Fabrication and properties of carbon fiber-Si3N4 nanowires-hydroxyapatite/phenolic resin composites for biological applications |
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| Affiliation: | School of Materials Science and Technology, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, China University of Geosciences (Beijing), 100083, PR China;State Key Laboratory of Polymer Physics and Chemistry and CAS Key Laboratory of Engineering Plastics, Joint Laboratory of Polymer Science and Materials, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | Carbon fiber-Si3N4 nanowires-hydroxyapatite/phenolic resin (CF–Si3N4nws-HA/resin) composites were successfully fabricated by the combined methods of precursor impregnation-pyrolysis (PIP) and pulse electrochemical deposition (PED). The morphology, microstructure and element compositions of Si3N4nws and HA were characterized. The mechanical properties, biological friction performances and in-vitro bioactivity of CF-Si3N4nws-HA/resin composites were investigated. The results showed that the Si3N4nws induced the uniform growth of HA. The tensile strength of the CF-Si3N4nws-HA/resin composites increased by 41.7% compared with CF-HA/resin composites. The wear rate decreased by 85.8% compared with CF-HA/resin composites. CF-Si3N4nws-HA/resin composites showed good in-vitro bioactivity and have potential for applications in bone graft. |
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| Keywords: | Hydroxyapatite In-vitro bioactivity Carbon fiber Resin-based composites |
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