Effect of porous structure on mechanical properties of C/PLA/nano-HA composites scaffold

被引：1
|
作者：
廖晓玲 [1 ,2 ]
徐文峰 [3 ]
王远亮 [1 ]
贾碧 [2 ]
周冠瑜 [2 ]
机构：
[1] College of Bioengineering,Chongqing University
[2] College of Metallurgical and Materials Engineering,Chongqing University of Science and Technology
[3] College of Chemistry and Environment Engineering,Chongqing University of Arts and Sciences
来源：
Transactions of Nonferrous Metals Society of China | 2009年 / 19卷 / S3期
基金：
中国国家自然科学基金;
关键词：
porous structure; mechanical properties; C/PLA/nano-HA composite;
D O I：
暂无
中图分类号：
TB33 [复合材料];
学科分类号：
0805 ; 080502 ;
摘要：
Nonporous and porous C/PLA/nano-HA composites were fabricated by the process of solvent blending and freeze-drying technique, and the effect of porous structure on the mechanical properties of C/PLA/nano-HA composites scaffold was investigated and analyzed. The results show that the effects of porous structure on the bending strength, modulus and curves of stress and strain were obvious. Compared with nonporous sample, the curves of stress and strain of porous sample show more rough, and alternative phenomenon of stress increase and stress relaxation appears. It is strongly suggested that the fracture model of C/PLA/nano-HA composites scaffold transforms from the local to global load due to the porous structure.
引用
收藏
页码：748 / 751
页数：4
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