文摘采用等离子喷涂技术在医用纯钛基体表面构建出微纳米多级结构钽涂层。利用SEM、EDS和XRD分析微纳米多结构钽涂层的形貌、化学组成和物相组成,并根据ASTM C633-79评价涂层与基底的结合强度;采用牛血清蛋白(BSA)对比研究了钛基钽涂层与医用纯钛对照样表面的蛋白吸附行为。结果表明,在喷涂距离为110 mm、喷涂功率为30 k W时制备的钛基钽涂层具有典型微纳米多级结构特征,且与基体结合强度好、Ta相对含量高;蛋白吸附实验表明钛基钽涂层表面蛋白吸附量均高于医用纯钛对照样,具有良好的蛋白吸附能力。
基金supported by the National High Technology Research and Development Program of China(2015AA033502)the National Natural Science Foundation of China(51372087,51232002 and 51541201)+3 种基金the Science and Technology Planning Project of Guangdong Province,China(2014A010105048)the Natural Science Foundation of Guangdong Province(2015A030313493 and 2016A030308014)the State Key Laboratory for Mechanical Behavior of Materials,China(20141607)the Technological Projects of Guangzhou,China(201604020110)