it was suggested that increase mechanical properties of drawn TCP/PLA composite due to orientation of α form crystals.