528 L-乳酸により界面処理したβ型リン酸三カルシウム/ポリL乳酸複合材料の力学的特性(高分子/高分子基複合材料(3),ものづくりにおける基礎研究と先端技術の融合)

概要

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In the present study, in order to improve interfacial strength between Poly(L-Lactic Acid) (PLLA) and β-tricalcium phosphate (β-TCP), R-TCP surface was treated by 6 g, 12 g and 24g of L-lactic acid solution. The amount of L-lactic acid on β-TCP surface was determined by thermal gravimetric analysis (TGA). β-TCP/PLLA compound was obtained by kneading and specimens were fabricated by hot-pressing. Compared with non-treated β-TCP/PLLA composites, tensile strength of composite of β-TCP treated using 6g L-lactic acid was reduced. On the other hand, tensile strength of composite ofβ-TCP treated using 12 g L-lactic acid increased. Interfacial treatments do not affect modulus of elasticity. β-TCP/PLLA compounds were also processed using solution-dispersion method. Since non-treated β-TCP could be dispersed in solvent, tensile strength of non-treated β-TCP/PLLA by solution-dispersion was higher than that of composite fabricated by kneading.
一般社団法人日本機械学会の論文
2010-11-27