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

Autor: Abraham K. Aworinde, Samson O. Adeosun, Festus A. Oyawale, Esther T. Akinlabi, Stephen A. Akinlabi
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Results in Engineering, Vol 5, Iss , Pp - (2020)
Druh dokumentu: article
ISSN: 2590-1230
DOI: 10.1016/j.rineng.2020.100098
Popis: 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 bio-fillers produced more hydrophilic PLA composites than the inorganic filler. The percentage reduction in hydrophobicity renders the developed composites more suitable for orthopaedic applications. Keywords: Melt-blending, Organic Bio-filler, Methyl Group, Hydrophobicity of PLA
Databáze: Directory of Open Access Journals