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Structure and mechanical performance of in situ synthesized hydroxyapatite/polyetheretherketone nanocomposite materials

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Abstract

Nano-hydroxyapatite (HA) particles were prepared by a sol–gel method and polyetheretherketone (PEEK) composite materials containing a various amount of lab-prepared HA fillers had been successfully synthesized via an in situ synthesis process. The materials structure was characterized by infrared spectroscopy, transmission electron microscopy, scanning electron microscopy, and energy dispersive X-ray spectroscopy and the mechanical performance was investigated by a tensile strength test. The tensile strength of HA/PEEK composites reaches an optimal 108 MPa at 6.1% HA content. The composites with HA content below 17.4% exhibit a plastic break mode, while a brittle break mode above 17.4%. The results exhibit that the strong bonding between hydroxyapatite fillers and PEEK matrix has been achieved. And it was proved that this strong bonding may be mainly attributed to the physical factors, such as mechanical interlock between PEEK molecules and HA surface. The study clearly demonstrates that in situ synthesized HA/PEEK composite materials have the potential for use as an alternative material for hard tissue replacement.

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Acknowledgments

This work was supported by the Technology Program of Shenzhen in China (No. SY200806260040).

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Correspondence to Luqian Weng.

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Ma, R., Weng, L., Fang, L. et al. Structure and mechanical performance of in situ synthesized hydroxyapatite/polyetheretherketone nanocomposite materials. J Sol-Gel Sci Technol 62, 52–56 (2012). https://doi.org/10.1007/s10971-012-2682-1

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  • DOI: https://doi.org/10.1007/s10971-012-2682-1

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