| 改进酸碱联合处理法制备钛基羟基磷灰石活性涂层(英文) |
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| 引用本文： | 杨辉,肖兵娟.改进酸碱联合处理法制备钛基羟基磷灰石活性涂层(英文)[J].硅酸盐学报,2009,37(3). |
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| 作者姓名： | 杨辉 肖兵娟 |
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| 作者单位： | 陕西科技大学生命科学与工程学院,西安,710021 |
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| 基金项目： | 陕西省自然科学基金，陕西省西安市科技计局工业攻关项目，陕西科技大学科技团资助项目 |
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| 摘 要： | 为了制备理想的钛基羟基磷灰石(hydroxyapatite,HA)生物活性涂层,对钛合金表面分别采用酸处理、碱处理和酸碱联合处理,经过预钙化和热处理后,于模拟体液中进行HA沉积试验.采用X射线粉末衍射仪分析HA涂层的化学组成,以扫描电镜观察所得涂层的表面形态.结果表明:酸碱联合处理法是理想的钛合金表面处理法,所得表面呈多孔状,表面粗糙,对HA涂层沉积和结合强度的改善极为有利;模拟体液法所得涂层主要由HA组成,沉积物为云团状或球状;与相关文献比较,涂层HA含量高,没有裂纹,并且在钛基金属表面形成了片状晶体,均匀覆盖于金属表面,球状颗粒间有空隙存在,有利于新骨形成和牢固的结合.
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| 关 键 词： | 钛:生物活性 生物活化技术 酸碱联合处理法 预钙化 |
PREPARATION OF BIOACTIVE HYDROXYAPATITE COATING ON TITANIUM ALLOY SUBSTRATE WITH AN IMPROVED ACID-ALKALI-COMBINATION METHOD |
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| YANG Hui,XIAO Bingjuan.PREPARATION OF BIOACTIVE HYDROXYAPATITE COATING ON TITANIUM ALLOY SUBSTRATE WITH AN IMPROVED ACID-ALKALI-COMBINATION METHOD[J].Journal of The Chinese Ceramic Society,2009,37(3). |
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| Authors: | YANG Hui XIAO Bingjuan |
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| Affiliation: | College of Life Science & Engineering;Shaanxi University of Science & Technology;Xi'an 710021;China |
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| Abstract: | In order to prepare bioactive hydroxyapatite(Ca10(PO4)6(OH)2,HA) coating with ideal bioactivity,the surface of titanium alloy was treated with acidity,alkalinity and their combination.After precalcification,the treated titanium alloy plates were immersed in simulated body fluid(SBF) to form HA coating on their surface,and then heat-treated.The chemical composition of the coating was analyzed by an X-ray diffraction(XRD) and the morphology was observed by a scanning electron microscope(SEM).The results indic... |
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| Keywords: | titanium bioactivity bioactivate processes acid-alkali-combination method precalcification |
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