Physicomechanical properties of nanobiocomposite composed of polylactic acid and biogenic nano hydroxyapatite

Bano, N. and Jikan, S.S. and Basri, H. and Adzila, S. and Badarulzaman, N.A. (2019) Physicomechanical properties of nanobiocomposite composed of polylactic acid and biogenic nano hydroxyapatite. The International Journal of Integrated Engineering, 11 (1). pp. 283-289. ISSN 2229-838X

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Abstract

In the current paper, nanobiocomposite consisting of polylactic acid (biodegradable) (PLA) and nanohydroxyapatite (bioactive) (n-HAP) extracted from bovine bone was fabricated through melt mixing and injection moulding technique for biomedical applications. Partially biogenic nanohydroxyapatite was obtained from bovine bone by hydrothermal method and calcination treatment without using of any chemicals/solvents. Physicomechanical properties of neat-PLA and PLA/n-HAP nanobiocomposite were evaluated using X-ray diffraction (XRD), universal testing machine (UTM) and scanning electron microscopy (SEM). XRD result showed that the intensity of n-HAP peaks increased in the nanobiocomposite as n-HAP-900 loading increased. Tensile strength decreased with increasing the n-HAP-900 loading from 56.78 to 48.25 MPa due to poor interfacial adhesion between neat-PLA and n-HAP. PLA/n-HAP with 1% loading exhibits tensile strength potential for bone implant application and can be promising biomedical materials for orthopedic applications.

Item Type:	Article
Uncontrolled Keywords:	Bovine bone; Nanohydroxyapatite; Polylactic acid; nanobiocomposite
Subjects:	R Medicine > RD Surgery > RD701-811 Orthopedic surgery
Divisions:	Faculty of Applied Science and Technology > Department of Postgraduate
Depositing User:	Miss Afiqah Faiqah Mohd Hafiz
Date Deposited:	09 Dec 2021 08:01
Last Modified:	09 Dec 2021 08:01
URI:	http://eprints.uthm.edu.my/id/eprint/4635

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