聚乙烯油水分离膜的制备及表征  

Preparation and Characterization of Polyethylene Oil-Water Separation Membrane

作　　者：石素宇[1] 张晨辉 王利珂 刘新月 董昕辰 Shi Suyu;Zhang Chenhui;Wang Like;Liu Xinyue;Dong Xinchen(School of Material Engineering,Henan University of Engineering,Zhengzhou,Henan,450007)

机构地区：[1]河南工程学院材料工程学院,河南郑州450007

出　　处：《现代塑料加工应用》2024年第4期21-24,共4页Modern Plastics Processing and Applications

基　　金：河南省科技攻关项目(212102210287);河南工程学院横向课题(HKJ2024042)。

摘　　要：线型低密度聚乙烯(LLDPE)与聚氧乙烯(PEO)以不同质量比混合,通过热压成型技术制备了LLDPE/PEO膜,利用超声沥滤工艺除去PEO,实现多孔结构,再采用热压印技术在膜表面构筑微结构制备LLDPE高效油水分离膜。结果表明:LLDPE/PEO最佳质量比为40/60;超声沥滤的时间为6 h;LLDPE油水分离膜能快速选择性吸附二氯甲烷和环己烷等油剂,对环己烷、花生油和N,N-二甲基甲酰胺的饱和吸附量约为150%~180%;油水分离膜对二氯甲烷/水混合物的分离效率为99.9%。Linear low-density polyethylene(LLDPE)and polyethylene oxide(PEO)were blended at different mass ratios,and the LLDPE/PEO membrane was prapared by hot pressing technology.The PEO was removed by ultrasonic leaching process to achieve porous structure,and then the high-efficiency oil-water separation LLDPE membrane was prepared by hot embossing technology to construct micro structure on the surface.The results show that the optimal mass ratio of LLDPE/PEO is 40/60;the time of ultrasonic leaching is 6 h.The LLDPE oil-water separation membrane can quickly and selectively adsorb oil agents such as dichloromethane and cyclohexane,and the saturation adsorption capacity of cyclohexane,peanut oil and N,N-dimethylformamide is about 150%~180%.The separation efficiency of the oil-water separation membrane for the dichloromethane/water mixture is 99.9%.

关 键 词：聚乙烯 超声沥滤 热压印 油水分离膜 

分 类 号：TQ051.893[化学工程] TQ325.12