316L不锈钢表面抗菌双疏Ag/PFOA复合涂层的制备及其性能  

Preparation and Properties of Antibacterial Amphiphobic Ag/PFOA Composite Coating on 316L Stainless Steel Surface

作　　者：汤亮 孟瑞静 吴昊 陈兴刚 TANG Liang;MENG Ruijing;WU Hao;CHEN Xinggang(School of Materials Science and Engineering,North China University of Science and Technology,Tangshan 063210,China)

机构地区：[1]华北理工大学材料科学与工程学院,唐山063210

出　　处：《腐蚀与防护》2024年第2期69-74,共6页Corrosion & Protection

基　　金：华北理工大学大学生创新计划基金(R2020054)。

摘　　要：采用化学刻蚀法和液相沉积法在316L不锈钢表面制备了具有抗菌性的双疏Ag/PFOA复合涂层。采用X射线衍射仪、傅里叶红外光谱仪、扫描电子显微镜和接触角测量仪对复合涂层的微观形貌和化学组成进行表征,并测试了其耐磨性能和抗菌性能。结果表明:化学刻蚀后的不锈钢表面具有凹凸不平的微纳米结构;复合涂层具有抑制大肠杆菌生长的效果,能够耐受的垂直负荷为40N,水平摩擦负荷为600N;不锈钢表面覆盖复合涂层后,疏水性和疏油性都得到了增强,在模拟真实场景中循环使用15次后,复合涂层的湿润性下降较为明显,但循环使用30次后,湿润性下降速率越来越慢。The antibacterial amiphiphobic Ag/PFOA composite coating was prepared on the surface of 316Lstainless steel by chemical etching and liquid deposition.The microstructure and chemical composition of the composite coating were characterized by X-ray diffractometer,Fourier infrared spectrometer,scanning electron microscope and contact angle measuring instrument.The wear resistance and antibacterial properties of the composite coating were tested.The results show that the surface of the stainless steel after chemical etching had uneven micro-nano structure.The composite coating had the effect of inhibiting the growth of escherichia coli,and could withstand a vertical load of 40Nand a horizontal friction load of 600N.After the stainless steel surface was covered with composite coating,both the lipophobicity and the hydrophobicity were enhanced.After cyclic use of the composite coating for 15times in simulated real scene,the wettability of the composite coating decreased significantly,but after cyclic use for 30times,the wettability decreased more and more slowly.

关 键 词：316L不锈钢 双疏涂层 抗菌表面 金属防护 刻蚀处理 

分 类 号：TG178[金属学及工艺—金属表面处理]