Gas permeation properties of ethylene vinyl acetate–silica nanocomposite membranes

Sadeghi, Morteza; Khanbabaei, Ghader; Dehaghani, Amir Hossein Saeedi; Sadeghi, Mohammad; Aravand, Mohammadali; Akbarzade, Mohammad; Khatti, Somaieh

doi:10.1016/j.memsci.2008.05.077

Cited by 126 publications

(93 citation statements)

References 36 publications

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“…The membrane technology is emerging as a truly economical and competent technology apart from other separation processes [1][2][3][4][5]. Some distinguishing features of membrane technology are the low energy requirement, smaller foot print, low capital and operation cost, and that it is environment friendly [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…Firstly, the interaction between Si and CA resists the proper segmental packing of CA polymer chains, thereby creating voids (free volume) and ultimately enhancing gaseous diffusion. Secondly, the polar -OH groups on the surface of Si also interact with polar gases, i.e., CO 2 , and augments CO 2 solubility in CA polymer [3,33,34]. Thus, overall gas permeability is notably influenced by adding Si particles to the CA matrix.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of silica and novel functionalized silica-based cellulose acetate hybrid membranes in gas permeation study

et al. 2015

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Cellulose acetate (CA) is a widely applied glassy polymer in the preparation of gas separation membranes. In the present study, hybrid membranes were prepared by incorporating silica (Si) and silica functionalized with ptetranitrocalix[4]arene (Si-CL) into the CA matrix, and their gas permeation abilities were explored with regard to CO 2 , N 2 and CH 4 gases. The diffusion-induced phase separation (DIPS) method was adopted to make pure CA, CA/Si, and CA/Si-CL hybrid membranes. The concentration of Si-CL was varied as 10 wt%, 20 wt% and 30 wt% in the hybrid membranes. The analytical techniques employed for membrane characterization were Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), atomic force microscopy (AFM), and X ray-diffraction (XRD) analysis. The proper interaction of Si and Si-CL was confirmed by FTIR analysis. However, the homogenous surface textures of CA/Si, and CA/Si-CL hybrid membranes were evaluated through SEM. Furthermore, AFM analysis was performed to examine the surface roughness of these hybrid membranes. The changes in the crystallinity of CA were also examined by XRD analysis after adding Si and Si-CL. Moreover, the tensile strength of the CA/Si hybrid membrane was found to be better than that of CA/Si-CL hybrid membranes. CO 2 , CH 4 and N 2 gases were used for gas permeation experiments at 400 kPa. Among CO 2 and CH 4 gases, the permeability of N 2 was high in CA/Si-CL hybrid membranes, and N 2 /CO 2 selectivity of these membranes was 22.6.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of silica and novel functionalized silica-based cellulose acetate hybrid membranes in gas permeation study

et al. 2015

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“…2,13,18 The change in the relative intensity of the peaks in the nanocomposites might be due to the crystal alignment during the preparation process. Interestingly, the relative intensity of the diffraction peaks of the E1M3S samples was higher than the other samples, indicating an enhancement of diffuse amorphous scattering and an increase in overall crystallinity.…”

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confidence: 99%

Effects of maleic anhydride grafted ethylene/vinyl acetate copolymer (EVA) on the properties of EVA/silica nanocomposites

et al. 2013

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International audienceTernary nanocomposites based on ethylene/vinyl acetate copolymer (EVA), maleic anhydride-grafted EVA (EVAgMA), and nanosilica were prepared in a Haake Rheomixer. The structure of the EVA/EVAgMA/silica nanocomposites was characterized by Fourier transform infrared spectroscopy and field emission scanning electron microscopy. The blending sequence was found to have a significant effect on the microstructure of EVA/EVAgMA/silica nanocomposites and the dispersion behavior of the nanosilica in the EVA matrix. The tensile properties (tensile strength and elongation at break), thermal behavior, crystalline structure and weatherability of the nanocomposites were also studied. The results showed that the above properties of the nanocomposites were enhanced remarkably using 1 wt% EVAgMA

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“…Besides, the lower permeability of N 2 might be due to slow diffusivity resulting from the larger kinetic diameter and solubility in the PEI polymer. 28 It was also reported by Alsari et al 29 in their study, where they laid much emphasis on the importance of membrane thickness to the separation of gas as the thickness increased, the permeability drastically reduced.…”

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confidence: 53%

Thickness Effect on the Morphology and Permeability of CO2/N2 Gases in Asymmetric Polyetherimide Membrane

Ahmad¹,

Olatunji²,

Jawad³

2017

JPS

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Gas permeation properties of ethylene vinyl acetate–silica nanocomposite membranes

Cited by 126 publications

References 36 publications

Comparison of silica and novel functionalized silica-based cellulose acetate hybrid membranes in gas permeation study

Comparison of silica and novel functionalized silica-based cellulose acetate hybrid membranes in gas permeation study

Effects of maleic anhydride grafted ethylene/vinyl acetate copolymer (EVA) on the properties of EVA/silica nanocomposites

Thickness Effect on the Morphology and Permeability of CO2/N2 Gases in Asymmetric Polyetherimide Membrane

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