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Prediction of the Mechanical Properties of Hydroxyapatite/Polymethyl Methacrylate/Carbon Nanotubes Nanocomposite

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Abstract:

In this work carbon nanotubes (CNTs) were used to increase the strength and toughness of the hydroxyapatite (HA) and consequently to reduce its brittleness. The combination of CNT, HA and polymethyl methacrylate (PMMA) has led to a new composite material, which has mechanical properties superior to those of conventional HA/PMMA for biomedical scaffold in tissue engineering. PMMA is a well known bone cement which is highly compatible with HA and also it can act as a functionalizing/linking material with HA. The mechanical properties of the new nanocomposite were predicted with a self-consistent computational model taking into account the structure morphology and the orientation of the CNTs. CNT reinforced HA composite is shown to be a promising coating material for high-load-bearing metal implants. The development of this new nanocomposite based on HA/PMMA and CNTs, may significantly contribute to the bond strength of the HA/PMMA metal interface and the overall mechanical properties of the HA/PMMA coating.

Keywords: BONE CEMENT; CARBON NANOTUBES; HYDROXYAPATITE; NANOCOMPOSITE

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2008.AN26

Publication date: August 1, 2008

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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