Crystallinity of PLA/HAP nanocomposites: Effect of gamma irradiation

Poly (lactic acid) (PLA) is a linear aliphatic thermoplastic polyester. Biodegradability and bio-resorbability of this plant based-polymer has drawn many researchers attentions inrecent years. Good mechanical properties along with its biocompatibility make it suitable for biomedical applications [1]. Gamma irradiation processing of hydroxyapatite/poly Llactide composite as a biomaterial was reported by Suljovrujic et al [15]. Physiochemical changes occurred in PLLA phase during irradiation of HAP/PLLA composites, while the HAP phase remained stable. The main objective of thisresearch work is to show the effects of irradiation dose of 30 kGy on crystallinity of the PLA/HAP nanocomposites with variety of compositions