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Anti-pollution performance and cleaning effect to different substances of PVC membrane 
Authors: ZHAO Baitian,LU Yin,ZHANG Shengjie
Units: The Marine School,Key Laboratory of Applied Marine Biotechnology of Ministry of Education,Ningbo 315211,China
KeyWords: poly(vinyl chloride); microfiltration; modified; anti-pollution performance; membrane resistance
ClassificationCode:TQ325.3
year,volume(issue):pagination: 2015,35(6):48-54

Abstract:
 Allyl polyethylene glycols(APEG)was grafted onto poly(vinyl chloride)(PVC)via atom transfer radical polymerization(ATRP)method. Nonsolvent induced phase separation(NIPS)was applied to prepare the unmodified and modified PVC microfiltration membrane. BSA, L-Glutathione, PEG-400, Trehalose Dihydrate, Glycerin, Glycerol Triacetate, 2-Ethylbutyric Acid and β-Phenethylamine were used to characterize the anti-pollution performance of PVC membrane. The polluted membrane was cleaned with water, acid or alkali, and the cleaning effect was determined by recovery rate of membrane resistance. The results show that the anti-pollution performance of modified PVC membrane to different substances has significant difference compared to unmodified membrane. The cleaning ability of water, acid or alkali to pollutants also exist difference. Therefore, through one kind of pollutant to characterize the pollution-resistant of membrane has limitation.
 

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