Effect of nanosized reinforcement particles on mechanical properties of high density polyethylene-hydroxyapatite composites

被引：14

作者：

Shahbazi, R. ^{[1
]}

Javadpour, J. ^{[1
]}

Khavandi, A. R. ^{[1
]}

机构：

[1] Univ Sci & Technol, Dept Mat Sci & Engn, Tehran 16844, Iran

来源：

ADVANCES IN APPLIED CERAMICS | 2006年 / 105卷 / 05期

关键词：

nanosize; polyethylene-hydroxyapatite; mechanical milling; composites; mechanical properties;

D O I：

10.1179/174367606X115922

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of nanoscaled hydroxyapatite (HA) filler particles on the mechanical properties of the high density polyethylene-hydroxyapatite (HDPE-HA) composite samples has been investigated. Nanosized HA particles with an average size in the range of 40-50 nm were synthesised by mechanical milling method. The composite samples with various amounts of nanoscaled HA particles were produced by mixing the ceramic and high density polyethylene particles using a single screw extrusion system. The results of the mechanical testing on the composite samples showed an increase in the fracture strength and the young's modulus values with increasing volume fraction of HA content in the composite samples. At the same time, there were decreases in both the fracture strain and toughness values with increasing volume fraction of the ceramic filler particles. In addition the comparison of the results obtained in this study with the mechanical properties of the commercially available composite samples (HAPEX) shows that similar mechanical properties can be reached at a much lower ceramic content, if nanoscaled HA particles are used in the fabrication of these composite biomaterials.

引用

页码：253 / 257

页数：5

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