首页|期刊导航|高技术通讯（英文版）|Preparation and characterization of chitosan/nano-hydroxyapatite composite used as bone substitute materials
高技术通讯（英文版）2007，Vol.13Issue(1)：31-35,5.
Preparation and characterization of chitosan/nano-hydroxyapatite composite used as bone substitute materials
Preparation and characterization of chitosan/nano-hydroxyapatite composite used as bone substitute materials
摘要
Abstract
Chitosan/nano-hydroxyapatite composites with different weight ratios were prepared through a co-precipitation method using Ca(OH)2, H3PO4 and chitosan as starting materials. The properties of these composites were characterized by means of TEM, IR, XRD, TGA, bum-out tests and universal matertial testing machine. The results showed that the HA synthesized here was poorly crystalline carbonated nanometer crystals and dispersed uniformly in chitosan phase and there was no phase-separation between the two phases. The addition of n-HA resulted in a decrease of decomposing temperature of chitosan. Because of the interactions between chitosan and n-HA, the mechanical properties of these composites were improved, and the maximum value of the compressive strength was measured to be about 120MPa corresponding to the chitosan/n-HA composite with a weight ratio of 30/70.关键词
chitosan/nano-hydroxyapatite/composite/co-precipitationKey words
chitosan/nano-hydroxyapatite/composite/co-precipitation分类
医药卫生引用本文复制引用
Zhang Li,Li Yubao,Zhou Gang,Wu Lan,Mu Yuanhua,Yang Zheng..Preparation and characterization of chitosan/nano-hydroxyapatite composite used as bone substitute materials[J].高技术通讯（英文版）,2007,13(1):31-35,5.基金项目
Supported hy the China 973 Funds(China-Netherlands Co-project)(2004CB720604). （China-Netherlands Co-project）
