scholarly journals Fabrication of Tween-20 coated PVDF membranes for wastewater treatment: optimization of preparation parameters, removal and membrane fouling control performance

RSC Advances ◽  
2019 ◽  
Vol 9 (35) ◽  
pp. 20035-20043 ◽  
Author(s):  
Daoji Wu ◽  
Weiwei Zhou ◽  
Xiaoxiang Cheng ◽  
Congwei Luo ◽  
Peijie Li ◽  
...  
Keyword(s):  
Membrane Fouling ◽  
Vinylidene Fluoride ◽  
Tween 20 ◽  
Treatment Optimization ◽  
Sorbitan Monolaurate ◽  
Coating Agent ◽  
Hydrophilic Modification ◽  
Fouling Control ◽  
Poly Vinylidene Fluoride ◽  
Microfiltration Membranes

In the present study, polyoxyethylene (20) sorbitan monolaurate (Tween-20) was employed as a surface coating agent for hydrophilic modification of poly(vinylidene fluoride) microfiltration membranes.

Microfiltration membranes prepared from acryl amide grafted poly(vinylidene fluoride) powder and their pH sensitive behaviour

2010 ◽  
Vol 362 (1-2) ◽  
pp. 298-305 ◽  
Author(s):  
Xuanxuan Yang ◽  
Bo Deng ◽  
Zhongying Liu ◽  
Liuqing Shi ◽  
Xiaokai Bian ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Ph Sensitive ◽  
Poly Vinylidene Fluoride ◽  
Microfiltration Membranes

scholarly journals Hydrophilic modification of poly(vinylidene fluoride) ultrafiltration membranes by surface UV photo-grafting with N,N′-methylene-bisacrylamide as monomer and Ce(IV) as initiator

2015 ◽  
Vol 6 (2) ◽  
pp. 280-289
Author(s):  
Baoli Shi ◽  
Zheng Li ◽  
Xing Su
Keyword(s):  
Vinylidene Fluoride ◽  
Membrane Surface ◽  
Ultrafiltration Membranes ◽  
Water Contact ◽  
Pvdf Membrane ◽  
Hydrophilic Modification ◽  
Poly Vinylidene Fluoride ◽  
Modified Membrane ◽  
Porosity Measurements ◽  
Pure Pvdf

A UV photo-grafting method was utilised to enhance the hydrophilicity and anti-fouling property of self-made poly(vinylidene fluoride) (PVDF) ultrafiltration membranes. N,N′-methylene-bisacrylamide (MBAA) was used as monomer and Ce(IV) was used as initiator to obtain balance between grafting treatment consumption and enhanced performance. MBAA could be grafted onto the surface of pure PVDF membranes through a water-phase grafting method under UV photoradiation. When the MBAA concentration was 0.07 mol/L, the Ce(IV) concentration was 0.04 mol/L, and the irradiation duration was 3 min, the membrane surface was grafted with a sufficient amount of monomer under a UV photoradiation intensity of 5.0 mW/cm2. The water contact angle on the surface of the modified membrane decreased by approximately 16°, and flux recovery increased by approximately 40% compared with the pure PVDF membrane when treating river water. For bovine serum albumin rejection and porosity measurements no significant changes were observed between pure PVDF and graft-treated membranes. The enhanced performance of the modified membrane in this work was moderate, but the UV irradiation duration (3 min) was short. The integrative effects of UV modification in this work were satisfactory when both irradiation duration and enhanced performance were considered.

Preparation of the antifouling microfiltration membranes from poly(N,N-dimethylacrylamide) grafted poly(vinylidene fluoride) (PVDF) powder

2011 ◽  
Vol 21 (32) ◽  
pp. 11908 ◽  
Author(s):  
Xuanxuan Yang ◽  
Bowu Zhang ◽  
Zhongying Liu ◽  
Bo Deng ◽  
Ming Yu ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride ◽  
Microfiltration Membranes
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