Nanomechanical and tribological behavior of hydroxyapatite reinforced ultrahigh molecular weight polyethylene nanocomposites for biomedical applications |
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| Authors: | Seyed Ali Mirsalehi Alireza Khavandi Shamsodin Mirdamadi M Reza Naimi‐Jamal Seyed Mohammad Kalantari |
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| Affiliation: | 1. Composite Laboratory, School of Materials Science and Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran;2. Center of excellence for high strength alloys technology (CEHSAT), Department of Metallurgy and Materials Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran;3. Research Laboratory of Green Organic Synthesis and Polymers, Department of Chemistry, Iran University of Science and Technology, Tehran, Iran |
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| Abstract: | A hydroxyapatite (HA) particulate reinforced ultrahigh molecular weight polyethylene (UHMWPE) nanocomposite is fabricated by internal mixer at 180°C and using of paraffin oil as a processing aid to overcome the high viscosity of melted UHMWPE. The reinforcing effects of nano‐HA are investigated on nanomechanical properties of HA/UHMWPE nanocomposites by nanoindentation and nanoscratching methods. Results show that the nanocomposite with 50 wt % nano‐HA exhibits a Young's modulus and hardness of 362.5% and 200% higher, and a friction coefficient of 38.86% lower than that of pure UHMWPE, respectively. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132, 42052. |
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| Keywords: | biomedical applications composites mechanical properties |
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