Abstract
The effects of filler loading and silane coupling agent on the properties of hydroxyapatite (HAp)-filled high density polyethylene (HDPE) composites have been studied. The (HAp) powder was successfully produced from tilapia scales using the spray drying process utilized to prepare the HDPE/HAp composites. The FTIR peaks for the untreated HDPE/30HAp composite corresponded to the functional groups of HDPE (C-CH3) and –CH2 and HAp (PO4−3 and O-H). The FTIR spectrum for the silane-treated composite showed that the C=O and silanol groups were eliminated, which strongly confirms the chemical interaction between the HAp fillers and the HDPE matrix. The developed composites demonstrated enhanced mechanical performance, and in particular the treated HDPE/30HAp-S composite exhibited superior tensile strength, Young’s modulus and flexural modulus of 28.26 MPa, 1272 MPa and 796 MPa, respectively. In vitro cytotoxicity analysis showed that the developed composites were non-toxic and have great potential to be used for biomedical application.
Highlights
Academic Editor: Markus GahleitnerBiocomposite materials have been used over the years in medicine and dentistry to replace and repair body parts, tissues and organs
In order to better understand the effectiveness of natural HAp extracted from fish scale, this study aims at systematically investigating the effects of different tilapia scale HAp loading and surface treatment on the mechanical and thermal properties of high density polyethylene (HDPE)/HAp composites as potential biomedical implants
The hydroxyapatite (HAp) filler with chemical formula Ca10 (PO)6 (OH)2 ) and molecular weight of 502.31 g/mol was supplied by MZ Bio Resources, Hulu Selangor Malaysia in the form of Tilapia fish scale ash obtained from thermal degradation of fish scale at Polymers 2022, 14, 251
Summary
Biocomposite materials have been used over the years in medicine and dentistry to replace and repair body parts, tissues and organs. These materials have become essential materials in the medical field since they produce no toxic reaction or allergenic symptoms as well as their non-inflammatory property [1]. Natural bone is a composite material comprising a mineral portion which includes little apatite crystals and non-stoichiometric calcium phosphate, a blend which offers exceptional mechanical resistance [2,3]. Besides enhancing the physical and mechanical strength of these materials, a handful of researchers have studied the potential of HAp in wide-ranging applications including sensors, implants scaffolds and tissue engineering [7]
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