Preparation and characterization of polyvinyl acetate/zeolite 4A mixed matrix membrane for gas separation

Ahmad, Jamal; Hägg, May‐Britt

doi:10.1016/j.memsci.2012.09.036

Cited by 87 publications

(49 citation statements)

References 63 publications

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“…No voids were observed in cross‐section of blend membranes which showed the compatibility of the polymers in membrane structure. The morphology of pure membranes is in agreement with previously reported studies . For blend membranes, homogeneity of the membrane surface plays a very important role as it determines the compatibility of both polymers .…”

Section: Resultssupporting

confidence: 91%

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO₂/CH₄ separation

Mannan

Yih

Nasir

et al. 2018

Polymer Engineering & Sci

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This article presents fabrication, characterization, and performance evaluation of polyetherimide (PEI)/polyvinyl acetate (PVAc) blend membranes. Polymer blend membranes with various blend ratios of PEI/PVAc were prepared by solution casting and evaporation technique. Morphology and miscibility of polymer blend membranes were characterized by field emission scanning electron microscope (FESEM) and differential scanning calorimetry (DSC), respectively. The interaction between blend polymers was analyzed by FTIR analysis. Gas separation performance was evaluated in terms of permeability and selectivity. FESEM results revealed that pure polymer and blend membranes were homogeneous and dense in structure. A single glass transition temperature of polymer blend membranes was found in DSC analysis which indicated the miscibility of PEI/PVAc blend. FTIR analysis confirmed the presence of molecular interaction between blend polymers. The permeation results showed that the presence of PVAc (3 wt%) in blend membranes has improved CO2 permeability up to 95% compared to pure PEI membrane. In addition, CO2/CH4 selectivity was found to be 40% higher than pure PEI membrane. This study shows that blending a small fraction of PVAc can improve the gas separation performance of PEI/PVAc blend membranes. POLYM. ENG. SCI., 59:E293–E301, 2019. © 2018 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 91%

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO₂/CH₄ separation

Mannan

Yih

Nasir

et al. 2018

Polymer Engineering & Sci

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show abstract

“…However, low compatibility between the polymer and zeolite surface can cause void formation at the interface of the polymer and zeolite, allowing the gas to bypass the sieve material, thus reducing the effectiveness for gas separation applications . Poly(vinyl acetate) (PVAc) has a low glass transition temperature, T g , (35–45 °C) and is a flexible, low cost polymer with a high affinity to alumina, making it suitable for use with aluminosilicate zeolites, such as zeolite 4 A, forming void‐free MMMs . PVAc, combined with micron‐sized zeolite, has shown good adhesion, making it a potential polymer for MMM fabrication studies .…”

Section: Introductionmentioning

confidence: 99%

“…Poly(vinyl acetate) (PVAc) has a low glass transition temperature, T g , (35–45 °C) and is a flexible, low cost polymer with a high affinity to alumina, making it suitable for use with aluminosilicate zeolites, such as zeolite 4 A, forming void‐free MMMs . PVAc, combined with micron‐sized zeolite, has shown good adhesion, making it a potential polymer for MMM fabrication studies . The reported results for CO 2 ‐CH 4 separation have motivated the use of MMMs based on PVAc for gas separation…”

Section: Introductionmentioning

confidence: 99%

Improving the Gas‐Separation Properties of PVAc‐Zeolite 4A Mixed‐Matrix Membranes through Nano‐Sizing and Silanation of the Zeolite

et al. 2019

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Mixed‐matrix membranes containing synthesised nano‐sized zeolite 4A and PVAc were fabricated to investigate the effect of zeolite loading on membrane morphology, polymer‐filler interaction, thermal stability and gas separation properties. SEM studies revealed that, although the membranes with 40 wt % nano‐sized zeolite particles were distributed uniformly through the polymer matrix without voids, the membranes with 15 wt % zeolite loading showed agglomeration. With increasing zeolite content, the thermal stability improved, the permeability decreased and the selectivity increased. The effect of silanation on dispersion of 15 wt % zeolite 4A nanoparticles through PVAc was investigated by post‐synthesis modification of the zeolite with 3‐Aminopropyl(diethoxy)methylsilane. Modification of the nanoparticles improved their dispersion in PVAc, resulting in higher thermal stability than the corresponding unmodified zeolite membrane. Modification also decreased the rigidity of the membrane. Partial pore blockage of the modified zeolite nanoparticles after silanation caused a further decrease in permeability, compared to the 15 wt % unmodified zeolite membrane.

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“…Membrane performance depends, among other factors, on the intrinsic properties of the material that constitutes the selective medium and the structure formed by this material exerts a major influence on its permeability 2 . In many studies 3,4 , composite membranes were made from the blend of organic and inorganic materials for different applications. The preparation of these new membranes has shown improved permeability and selectivity characteristics.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of PA66/Alumina Composite Membrane

et al. 2015

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In this study, polymer/ceramic composite membranes were prepared and characterized. The polymer used was polyamide 66 (PA66) deposited by dip coating on the inner surface of α-alumina-based (Al 2 O 3 ) microporous tube. A coating on the ceramic support surface and the formation of the selective layer was analyzed by scanning electron microscopy (SEM) in membranes with one (PA-1) and two layers (PA-2). The results of mercury porosimetry showed that the deposition of the polyamide layers decreases the average pore size. The PA-1 presented an average pore size of 0.35 μm, while the PA-2 presented two peaks of 0.18 and 0.56 μm. Both showed a superior performance than the ceramic support (pore diameter of 0.65 μm). Although, the permeate flux was higher with an impregnation membrane, the number of layers (one or two) just introduced a slight difference in pore statistical analysis. The order of rejection coefficient values for protein molecules is BSA > egg albumin > trypsin. The permeation tests showed that the composite membrane can be applied in ultrafiltration processes with MWCO of 69 kDa.

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Preparation and characterization of polyvinyl acetate/zeolite 4A mixed matrix membrane for gas separation

Cited by 87 publications

References 63 publications

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO₂/CH₄ separation

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO₂/CH₄ separation

Improving the Gas‐Separation Properties of PVAc‐Zeolite 4A Mixed‐Matrix Membranes through Nano‐Sizing and Silanation of the Zeolite

Preparation and Characterization of PA66/Alumina Composite Membrane

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Preparation and characterization of polyvinyl acetate/zeolite 4A mixed matrix membrane for gas separation

Cited by 87 publications

References 63 publications

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO2/CH4 separation

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO2/CH4 separation

Improving the Gas‐Separation Properties of PVAc‐Zeolite 4A Mixed‐Matrix Membranes through Nano‐Sizing and Silanation of the Zeolite

Preparation and Characterization of PA66/Alumina Composite Membrane

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Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO₂/CH₄ separation

Fabrication and characterization of polyetherimide/polyvinyl acetate polymer blend membranes for CO₂/CH₄ separation