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。
Aiming at problems of the complex preparation process and high cost for superhydrophobic and superoleophilic materials, an electrodeposition method was performed to fabricate a superhydrophobic and superoleophilic surface on stainless steel mesh through a straightforward process. First, a rough surface composed of leaf-like microstructure was obtained by co- deposition of copper and nickel on stainless steel mesh. Then, the superhydrophobic and superoleophilic Cu-Ni composite coating was prepared after the immersion process in N-dodecyl mercaptan ethanol solution. The morphology and elemental analysis of the prepared micro-nano composite coating were characterized using scanning electron microscopy （SEM）, contact angle measurement, energy dispersive X-ray spectroscopy （EDS） and infrared spectroscopic analysis （FTIR）. The results show that the water contact angle and the oil contact angle of the as-prepared Cu-Ni composite coating are 155°±2° and 0% respectively. This superhydrophobic and superoleophilic Cu-Ni composite coating has an excellent oil/water separation performance for the lubricant oil. The separation efficiency can reach 98%. After 2 h continuous separation, the separation efficiency still reaches 95%. The preparation process is time-saving and low-cost, which has a great potential for large-scale industrial production.
作者
蒋美慧子
罗方
向美苏
张延宗
JIANG Mei-hui-zi;LUO Fang;XIANG Mei-su;ZHANG Yan-zong(College of Environment, Siehuan Agricultural University, Chengdu 611130;Agricultural Environmental Engineering Center of Siehuan Province, Chengdu 611130)
出处
《中国表面工程》
EI
CAS
CSCD
北大核心
2017年第6期11-17,共7页
China Surface Engineering
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)~~
关键词
电化学沉积
正十二硫醇
超疏水
超亲油
electrodeposition
N-dodecyl mercaptan
superhydrophobic
superoleophilic
