Effect of the surface property of poly(tetrafluoroethylene) support on the mechanism of polyamide active layer formation by interfacial polymerization

Chao, Wei-Chi; Huang, Yun-Hsuan; Hung, Wei‐Song; An, Quan‐Fu; Hu, Chien‐Chieh; Lee, Kueir‐Rarn; Lai, Juin‐Yih

doi:10.1039/c2sm25769f

Cited by 17 publications

(6 citation statements)

References 49 publications

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“…PVDF, PTFE, PP and others hydrophobic microporous membrane were prepared as supports need a hydrophilic modication to provide good compatibility between support and active layer in IP, due to their inherently hydrophobicity. 50,51 In supports with hydrophilic surface, more MPD aqueous solution permeated into pores. Furthermore, aer the support containing MPD aqueous solution was dried, the aqueous MPD solution meniscus was concave in pores and MPD monomer diffused more slowly out of the pores when contacting with TMC solution.…”

Section: The Effect Of the Hydrophilic And Hydrophobic Of Support On mentioning

confidence: 99%

A review: the effect of the microporous support during interfacial polymerization on the morphology and performances of a thin film composite membrane for liquid purification

Liu

Wang

et al. 2019

RSC Adv.

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Section: The Effect Of the Hydrophilic And Hydrophobic Of Support On mentioning

confidence: 99%

A review: the effect of the microporous support during interfacial polymerization on the morphology and performances of a thin film composite membrane for liquid purification

Liu

Wang

et al. 2019

RSC Adv.

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“…[94] Some other materials including poly(tetrafluoroethylene), poly(phthalazione ether nitrile ketone) (PPENK), polyimide (PI), and polyvinylidene fluoride (PVDF) have also gained attention as substitutes. [89,[95][96][97][98][99][100][101] For instance, PPENK and PI polymers are well known for their high mechanical strength, chemical resistance and thermal stability (with a relatively high glass transition temperature T g ). [98,99] The flux of PPENK-supported PA TFC membrane was enhanced by a factor of approximately 4 with almost unchanged Na 2 SO 4 rejection (~95%), when the test temperature increased from 20 °C to 80 °C (1000 ppm Na 2 SO 4 feed and 10 bar).…”

Section: Effect Of Support Materials and Microstructures On Membrane mentioning

confidence: 99%

Recent advances in polymer and polymer composite membranes for reverse and forward osmosis processes

Yan

Wang

2016

Progress in Polymer Science

381

150

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Semipermeable membranes are the core elements for membrane water desalination technologies such as commercial reverse osmosis (RO) process and emerging forward osmosis (FO) process. Structural and chemical properties of the semipermeable membranes determine water flux, salt rejection, fouling resistance, and chemical stability, which greatly impact energy consumption and costs in osmosis separation processes. In recent years, significant progress has been made in the development of high-performance polymer and polymer composite membranes for desalination applications. This paper reviews recent advances in different polymer-based RO and FO desalination membranes in terms of materials and strategies developed for improving properties and performances.

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“…19,20 Particularly, the pore morphology as well as the wetting characteristics of substrate affect the formation of the rejection layer. 21,22 As such, a number of approaches have been reported to enhance the inherent features of the substrate. [23][24][25] Among the major commonly applied strategies is via the introduction of nanomaterials into the polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

Facile purification of palygorskite and its effect on the performance of reverse osmosis thin film nanocomposite membrane

Mamah

Goh

Ismail

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND: Palygorskite (PAL) is a naturally occurring nanoclay characterized by a distinctive tubular structure and fibrous morphology, exhibiting chemical and thermal stability as well as large specific surface area. The tubular structure of PAL promotes the selective transportation of water molecules, hence can serve as an interesting candidate for liquid separation. In this work, a membrane substrate was fabricated using the purified PAL to enhance the flux of the thin film composite reverse osmosis. Purification of PAL enhances its interaction with polymer chain to further promote nanofiller dispersion and improves the hydrophilic properties. The water flux as well as salt rejection of the developed membranes was examined using a dead end filtration system. The membrane performance with respect to pure water flux and salt rejection was evaluated using reverse osmosis water and 2000 ppm sodium chloride solution at 15 bar operation pressure. RESULTS:The physico-chemical characterization evidenced the role of purified PAL (P-PAL) in increasing the number of pores and promoting the formation of finger like structure in the substrate layer. The water flux of thin film nanocomposite (TFN) containing P-PAL exhibited 114.6% and 43.1% improvement compared to that of neat and TFN membrane incorporated with pristine PAL respectively without compromising the salt rejection performance.CONCLUSIONS: This study highlights the purification of palygorskite and its effects on membrane water permeability in the field of water desalination.

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Effect of the surface property of poly(tetrafluoroethylene) support on the mechanism of polyamide active layer formation by interfacial polymerization

Cited by 17 publications

References 49 publications

A review: the effect of the microporous support during interfacial polymerization on the morphology and performances of a thin film composite membrane for liquid purification

A review: the effect of the microporous support during interfacial polymerization on the morphology and performances of a thin film composite membrane for liquid purification

Recent advances in polymer and polymer composite membranes for reverse and forward osmosis processes

Facile purification of palygorskite and its effect on the performance of reverse osmosis thin film nanocomposite membrane

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