破乳剂
接触角
乳状液
化学工程
表面张力
聚合物
材料科学
双水相体系
相(物质)
水溶液
胺气处理
废水
高分子化学
化学
有机化学
复合材料
物理
工程类
废物管理
量子力学
作者
Yu Zhang,Jiazhe Kuang,Bin Li,Yuanzhu Mi,Ying Yang,Xuening Feng
标识
DOI:10.1080/01932691.2021.1960167
摘要
In this work, a PAMAM@SiO2 demulsifier was synthesized by the reaction of a hyperbranched poly (amido amine) (PAMAM) and KH570 modified SiO2. The structure, morphology and composition of PAMAM@SiO2 were characterized by FT-IR, SEM and EDS. The effect of the concentration of PAMAM@SiO2, salinity and temperature on the demulsification performance was systematically studied. The results showed that the transmittance of aqueous phase after demulsification could reach as high as 92.1% at optimal conditions, and corresponding oil removal rate was 99.53%. Interfacial activity, three-phase contact angle, self-assembly of interfacial film and dynamic interfacial tension were investigated to explore the demulsification mechanism. Also, the aggregation process of oil droplets in emulsion was observed with a microscope. It indicates that the PAMAM@SiO2 demulsifier has a potential application in the treatment process of oily wastewater.
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