界面聚合制备Janus膜及油水分离性能研究  

Study on Preparation of Janus Membrane by Interfacial Polymerization andIts Oil-Water Separation Performance

作　　者：李增强 岩征 桂召龙[2] 刘新亮[3] 王明[4] LI Zengqiang;YAN Zheng;GUI Zhaolong;LIU Xinliang;WANG Ming(Sinopec Shengli Oilfield BranchSafety and Environmental Quality Management Department,Dongying Shandong 257000,China;Sinopec Petroleum Engineering Design Co.,Ltd.,Dongying Shandong 257000,China;Advanced Chemical Engineering and Energy Materials Research Center,China University of Petroleum(East China),Qingdao Shandong 266580,China;State Key Laboratory of Heavy Oil Processing,China University of Petroleum(East China),Qingdao Shandong 266580,China)

机构地区：[1]中国石化胜利油田分公司安全环保质量管理部,山东东营257000 [2]中石化石油工程设计有限公司,山东东营257000 [3]中国石油大学(华东)高端化工与能源材料研究中心,山东青岛266580 [4]中国石油大学(华东)重质油国家重点实验室,山东青岛266580

出　　处：《当代化工》2025年第1期9-15,共7页Contemporary Chemical Industry

基　　金：国家自然科学基金项目(项目编号:21908247)。

摘　　要：由于生活和工业生产的含油废水、污水不断增多,海上原油泄漏事故频繁发生,处理污染水体的油水混合物迫在眉睫。膜分离技术可实现工业级别的油水分离要求,现已成为油水分离领域的研究热点。以十八烷基三氯硅烷(OTS)作为表面改性剂,在建立两层海藻酸钠(SA)涂层的亲水聚酰胺微滤膜上进行界面聚合改性反应,从而制备亲水-疏水双面Janus膜。通过AFM、接触角、XPS等进行膜表面形貌、化学结构表征,并将膜应用于油水分离截留实验。结果表明:SA涂层具有较强锁水性,可促进表面改性均匀。OTS表面改性达到接触角大于150°超疏水标准,改性膜对不同油水乳液截留率达到99%以上。Due to the increase of oil-containing wastewater and sewage in domestic and industrial production,frequent occurrence of offshore crude oil leakage accidents,it is urgent to treat oil-water mixture in polluted water bodies.Membrane separation technology can realize the requirements of industrial-level oil and water separation and has become a research hotspot in the field of oil and water separation.In this paper,octadecyltrichlosilane(OTS)was used as a surface modifier to perform interfacial polymerization modification on a hydrophilic polyamide microfiltration membrane with two layers of sodium alginate(SA)coating,to prepare a hydrophilic and hydrophobic double-sided Janus membrane.The surface morphology and chemical structure of the membrane were characterized by AFM,contact angle,XPS,etc.,and the membrane was applied to the oil-water separation and retention experiment.The results showed that SA coating had strong water-locking properties and could promote uniform surface modification.The surface modification of OTS reached the super hydrophobic standard with contact angle greater than 150°,and the retention rate of the modified film for different oil-water emulsions wasmore than 99%.

关 键 词：Janus膜 十八烷基三氯硅烷 疏水改性 油水分离 

分 类 号：TQ028.3[化学工程]