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Fabrication of magnetically responsive anti-fouling and easy-cleaning nanofiber membrane and its application for efficient oil-water emulsion separation

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Chinese Journal of Chemical Engineering 2022年第1期35卷 286-293页

作者： Yajie Wang Zhiwei Guo Yujie Yang Yanxiang Li Qingchun Guo Peilin Cui Wangliang Li CAS Key Laboratory of Green Process and Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Hebei Lansheng Biotech Co. LtdShijiazhuang 052200China International Medical Service Beijing Tiantan Hospital Affiliated to Capital Medical UniversityChina

The magnetically responsive anti-fouling nanofiber membrane(MRANM)was fabricated for efficient oilwater emulsion separation,which could be cleaned using oscillating magnetic *** was prepared by grafting superparamagnetic Fe_(3)O_(4) nanoparticles onto the surface of electrospun polyacrylonitrile nanofiber membrane(PANM).Compared with PANM,the water contact angle of MRANM decreased from 104°to 0°,indicating that the hydrophilicity of the membrane was significantly *** the emulsions of hexadecane,octane and rapeseed oil,the separation efficiency was 98.04%,96.59%and 92.67%,*** the treatments in oscillating magnetic field,the separation efficiency kept above 95%after 8 times recycling,which indicated that the MRANM had good regenerability and *** as-fabricated membrane with magnetic responsiveness facilitated an effective method for solving the membrane fouling problem during practical applications of separation high viscosity oil-water emulsion.

关键词： Superparamagnetic Nanofiber membrane Anti-fouling oil-water emulsion Regeneration

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Investigation on Relationship between Lubricating Performance and Stability of emulsion for Cold Strip Rolling

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China Petroleum Processing & Petrochemical Technology 2010年第3期12卷 54-58页

作者： Sun Jianlin Wang Yizhu La Rui Wang Bing (School of Material Science and Engineering,University of Science and Technology Beijing,Beijing 100083) School of Material Science and Engineering University of Science and Technology Beijing Beijing 100083 China

The influence of the ratio and content of emulsifiers on the stability of anion emulsions for cold strip rolling was investigated in this paper. The present study also investigated the effects of HLB （hydrophile-lipophile balance） value and emulsifier content on the stability of no-ionic emulsions. Based on the effects of different stabilities and different concentrations of emulsions on the adsorptivity and friction coefficients, good lubricating performance was obtained when the amount of the separated oil and soap （SOS） accounted for 2.5%. The wearing scar of the steel balls also indicated the improvements in tribological properties after using the emulsion. Thus, the preparation of emulsion should be regulated according to different rolling conditions.

关键词： lubrication oil-water emulsion stability lubricating performance

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