Abstract
Poly(lactic acid) was solvent-blended and formed as thin ribbons with different weight fraction of hydroxyapatite, namely 5, 10 and 20wt%. In-vitro biodegradability of biocomposites was performed in phosphate buffer solution (PBS) at 37 degrees C. The presence of hydroxyapatite tended to increase biodegradability of poly(lactic acid) in its biocomposites. Thermal stability of biocomposites was always higher than that neat poly(lactic acid) either before and after hydrolytic degradation tests. After biodegradation tests, some micro-holes and cracks were appeared in the surface morphology of biocomposites as well as the increasing crystallinity occurred.