纯钛表面载骨碎补提取物涂层的制备与性能

Peng Shuhao,Li Muqin,Wang Jingyan,Tian Qinwen

RARE METAL MATERIALS AND ENGINEERING（2019）

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Abstract

为了提高纯Ti的生物活性和抗感染性,采用微弧氧化(UMAO)制备多孔涂层,并以植酸(PA)为偶联剂将骨碎补提取物(ERD)载入多孔涂层中,并分析涂层结构、形貌及性能.结果表明,随着ERD浓度的提高,纳米颗粒增多,有PO43-,P2O74-和O=P-O-生成;载药12.5 g/L的膜层的摩擦系数较低,为亲水涂层;相对于未载药涂层,载药膜层的电位提高了0.33～0.45 V,自腐蚀电流降低1个数量级;模拟体液浸泡有羟基磷灰石(HA)生成.纯钛表面通过超声微弧氧化,植酸偶联载药涂层的耐蚀性、结合力和生物活性均有提高.

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Key words

pure titanium,micro arc oxidation,rhizoma drynariae,phytic acid,bone repairing material

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