Comparative effects of organic and inorganic bio-fillers on the hydrophobicity of polylactic acid

Aworinde, Abraham K. and Adeosun, Samson O. and Oyawale, Fetus A and Akinlabi, Esther T. and Akinlabi, Stephen A. (2020) Comparative effects of organic and inorganic bio-fillers on the hydrophobicity of polylactic acid. Results in Engineering.

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Abstract

The use of Polylactic acid (PLA) has been limited in the biomedical field because of its slow degradation profile which is traceable to its degree of hydrophobicity. In this work, 16.67 wt. % of chitosan (Ch), chitin (Ct) and titanium (Ti-6Al-2Sn-2Mo-2Cr-0.25Si) (Ti) powders weremelt blended with PLA and the resulting composites examined using Fourier Transform Infrared Spectroscopy (FTIR). Chitosan was found to reduce the hydrophobic peak due to δs(CH3) in PLA by 13.92%, chitin by 10.65% and titanium by 8.04%. Summarily, the organic biofillers produced more hydrophilic PLA composites than the inorganic filler. The percentage reduction in hydrophobicity renders the developed composites more suitable for orthopaedic applications.

Item Type:	Article
Uncontrolled Keywords:	Melt-blending Organic Bio-filler Methyl Group Hydrophobicity of PLA
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Mrs Patricia Nwokealisi
Date Deposited:	12 May 2020 08:33
Last Modified:	12 May 2020 08:33
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/13316

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