title: Hydrophilicity and antifouling property of membrane materials from cellulose acetate/polyethersulfone in DMAc.
abstract: In this study, cellulose acetate (CA) was blended with polyethersulfone (PES) to endow the ultrafiltration membrane with the improved hydrophilicity and antifouling property by using N,N-dimethylacetamide (DMAc) as the solvent. The effects of blend composition and evaporation time on the mechanical strength and pure water flux were investigated. It was found that the optimal composition of the casting solution was: 18wt% (PES), 4wt% (Polyvinylpyrrolidone K30), 3wt% (CA) and 20s (Evaporation time). The characteristics of CA-PES blend membranes were investigated through the methods of contact angle goniometer, antifouling property, compatibility, thermo gravimetric analysis and SEM. The results showed that the hydrophilicity and antifouling property of CA-PES ultrafiltration membranes were enhanced in comparison with the pure PES membranes. The CA-PES membranes exhibited semi-compatibility and good thermal stability below 270°C. This study provided a potential industrial application prospect of CA-PES membranes prepared in DMAc.
authors.affiliation: College of Engineering, Qufu Normal University, Rizhao 276826, Shandong, PR China. Electronic address: sun.zhonghua@163.com.
authors.forename: Zhonghua
authors.initials: Z
authors.lastname: Sun
authors.affiliation: College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, PR China.
authors.forename: Fushan
authors.initials: F
authors.lastname: Chen
mesh_terms: D000081:Acetamides / Q000737:chemistry*; D057219:Biofouling / Q000517:prevention & control*; D002482:Cellulose / Q000031:analogs & derivatives* / Q000737:chemistry; D057927:Hydrophobic and Hydrophilic Interactions; D055595:Mechanical Phenomena; D008567:Membranes, Artificial; D011108:Polymers / Q000737:chemistry*; D013450:Sulfones / Q000737:chemistry*; D013499:Surface Properties; D014462:Ultrafiltration; D014783:Viscosity; D014835:Volatilization; D014867:Water / Q000737:chemistry
chemical_list: D000081:Acetamides; D008567:Membranes, Artificial; D011108:Polymers; D013450:Sulfones; D014867:Water; C022840:polyether sulfone; C005062:acetylcellulose; D002482:Cellulose; C013959:dimethylacetamide
keywords: Antifouling property; Cellulose acetate; Hydrophilicity; Polyethersulfone; Ultrafiltration membrane