温度响应性Fe@PNIPAM泡沫的制备及油水分离性能研究  

Study on preparation of temperature-responsive Fe@PNIPAM foam and its oil-water separation performance

作　　者：郭丰昱 张芮[1] 李晴[1] 来婧娟 安鹏 武元鹏[1,2,3,4] 李振宇 赵春霞 向东[1] 李辉 王斌[1] GUO Fengyu;ZHANG Rui;LI Qing;LAI Jingjuan;AN Peng;WU Yuanpeng;LI Zhenyu;ZHAO Chunxia;XIANG Dong;LI Hui;WANG Bin(School of New Energy and Minerals, Southwest petroleum university, Chengdu 610500, China;CNPC Research Institute of Safety & Environment Technology, Beijing 102206, China;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest petroleum university, Chengdu 610500, China;The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan EngineeringTechnology Research Center of Basalt Fiber Composites Development and Application,Southwest Petroleum University, Chengdu 610500, China)

机构地区：[1]西南石油大学新能源与材料学院,成都610500 [2]中石油安全环保研究院,北京102206 [3]西南石油大学油气藏地质及开发工程国家重点实验室,成都610500 [4]四川省玄武岩纤维复合材料开发及应用工程技术研究中心(西南石油大学),油气田工作液功能材料研究中心,成都610500

出　　处：《功能材料》2022年第3期3100-3107,共8页Journal of Functional Materials

基　　金：石油石化污染物控制与处理国家重点实验室开放课题资助(PPC2017008);成都市国际科技合作资助项目(2017-GH02-00005-HZ);西南石油大学创新研究团队(2017CXTD01);西南石油大学第二十期大学生课外开放实验重点项目(2020KSZ05029)。

摘　　要：以泡沫Fe为基底,通过简单的一步自由基聚合法,将温敏性聚N-异丙基丙烯酰胺(PNIPAM)修饰到泡沫铁基底表面,制备了表面润湿性可控的温度响应性油水分离材料。当体系温度低于临界溶解温度(LCST)时,材料表现出超亲水性,其水接触角为0°;当体系温度高于LCST时,材料表面呈疏水性,其水接触角可达135.2°。在外界温度调控下,材料能够实现温敏型油水可控分离。同时,还兼具磁响应性能,能够用于远程磁控油水分离。分离过程中材料具有较高通量且能够实现对多种油水混合物快速高效分离,其分离效率高于98.1%。Using foam iron as the substrate,the temperature-sensitive poly-N-isopropylacrylamide(PNIPAM)was modified on the surface of the foam iron substrate by a simple one-step free radical polymerization method to prepare a temperature-responsive oil with controllable surface wettability.When the temperature of the system is lower than the critical solution temperature(LCST):the prepared material exhibits super-hydrophilicity with a water contact angle of 0°,when the temperature of the system is higher than LCST,the surface of the prepared material appears hydrophobic and the contact angle can reach high to 135.2°.The material can realize temperature-sensitive controllable separation of oil and water under the control of external temperature.At the same time,it has magnetic response properties and can be used for remote magnetic-controlled oil-water separation.In the separation process,the material has high flux and can achieves rapid and efficient separation of various oil-water mixtures,and its separation efficiency is higher than 98.1%.

关 键 词：泡沫Fe 温度响应 临界溶解温度 磁控油水分离 

分 类 号：O632[理学—高分子化学]