A study on the mechanical properties of poly-D,L-lactic acid/hydroxyapatite compound fibers.
- Author:
Tao WAN
1
;
Shipu LI
;
Yuhua YAN
;
Wengjuan ZHOU
;
Li JIA
;
Jianhua LI
Author Information
1. Biomaterials and Engineering Research Center, Wuhan University of Technology, Wuhan 430070, China.
- Publication Type:Journal Article
- MeSH:
Biocompatible Materials;
chemistry;
Bone Substitutes;
chemistry;
Durapatite;
chemistry;
Lactic Acid;
chemistry;
Polyesters;
Polymers;
chemistry;
Tensile Strength;
Tissue Engineering;
methods
- From:
Journal of Biomedical Engineering
2006;23(2):375-378
- CountryChina
- Language:Chinese
-
Abstract:
The PDLLA/HA compound fibers with excellent properties could be obtained by melt-spinning. This study inquired about the mechanical properties, change rule and influencing factors. The results showed that the composites fibers of mechanical properties were good in the PDLLA(molecular weight 120,000) to which were added the 4-20 microm HA particles. In the matrix of PDLLA with accretion (10%) of HA particles, the tensile strength of the compound fibers was the highest, compared with the others. The tensile strength of the compound fibers of PDLLA (molecular weight 20,000-300,000) was high. The tensile strength of the compound fibers decreased with the increase of the fiber diameter, and the PDLLA/HA fibers 40-60 micrometers in diameter had the highest elongation at break.
