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Nanomechanical and tribological behavior of hydroxyapatite reinforced ultrahigh molecular weight polyethylene nanocomposites for biomedical applications

被引：48
|
作者：
Mirsalehi, Seyed Ali [1 ]
Khavandi, Alireza [1 ]
Mirdamadi, Shamsodin [2 ]
Naimi-Jamal, M. Reza [3 ]
Kalantari, Seyed Mohammad [1 ]
机构：
[1] Iran Univ Sci & Technol, Sch Mat Sci & Engn, Composite Lab, Tehran 1684613114, Iran
[2] Iran Univ Sci & Technol, Dept Met & Mat Engn, CEHSAT, Tehran 1684613114, Iran
[3] Iran Univ Sci & Technol, Dept Chem, Res Lab Green Organ Synth & Polymers, Tehran 1684613114, Iran
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2015年 / 132卷 / 23期
关键词：
biomedical applications; composites; mechanical properties; MECHANICAL-PROPERTIES; ELASTIC-MODULUS; STATIC FRICTION; TRABECULAR BONE; NANOINDENTATION; INDENTATION; COMPOSITES; HARDNESS; TISSUE; REPLACEMENT;
D O I：
10.1002/app.42052
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A hydroxyapatite (HA) particulate reinforced ultrahigh molecular weight polyethylene (UHMWPE) nanocomposite is fabricated by internal mixer at 180 degrees 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. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42052.
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页数：11
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