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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。
Plasma spraying technology is used to construct the micro-nano multi-level structure tantalum coating on the surface of medical pure titanium substrate. The morphology, chemical composition and phase composition of the nanostructured multi-structure tantalum coating were analyzed by SEM, EDS and XRD. The bond strength of the coating to the substrate was evaluated according to ASTM C633-79. The bovine serum albumin (BSA) Protein Adsorption Behavior of Titanium - Based Tantalum Coatings and Medical Pure Titanium Controlled Surfaces. The results show that the titanium-based tantalum coating prepared at a spraying distance of 110 mm and a spraying power of 30 k W has the characteristic of typical micro-nano multi-level structure with good bonding strength with matrix and high relative content of Ta. The protein adsorption experiments show that titanium Tantalum coating surface protein adsorption amount higher than the medical titanium control, with good protein adsorption capacity.