Durable hydrophilic surface modification for PTFE hollow fiber membranes

Song, Hee‐Jung; Yu, Hongwei; Zhu, Lijing; Xue, Lixin; Wu, Dichao; Chen, Hao

doi:10.1016/j.reactfunctpolym.2017.03.010

Cited by 74 publications

(33 citation statements)

References 34 publications

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“…Antai et al [173][174][175][176][177][178][179][180][181][182][183][184][185][186][187] ) within GO was done via three different methods such as Pre-incorporation, Post-incorporation and Filter-incorporation. Metal cations used for membrane preparation used were non-toxic, environment friendly and cheap [188][189][190][191][192][193][194].…”

Section: Role Of Graphene Oxide In Polymer Nano-composite Membranesmentioning

confidence: 99%

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Zahid¹,

Rashid²,

Akram³

et al. 2018

J Membr Sci Technol

188

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During last few decades, membrane technology has emerged as an efficient technique over conventional methods due to its high removal capacity, ease in operation and cost effectiveness for wastewater treatment and production of clean water. Membrane based separations are commonly based on polymeric membranes because of their higher flexibility, easily pore forming mechanism, low cost and smaller space for installation as compared to inorganic membranes. Commonly employed membrane fabrication phase inversion method has been shortly reviewed in this article. Major limitation of membrane based separations is fouling and polymeric membranes being hydrophobic in nature are more prone to fouling. Fouling is a deposition of various colloidal particles, macromolecules (polysaccharides, proteins), salts etc. on membrane surface and within pores thus impedes membrane performance, reduces flux and results in high cost. Modification of polymeric membranes due to its tailoring ability with nanomaterials such as metal based and carbon based results in polymeric nano-composite membranes with high antifouling characteristics. Nanomaterials impart high selectivity, permeability, hydrophilicity, thermal stability, mechanical strength, and antibacterial properties to polymeric membranes via blending, coating etc. modification methods. Characterization techniques has also discussed in later section for studying morphological properties and performance of polymer nano-composite membranes. Graphical Abstract

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Section: Role Of Graphene Oxide In Polymer Nano-composite Membranesmentioning

confidence: 99%

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Zahid¹,

Rashid²,

Akram³

et al. 2018

J Membr Sci Technol

188

View full text Add to dashboard Cite

show abstract

“…Contact angle (CA) of the membrane surface before and after modification were measured by the sessile drop method (DSA25S Optical Contact Angle Tester, Germany), according to the method reported in the literature .…”

Section: Methodsmentioning

confidence: 99%

Improving the antifouling property of polypropylene hollow fiber membranes by in situ ultrasonic wave‐assisted polymerization of styrene and maleic anhydride

Shao

Wei

Luo

et al. 2018

Polymer Engineering & Sci

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For the purpose of enhancing the hydrophilicity and antifouling property, styrene‐maleic anhydride copolymer (SMA) was successfully introduced on the surface of polypropylene hollow fiber membranes via in situ ultrasonic wave‐assisted polymerization. It was shown that how to avoid the hydrolysis and esterification of anhydride groups was the key for improving the hydrophilicity and antifouling property of membranes. Some factors were studied in detail, such as solvent, concentration of solution as well as time and temperature of ultrasonic treatment. Results showed that acetone and ethanol as solvents performed different functions during the process of the polymerization, and ethanol, a polar solvent, reacted with anhydride groups to hinder the formation of SMA and improvement of antifouling property. The modified membranes (PPM1 and PPM5) exhibit both high water flux and strong antifouling capability. Besides, antifouling property of modified membranes was very stable, which proved that they can work in reality. This study supplied a new approach to fabricate highly efficient polymeric membranes applicable to wastewater purification. POLYM. ENG. SCI., 59:E51–E58, 2019. © 2018 Society of Plastics Engineers

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“…The obtained hydrophilized PTFE membrane showed an excellent anti-fouling performance to oils [11]. Also, the polymerized dopamine (PDA) and PEI deposited onto PTFE hollow fiber membrane via co-deposition endowed the membrane greatly improved hydrophilicity and water permeate fluxes [21]. In addition, the porous PTFE flat membrane has been modified into super hydrophilicity by deposition of cationic fluorocarbon surfactant in our previous work [22].…”

Section: Introductionmentioning

confidence: 93%

Evaluating the anti-fouling property of the hydrophilically modified porous PTFE membrane

Zhao¹,

Qin²,

Zhao³

et al. 2019

Desalination and Water Treatment

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a b s t r a c tThe flat sheet PTFE membrane was modified into hydrophilicity via deposition of fluorinated cationic surfactant. The anti-fouling property of the membranes was investigated using lysozyme (LYS) and humic acid (HA) as typical foulants and further evaluated by Derjaguin-Landau-Verwey-Overbeek (XDLVO) theory. The results indicated that the wettability of the PTFE membrane can be manipulated by concentration of surfactant solution, and the super hydrophilic membrane with water contact angle of 2.1° was obtained with 0.8 wt% of surfactant solution. The super hydrophilic PTFE membrane showed highest cleaning efficiency of 62.5% and better anti-fouling property. XDLVO analysis further suggested that the super hydrophilic PTFE membrane had the strong repulsion force to HA and LYS and displayed better anti-fouling property due to the highest positive total interaction energy (ΔG TOT ) value. Linearly fitting on membrane practical fouling process and XDLVO results proved the consistency of the XDLVO theory with the practical anti-fouling process. 0 0 0 W W J J J J J J

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Durable hydrophilic surface modification for PTFE hollow fiber membranes

Cited by 74 publications

References 34 publications

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Improving the antifouling property of polypropylene hollow fiber membranes by in situ ultrasonic wave‐assisted polymerization of styrene and maleic anhydride

Evaluating the anti-fouling property of the hydrophilically modified porous PTFE membrane

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