超疏水超亲油Cu-Ni复合镀层的制备及油水分离应用

发布时间：2018-05-13 03:31

本文选题：电化学沉积 + 正十二硫醇　；参考：《中国表面工程》2017年06期

【摘要】：针对目前超疏水超亲油表面制备工艺复杂、成本高等问题,采用工艺简单、可控性强的电化学沉积法制备出不锈钢网基底超疏水超亲油表面。通过在不锈钢网表面进行铜镍共沉积,得到一种叶片状的微纳米级粗糙结构,再利用正十二硫醇乙醇溶液对镀层进行表面修饰,最终获得超疏水超亲油Cu-Ni复合镀层。利用扫描电子显微镜(SEM)、接触角测试仪、X射线能谱仪(EDS)、傅里叶变换红外光谱仪(FT-IR)等对镀层表面微观形貌、浸润性以及化学元素组成进行表征分析。结果显示,制备的Cu-Ni复合镀层水接触角为155°±2°,油接触角为0°。对润滑油油水分离效率高达98%,且连续分离2 h后,分离效率仍高于95%,表现出稳定高效的油水分离性能。该制备方法耗时短、成本低,有潜力应用于规模化工业生产。
[Abstract]:In order to solve the problems of complex and high cost preparation of superhydrophobic and super-oil-lipophilic surface, a simple and controllable electrochemical deposition method was used to prepare the super-hydrophobic and super-oil-lipophilic surface of stainless steel mesh substrate. By codeposition of copper and nickel on the surface of stainless steel mesh, a kind of micro- and nanoscale rough structure was obtained, and then the surface of the coating was modified with n-dodecanethanol solution. Finally, the superhydrophobic super-oil-lipophilic Cu-Ni composite coating was obtained. Scanning electron microscope (SEM), contact angle tester (EDS) and Fourier transform infrared spectroscopy (FTIR) were used to characterize the microstructure, wettability and chemical element composition of the coating. The results show that the water contact angle and oil contact angle of Cu-Ni composite coating are 155 掳卤2 掳and 0 掳respectively. The oil and water separation efficiency of lubricating oil is as high as 98%, and the separation efficiency is still higher than that of 95% after continuous separation for 2 h, showing a stable and efficient oil-water separation performance. The method has the advantages of short time consuming, low cost and potential application in large-scale industrial production.
【作者单位】：四川农业大学环境学院;四川省农村环境保护工程技术中心;
【基金】：四川省科学技术厅资助项目(2017JZ0021,2017SZ0039) 四川省教育厅资助项目(17ZA0298) 国家级大学生创新创业训练计划(201610626027)~~
【分类号】：TQ153

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