Polysulfone/Polyvinylidene Fluoride Composite Membrane: Effect of Coating Dope Composition on Membrane Characteristics and Performance

Kusumawati, Nita; Setiarso, Pirim; Muslim, Supari

doi:10.31788/rjc.2018.1133020

Cited by 11 publications

(17 citation statements)

References 20 publications

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“…Permeation (l/m 2 h.bar), determined by the gravimetric method. Pure water, as well as soluble metal salts and sucrose flux (Lm-2h-1), was determined using Equation 4 [11].…”

Section: ) Flux Test and Filtration Experimentmentioning

confidence: 99%

“…In previous studies, the effects of PVDF addition on the characteristics of PSf/PVDF composite membranes have been studied [7]- [11]. The results show that the physical morphology, mechanical strength also thermal dan chemical resistant of the composite membrane, are strongly influenced by the concentration of PVDF in the blending solution which migration is found to occur at a limited level however the hydrophobic membrane properties are slightly elevated.…”

Section: Introductionmentioning

confidence: 96%

“…The PEI membrane tends to have weak resistance in acidic environments while PVDF in strong alkaline. However, low wettability by polar compound due to the hydrophobic surface and low surface energy and lower heat resistance due to its lower melting point begins to limit the application of PVDF membranes to specific processes involving thermal and mechanical capabilities in the industry [7]- [11], [17]. Thus, a combination of advantages and disadvantages of PEI and PVDF becomes a potential step to resolve such limitations.…”

Section: Introductionmentioning

confidence: 99%

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Development of a New Polymer Membrane: Polyvinylidene fluoride/Polyetherimide Blend Membrane

Kusumawati

Santoso

Wibawa

et al. 2020

Int. J. Adv. Sci. Eng. Inf. Technol.

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Porous polyetherimide (PEI)/polyvinylidene fluoride (PVDF) coated flat sheet membranes with different compositions and polyethene glycol (PEG) pyrogenic additives have been prepared by non-solvent induced phase separation for the separation of metal salts and sucrose. By using non-solvent induction phase separation (NIPS), it has succeeded in preparing new members of mixed matrix PVDF membrane with (i) asymmetry pore structure, (ii) porosity 7.19%-18.93%, (iii) pore size 0.196 nm-0.453 nm and (iv) mechanical strength 4262.04-24472.57 N/m2, (vi) permeability respectively of 500.48 L/m2.h.bar for C12H22O11; 642.94 L/m2.h.bar for NaCl; 623.64 L/m2.h.bar for MgCl2; 1060.39 L/m2.h.bar for CaCl2; and 1292.85 L/m2.h.bar for CuSO4. Specifically, increasing PEI levels up to 2(wt.%) - 8 (wt.%) has reduced overall porosity and pore size, thus having a specific impact on mechanical strength, pure water permeability (PWF) and the permeability of the feed solution. The opposite phenomenon is observed when the PEI level reaches 10 (wt.%) - 14 (wt.%). Furthermore, compared to pure PEI membranes, PVDF/PEI composite membranes were observed to have a higher resistance to acids and lower to bases. This condition applies in contrast to pure PVDF membranes. Despite having moderate chemical resistance, PEI/PVDF membranes have excellent characteristics and separation performance compared to pure membranes. This demonstrates its promising potential for separation of soluble metal salts and sucrose produced by various industrial processes compared to PVDF and PEI membranes.

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“…Permeation (l/m 2 h.bar), determined by the gravimetric method. Pure water, as well as soluble metal salts and sucrose flux (Lm-2h-1), was determined using Equation 4 [11].…”

Section: ) Flux Test and Filtration Experimentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Development of a New Polymer Membrane: Polyvinylidene fluoride/Polyetherimide Blend Membrane

Kusumawati

Santoso

Wibawa

et al. 2020

Int. J. Adv. Sci. Eng. Inf. Technol.

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show abstract

“…3 For this reason, various methods are used to improve membrane performance, among them the improvement of its hydrophilicity through the addition of hydrophilic component. [4][5][6][7] The involvement of hydrophilic additive in membrane modification has been studied by a number of researchers in the past. [8][9][10][11] It is reported to have successfully improved the characteristics of the membrane when it comes to porous properties and surface hydrophilicity, a very advantageous feature in filtration.…”

Section: Introductionmentioning

confidence: 99%

Improvement of the Characteristic of Polyethersulfone Membrane by Blending With Brij of Different Molecular Weights

Wahab¹,

Muchtar²,

Mulyati³

et al. 2019

RJC

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In the fabrication of membrane via common phase inversion technique, the morphology and other basic characteristics of the resulted membrane are greatly influenced by the composition of polymer and solvent. The presence of the second chemical in the polymer solution might also change the surface property of the membrane. In this work, PES membrane in flat-sheet form is fabricated by means of NIPS method by blending three kinds of Brij with different molecular weights (Brij 58, 98, and 35) into polymer solution to enhance the hydrophilicity degree of the membrane. The effect of the additive on the hydrophilic property of the membrane is studied through the measurement of surface water contact angle. In addition, the filtration and separation performances of the membranes are examined by determining water flux and rejection in filtration experiment against humic acid. It is concluded that the optimum pure water permeability can be required by using Brij with higher molecular weight and lower the concentration. The addition of additive showed membrane modified with Brij35 has higher hydrophilicity property.

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“…This condition is induced by mechanical, thermal and chemical characteristics of excellent PSf. Regarding its chemical resistance, PSf has a wide pH range application [1] - [4]. These advantages have made PSf membranes have wide application areas, including gas and liquid separation [5], fuel cells [6], and ion exchange processes [7].…”

Section: Introductionmentioning

confidence: 99%

The Development of New Composite Polymer Membrane : Polysulfone (PSf)/polyetherimide (PEI) coated membrane

Setiarso¹,

Kusumawati²,

Santoso³

et al. 2018

Proceedings of the Seminar Nasional Kimia - National Seminar on Chemistry (SNK 2018)

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In this research, the effect of coating composition (polyetherimide (PEI)) on the physical and mechanical characteristics as well as pure water flux (PWF) of the PSf/PEI composite membranes. The physical characteristics of membranes were analyzed based on the acquisition of surface and cross section morphology, porosity and pore size of PSf/PEI coated membranes, while the mechanical characteristics of membranes were analyzed based on the membrane's ability to maintain surface and internal pore size when applied to external loads (Young's modulus). Meanwhile, the PWF is obtained from the analysis using a "dead-end" membrane reactor with an operational pressure of 1 atm separation. The results of surface and cross-sectional morphology analysis showed that the level of PSf/PEI membrane pore density increased with increasing PEI contents in the coating solution. This finding is in line with the results of porosity and pore size analysis of the membrane using dry-wet weight method which shows a decrease in porosity and pore size along with the increase in polymer coating levels applied in the PSf/PEI coated membrane manufacturing process. The decrease in porosity and pore size is closely related to the increase in mechanical strength and a decrease in PWF of the PSf/PEI composite membrane.

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Polysulfone/Polyvinylidene Fluoride Composite Membrane: Effect of Coating Dope Composition on Membrane Characteristics and Performance

Cited by 11 publications

References 20 publications

Development of a New Polymer Membrane: Polyvinylidene fluoride/Polyetherimide Blend Membrane

Development of a New Polymer Membrane: Polyvinylidene fluoride/Polyetherimide Blend Membrane

Improvement of the Characteristic of Polyethersulfone Membrane by Blending With Brij of Different Molecular Weights

The Development of New Composite Polymer Membrane : Polysulfone (PSf)/polyetherimide (PEI) coated membrane

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