无机材料学报

• 研究论文 • 上一篇    下一篇

生物活性硅酸钙晶须的螯合剂法水热合成

黄翔; 江东亮; 谭寿洪   

  1. 中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室 上海 200050
  • 收稿日期:2001-12-28 修回日期:2002-03-08 出版日期:2003-01-20 网络出版日期:2003-01-20

Hydrothermal Synthesis of Tobermorite Fibers through Calcium Chelated Complex

HUANG Xiang; JIANG Dong-Liang; TAN Shou-Hong   

  1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China
  • Received:2001-12-28 Revised:2002-03-08 Published:2003-01-20 Online:2003-01-20

摘要: 硅酸钙用作生物材料的研究近年来引起了人们的关注,因其良好的生物活性而有望在生物医学领域得以应用.本文利用含Ca2+和SiO32-的溶液、以EDTA(乙二胺四乙酸)为螯合剂,通过在普通高压釜中200℃,5h水热反应,首次制备了直径、长度分别为0.1-1μm、40-100μm这样大尺寸的生物活性托贝莫莱石晶须,并且对托贝莫莱石晶须的形成机理进行了初步的探讨.

关键词: 托贝莫莱石晶须, 水热法, 螯合剂, 生物活性

Abstract: Due to its good bioactivity, calcium silicate is potentially a candidate in the biomedicine field. A novel method for synthesizing tobermorite fibers was developed. Tobermorite fibers can be synthesized successfully by the hydrothermal reaction at 200℃ for 5h using a Ca(II)-EDTA complex precursor. Tobermorite fibers obtained in the present work were 40-100μm in length and 0.1-1μm in diameter. The properties of tobermorite fibers were characterized by XRD, SEM techniques. And the formation mechanism was proposed.

Key words: tobermorite fibers, calcium chelated complex, hydrothermal synthesis, bioactive

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