镁合金-植酸-小檗碱生物复合涂层的研究

Study on Microarc Oxidation-Physic Acid -Barbarize Composite Brocading of Magnesium Alloy

目的为了提高微弧氧化技术防护膜层的降解速度和生物活性,在纯镁超声微弧氧化膜层表面制备植酸掺杂盐酸小檗碱的复合生物涂层。方法植酸作为对照组,不同盐酸小檗碱为实验组,利用SEM、能谱、接触角测量仪等手段研究不同盐酸小檗碱添加量对复合涂层的表面的形貌、接触角、成分的变化以及耐腐蚀性影响。结果BH处理浓度越大,复合涂层表面孔洞数量越少,孔径越小。添加2g/L盐酸小檗碱制备的复合膜层综合性能最好。结论纯镁超声微弧氧化植酸-2g/L盐酸小檗碱复合膜层的耐降解性能及耐蚀性能显著提高,效果最佳。

Objective In order to improve the degradation rate and biological activity of the protective film layer of the vitamin arc oxidation technology, a composite bio-coating of physic acid-doped barbarize hydrochloride was prepared on the layer of pure magnesium ultrasonic arc oxide film. Methods Physic acid was used as the control group and different barbarizes hydrochloride was used as the experimental group. The surface morphology, contact angle and composition of the composite coating were investigated by means of SEM, energy spectrum and contact angle measuring instrument. Results the greater the concentration of BH treatment, the smaller the number of pores on the surface of the composite coating and the smaller the pore size. Conclusion the composite membrane prepared by adding 2 g/L barbarize hydrochloride has the best comprehensive performance. The degradation resistance and corrosion resistance of pure magnesium ultrasonic argon-oxidized physic acid-2g/L barbarize hydrochloride composite membrane layer are significantly improved and the effect is best.