title: [A study on the mechanical properties of poly-D,L-lactic acid/hydroxyapatite compound fibers].
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.
authors.affiliation: Biomaterials and Engineering Research Center, Wuhan University of Technology, Wuhan 430070, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Wan
authors.forename: Shipu
authors.initials: S
authors.lastname: Li
authors.forename: Yuhua
authors.initials: Y
authors.lastname: Yan
authors.forename: Wengjuan
authors.initials: W
authors.lastname: Zhou
authors.forename: Li
authors.initials: L
authors.lastname: Jia
authors.forename: Jianhua
authors.initials: J
authors.lastname: Li
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry; D018786:Bone Substitutes / Q000737:chemistry*; D017886:Durapatite / Q000737:chemistry*; D019344:Lactic Acid / Q000737:chemistry*; D011091:Polyesters; D011108:Polymers / Q000737:chemistry*; D013718:Tensile Strength; D023822:Tissue Engineering / Q000379:methods
chemical_list: D001672:Biocompatible Materials; D018786:Bone Substitutes; D011091:Polyesters; D011108:Polymers; D019344:Lactic Acid; C033616:poly(lactide); D017886:Durapatite