| CaO-B2O3-2SiO2干凝胶制备及其生物模拟矿化现象 |
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| 引用本文： | 刘朗,李亚东.CaO-B2O3-2SiO2干凝胶制备及其生物模拟矿化现象[J].新技术新工艺,2009(10):104-107. |
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| 作者姓名： | 刘朗 李亚东 |
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| 作者单位： | 苏州大学材料化学化工学部无机非金属材料工程系,江苏苏州215123 |
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| 摘 要： | 采用溶胶一凝胶和常压干燥法制备了CaO-B2O3-2SiO2干凝胶。首次研究了干凝胶在37℃，初始pH=9的K2HPO40．25M水溶液中的生物模拟矿化现象，采用XRD、FTIR和SEM分析了干凝胶及其矿化产物的微观结构和形貌。研究表明，CaO-B2O3-2SiO2干凝胶具有硼硅二元复合氧化物的网络骨架，经矿化反应10d后可转变成呈交叉形式排列的片状碳酸羟基磷灰石晶体，并具有多孔状微观形貌结构。
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| 关 键 词： | CaO-B2O3-2SiO2 干凝胶 模拟矿化 碳酸羟基磷灰石 微观结构 形貌 |
Synthesis of CaO-B2O3-2SiO2 Xerogel and its Bio-simulation Mineralization Phenomenon |
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| LIU Lang,LI Yadong.Synthesis of CaO-B2O3-2SiO2 Xerogel and its Bio-simulation Mineralization Phenomenon[J].New Technology & New Process,2009(10):104-107. |
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| Authors: | LIU Lang LI Yadong |
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| Affiliation: | (Department of Inorganic and Nonmetallic Materials Engineering,College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China) |
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| Abstract: | In this paper, the CaO-B2O3-2SiO2 xerogel was synthesized by sol-gel method and ambient pressure drying. The bio-simulation mineralization phenomenon of the xerogel was firstly studied at 37 ℃ ,in initial pH ： 9 and 0. 25 M K2 HPO4 aqueous solution,the microstructures and morphologies of the xerogel and its mineralization product were investigated by XRD, FTIR and SEM. The results show that the CaO-B2O3-2SiO2 xerogel has a network skeleton of dualistic borosilicate composite oxides,and the xerogel can convert to carbonated hydroxyapatite crystals with the flake cross and porous structure after mineralization reaction for 10 days. |
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| Keywords: | CaO-B2O3-2SiO2 |
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