纯钛表面微弧氧化膜的粗糙度与接触角  

Roughness and contact angles of micro-arc oxidation coating on the surface of titanium

作　　者：王磊[1] 陈建治[2] 唐建国[3] 贾暮云[4] 石玉龙[5] 闫凤英[5] 

机构地区：[1]青岛大学职工医院口腔科,山东省青岛市266071 [2]浙江中医药大学附属第二医院,浙江省新华医院口腔科,浙江省杭州市310005 [3]青岛大学纤维新材料与现代纺织国家重点实验室培育基地,山东省青岛市266071 [4]青岛大学医学院附属医院口腔科,山东省青岛市266003 [5]青岛科技大学材料科学与工程学院,山东省青岛市266042

出　　处：《中国组织工程研究与临床康复》2009年第42期8291-8294,共4页Journal of Clinical Rehabilitative Tissue Engineering Research

基　　金：青岛大学青年科研基金资助(青大科字200712041);山东省自然科学基金(Y2006F07)~~

摘　　要：目的:分析纯钛表面微弧氧化改性对表面氧化膜特性的影响。方法:通过微弧氧化技术在含一定钙磷比例的电解液中制备纯钛表面氧化膜层,进而检测纯钛表面微弧氧化膜的粗糙度和接触角。结果:微弧氧化处理后,纯钛表面生成微孔结构的氧化膜,直径1～5μm。氧化膜层中含Ti、O、Ca、P4种元素,由锐钛矿型、金红石型二氧化钛,结晶相羟基磷灰石组成;微弧氧化试样的表面粗糙度明显高于未处理纯钛试样(P<0.05),表面接触角小于未处理纯钛试样(P<0.05)。结论:经微弧氧化技术处理后,纯钛表面生成了多孔的二氧化钛膜,含羟基磷灰石。膜层表面粗糙度增大,接触角减小,有利于细胞的附着和骨组织的整合。OBJECTIVE： To analyze the influence of surface modification of pure titanium by micro-arc oxidation on surface oxidation coating features. METHODS： The oxidation coating was prepared on titanium surface by using micro-arc oxidation in electrolyte containing calcium and phosphonium at certain ratio, and the roughness and contact angles of the new oxidation coating were detected. RESULTS： Ceramic microporous coating was formed on titanium surface with micro-arc oxidation, 1-5 μm in diameter. On the surface, the coating was made from O, Ti, Ca, and P elements. The phase components of the coating included anatase, rutile and hydroxyapatite. The surface roughness of micro-arc oxidation specimens was significantly increased （P 〈 0.05）, and contact angles were significantly decreased following micro-arc oxidation （P 〈 0.05）. CONCLUSION： The oxidation coating with micropores, hydroxy-apatite, increased roughness and decreased contact angles on titanium surface formed following micro-arc oxidation, which benefits cell adherence and bone tissue integration.

关 键 词：钛 微弧氧化 粗糙度 接触角 

分 类 号：R318[医药卫生—生物医学工程]