【作者】 刘桐； 唐慧琴； 张魁； 赵杰；

【Author】 LIU Tong,TANG Hui-qing ,ZHANG Kui,ZHAO Jie (College of Physics and Electronic Information Science,Tianjin Normal University,Tianjin 300074,China)

【机构】 天津师范大学物理与电子信息学院；

【摘要】 研究了银离子注入以不锈钢为基底的TiN 膜的抗菌性及抗腐蚀性。抗菌实验表明,随着注入剂量的增加,抗菌性能提高,但是抗腐蚀性能下降。为了制备具有抗菌特性和良好耐腐蚀性的医用不锈钢,通过离子注入方法,在镀有TiN薄膜的医用不锈钢317L 上注入银离子。用振荡平板法测试了抗菌率,测试菌种为大肠杆菌;用电化学腐蚀的方法检测了薄膜在 Hank’s模拟体液中的耐腐蚀性能;测试了薄膜与基底的结合力;通过X射线光电子能谱(XPS)、X射线衍射 (XRD)和俄歇电子能谱(AES)分析研究了薄膜的结构特征和各元素的深度分布。研究结果表明抗菌能力随着银离子的注入剂量而增强,但是抗腐蚀性、膜基结合力却有相应下降。更多还原

【Abstract】 The present thesis studies the influence of Ag ion on the antibacterial and anticorrosive properties of stainless steel and stainless steel-based TiN thin film. The antibacterial experiments show:with the increase of implantation dosage, the antibacterial behaviour increases but anticorrosive behaviour decreases. In order to make medical stainless steel of good antibacterial and anticorrosive properties, Ag ion is implanted into medical stainless steel 317L with TiN film by way of ion implantation. Antibacterial rate is measured by Flat board-vibrating method, and coliform is used as the measurement bacteria; electro-chemical corrosive method is chosen to test the anticorrosive property of film in Hank’s simulated human plasma; adhesion between film and substrates is tested; structure properties of film and the depth distribution of the elements are studied by XPS, XRD and AES. The results show that: with the increase of implanted Ag ion dose, antibacterial property increases but anticorrosive property, and adhesion between film and substrates decrease accordingly.更多还原