Highly selective PDMS-PVDF composite membrane with hydrophobic crosslinking series for isopropanol-1,5 pentanediol pervaporation

Chaudhari, Shivshankar; Shin, HyeonTae; Cho, Kie Yong; Shon, MinYoung; Kwon, HyukTaek; Jo, Sewook; Nam, Soohyun; Park, YouIn

doi:10.1016/j.jiec.2022.07.004

Cited by 7 publications

(3 citation statements)

References 38 publications

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“…Dimethyl sulfoxide (DMSO), hydrochloric acid (HCl, 36.0%), ECH (99.0%), and IPA were purchased from Duksan Ltd. (Ansan, Republic of Korea). Details of the PVDF support preparation and characterization are provided in our previous study [ 17 ].…”

Section: Experimental Methodsmentioning

confidence: 99%

“…PV separation of the ECH/IPA/water mixture was performed at various mixing ratios and feed temperatures (40–60 °C). The PV apparatus described in our earlier study [ 17 ] was used to conduct the PV tests in the laboratory. With an effective area of 0.001943 m 2 , the membrane was fitted to a stainless steel membrane cell with an effective area of 0.001943 m 2 .…”

Section: Experimental Methodsmentioning

confidence: 99%

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Augmenting the Efficacy of a Polyvinyl Alcohol Selective Layer Coated on Polyvinylidene Fluoride Support Membranes with Kaolinite Introduction for Improved Pervaporation Dehydration of Epichlorohydrin/Isopropanol/Water Ternary Systems

Chaudhari,

Jeong,

Shin

et al. 2024

Polymers

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Composite membranes with a polyvinyl alcohol (PVA) selective layer composed of well-dispersed hydrophilic kaolinite particles coated on a polyvinylidene fluoride (PVDF) support were developed. They were applied to the pervaporation dehydration of the industrially important epichlorohydrin (ECH)/isopropanol (IPA)/water ternary mixture. In comparison with raw kaolinite (RK), hydrophilic kaolinite (HK) enhanced the mechanical properties, hydrophilicity, and thermal stability of the PVA selective layer, as confirmed by universal testing, the contact angle, and TGA analyses, respectively. The pervaporation results revealed that the addition of HK particles significantly enhanced the separation factor (3-fold). Only a marginal reduction in flux was observed with ECH/IPA/water, 50/30/20 (w/w %) at 40 °C. An HK particle concentration of 4 wt.% with respect to PVA delivered the highest flux performance of 0.86 kg/m2h and achieved a separation factor of 116. The PVA–kaolinite composite membrane exhibited pronounced resistance to the ECH-containing feed, demonstrating a sustained flux and separation factor throughout an extended pervaporation stability test lasting 250 h.

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Section: Experimental Methodsmentioning

confidence: 99%

Section: Experimental Methodsmentioning

confidence: 99%

Augmenting the Efficacy of a Polyvinyl Alcohol Selective Layer Coated on Polyvinylidene Fluoride Support Membranes with Kaolinite Introduction for Improved Pervaporation Dehydration of Epichlorohydrin/Isopropanol/Water Ternary Systems

Chaudhari,

Jeong,

Shin

et al. 2024

Polymers

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“…27,28 PVDF coating enhances mechanical strength and electrolyte affinity, improving electrolyte uptakes and ionic conductivity. 29–32 Nevertheless, polyolefin separators coated with conventional PVDF show unsatisfactory thermal stability. 24 Polyimides and polyamides are known to increase thermal stability, but their infusibility and insolubility require complex synthesis conditions, which increase the cost.…”

Section: Introductionmentioning

confidence: 99%

Fluorine-rich modification of self-extinguishable lithium-ion battery separators using cross-linking networks of chemically functionalized PVDF terpolymers for highly enhanced electrolyte affinity and thermal–mechanical stability

Park,

Kwon,

Yun

et al. 2024

J. Mater. Chem. A

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Polymer-modified cement-based coating containing organic-inorganic silicons modified polyacrylate emulsion: Performance and mechanisms

Wu,

Jiang,

et al. 2024

Construction and Building Materials

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Highly selective PDMS-PVDF composite membrane with hydrophobic crosslinking series for isopropanol-1,5 pentanediol pervaporation

Cited by 7 publications

References 38 publications

Augmenting the Efficacy of a Polyvinyl Alcohol Selective Layer Coated on Polyvinylidene Fluoride Support Membranes with Kaolinite Introduction for Improved Pervaporation Dehydration of Epichlorohydrin/Isopropanol/Water Ternary Systems

Augmenting the Efficacy of a Polyvinyl Alcohol Selective Layer Coated on Polyvinylidene Fluoride Support Membranes with Kaolinite Introduction for Improved Pervaporation Dehydration of Epichlorohydrin/Isopropanol/Water Ternary Systems

Fluorine-rich modification of self-extinguishable lithium-ion battery separators using cross-linking networks of chemically functionalized PVDF terpolymers for highly enhanced electrolyte affinity and thermal–mechanical stability

Polymer-modified cement-based coating containing organic-inorganic silicons modified polyacrylate emulsion: Performance and mechanisms

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