Preparation of nano-hydroxyapatite/chitosan hybrids

被引：8
|
作者：
Lu Xiao-Ying [1 ]
Wang Xiu-Hong [1 ]
Qu Shu-Xin [1 ]
Weng Jie [1 ]
机构：
[1] SW JiaoTong Univ, Sch Mat Sci & Engn, Minist Educ China, Key Lab Adv Technol Mat, Chengdu 610031, Peoples R China
来源：
JOURNAL OF INORGANIC MATERIALS | 2008年 / 23卷 / 02期
关键词：
hydroxyapatite; chitosan; in situ precipitation; hydrothermal treatment;
D O I：
10.3724/SP.J.1077.2008.00332
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：
In order to solve the uneven distribution of hydroxyapatite (HA) crystals in chitosan (CS) matrix and the weak bonding between HA crystals and CS molecules in HA/CS hybrids, the hydrothermal treatment technology and in situ precipitation method were employed to prepare nano-HA/CS hybrids. The obtained samples were characterized by scanning electronic microscope (SEM), Fourier Transmission Infrared Spectrometer (FT-IR), X-ray diffractometer (XRD) and Thermogravimeter (TG). The results show that the obtained hybrids prepared in the different hydrothermal condition are composed of CS crystals and low-crystallinity nano-HA crystals. And the CS and HA crystals in the hybrids have the trend of growing along C axis. Moreover, a strong bonding between the CS molecules and HA crystalline is formed in the hybrids and the bonding strength increases with increasing hydrothermal treatment temperature. When the hydrothermal treatment temperature is up to 100 degrees C, the bonding strength reaches the maximum.
引用
收藏
页码：332 / 336
页数：5
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