Gas separation properties of polyurethane/poly(ether-block-amide) (PU/PEBA) blend membranes

Mozaffari, V.; Sadeghi, Morteza; Fakhar, Afsaneh; Khanbabaei, Ghader; Ismail, Ahmad Fauzi

doi:10.1016/j.seppur.2017.05.028

Cited by 61 publications

(29 citation statements)

References 49 publications

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“…a, the content of PA‐PPG is fixed, 40% of PA‐PPG (x) blended in Pebax 2533 is characterized as an example, where x represents the content of PPG in PA‐PPG. The characteristic peaks at 3,339, 1,737, and 1,643 cm −1 are respectively assigned to NH stretching vibration, CO stretching vibration in saturated esters, CO stretching vibration in HNCO groups , all of which are present in Pebax 2533. The PA‐PPGs characteristic peaks are 3,339, 1,680, 1,206, and 796–876 cm −1 , which belong to NH stretching vibration, CO stretching vibration, CF stretching vibration, and CC deformation vibration of benzene ring, respectively.…”

Section: Resultsmentioning

confidence: 99%

Preparation of poly(ether‐block‐amide)/poly(amide‐co‐poly(propylene glycol)) random copolymer blend membranes for CO₂/N₂ separation

Zhu

Yang

Zheng

et al. 2018

Polymer Engineering & Sci

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A series of poly(amide‐co‐poly(propylene glycol)) (PA‐PPG) random copolymers with different content of PPG were designed by polycondensation reaction. These random copolymers were blended up to 60% with commercially available Pebax 2533. The blend membranes were characterized by Fourier‐transform infrared (FTIR) spectroscopy, X‐ray diffraction (XRD), scanning electron microscope (SEM). Gas permeation properties of these blend membranes were investigated using five single‐gases (CO2, H2, O2, CH4, and N2) at different temperature of 25–55°C and 1.0 atm. The impacts of content of PA‐PPG with different PPG content and operating temperature on CO2 separation properties of Pebax/PA‐PPG blend membranes were studied. The results showed that CO2 permeability gradually increased with the increasing operating temperature, whereas CO2 permeability gradually decreased with the increase in content of PA‐PPG. CO2/N2 selectivity gradually increased with the increase in content of PA‐PPG. In particular, Pebax/PA‐PPG (50)–60% displayed excellent CO2 and O2 separation properties (PCO2 = 79.7 Barrer and PO2 = 13.6 Barrer, CO2/N2 = 34.7 and O2/N2 = 5.9) at 25°C and 1.0 atm. POLYM. ENG. SCI., 59:E14–E23, 2019. © 2018 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

Preparation of poly(ether‐block‐amide)/poly(amide‐co‐poly(propylene glycol)) random copolymer blend membranes for CO₂/N₂ separation

Zhu

Yang

Zheng

et al. 2018

Polymer Engineering & Sci

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“…In their study, they used a layer-by-layer deposition approach to synthesize the mentioned membranes. In another study, Mozaffari et al 47 prepared polyurethane (PU)/PEBA blend membranes using a thermal phase inversion method to investigate N 2 , O 2 , CO 2 and CH 4 light gas molecule separation properties. Based on the results of gas separation experiments, it was revealed that by increasing the PEBA percentage in PU/PEBA membranes, the permeability of all mentioned gases reduced whereas selectivity increased.…”

Section: Literature Reviewmentioning

confidence: 99%

“…In their study, they used a layer‐by‐layer deposition approach to synthesize the mentioned membranes. In another study, Mozaffari et al . prepared polyurethane (PU)/PEBA blend membranes using a thermal phase inversion method to investigate N 2 , O 2 , CO 2 and CH 4 light gas molecule separation properties.…”

Section: Introductionmentioning

confidence: 99%

Comparison of ZnO nanofillers of different shapes on physical, thermal and gas transport properties of PEBA membrane: experimental testing and molecular simulation

Asghari

Sheikh

Dehghani

2018

J of Chemical Tech & Biotech

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BACKGROUND PEBA and nano‐ZnO have been discussed for membrane modification and for gas separation in different studies and in mixed matrix membranes (i.e. PEBA/TiO2, PE/ZnO); however, no report has been published on the gas transport properties of ZnO/PEBA hybrid membranes. RESULTS Molecular simulation and experimental approaches were done using PEBA 1657 mixed matrix membranes (MMMs) loaded with ZnO nanorod‐ and nanosphere shaped nanomaterials at 0.5 wt% and 1 wt% loading to investigate the gas separation properties of these MMMs. Structural characterizationwas carried out by FESEM, AFM, BET and FTIR on synthesized membranes, and FFV and WAXD on the simulated membrane cells to study their structural properties. Thermal analysis was carried out by TGA, DMTA and calculation of the glass transition temperature to investigate the thermal properties of the MMMs. The results showed that the addition of ZnO filler significantly improved both the physical and thermal properties of the MMMs based on the characterization tests. The transport properties of the MMMs for three single light gas molecules (CO2, CH4 and N2) were investigated using experimental set‐up testing (permeability and selectivity), and also by molecular dynamic and Monte Carlo approaches in molecular simulation (diffusivity and solubility). The addition of ZnO nanomaterials in both shapes to the polymeric membrane significantly increased the transport properties; for example, CO2 permeability increased from 120 for membrane without nanomaterial to 135 barrer for membrane with 0.5 wt% of nanosphere ZnO and 157 barrer for membrane with 0.5 wt% nanorod ZnO. CONCLUSION The permeability of CH4 and N2 gases into all samples showed no significant change with an increase in pressure or ZnO loading which is likely due to the penetration paths in the membranes. The membrane with 1 wt% ZnO nanorods had the best performance in the Robeson upper bound 2008 diagram. This sample is thus suggested for industrial development. The simulation results showed a similar trend for the membranes and gas molecules, with an error of 25% to 65% from experimental results. We conclude that the PEBA/1 wt% ZnO nanorods membrane could be an ideal solid polymer membrane for gas separation applications. © 2018 Society of Chemical Industry

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“…Polymer blending and mixed-matrix membranes (MMMs) are attractive techniques for the development of membranes with high separation performance. In particular, polymer blending is a simple approach to combine the advantages of a highly permeable and a highly selective polymer pair to improve the properties of polymer membranes [7,8,9,10]. Besides, it has been shown that the incorporation of inorganic particles (e.g., silica, MOFs, zeolites) to a polymer matrix can improve the separation performance, mechanical properties, and control the aging and plasticization of the membranes [11,12,13,14].…”

Section: Introductionmentioning

confidence: 99%

Influence of Blend Composition and Silica Nanoparticles on the Morphology and Gas Separation Performance of PU/PVA Blend Membranes

et al. 2019

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Polymer blending and mixed-matrix membranes are well-known modification techniques for tuning the gas separation properties of polymer membranes. Here, we studied the gas separation performance of mixed-matrix membranes (MMMs) based on the polyurethane/poly(vinyl alcohol) (PU/PVA) blend containing silica nanoparticles. Pure (CO2, CH4, N2, O2) and mixed-gas (CO2/N2 and CO2/CH4) permeability experiments were carried out at 10 bar and 35 °C. Poly(vinyl alcohol) (PVA) with a molecular weight of 200 kDa (PVA200) was blended with polyurethane (PU) to increase the CO2 solubility, while the addition of silica particles to the PU/PVA blend membranes augmented the CO2 separation performance. The SEM images of the membranes showed that the miscibility of the blend improved by increasing the PVA contents. The membrane containing 10 wt % of PVA200 (PU/PVA200–10) exhibited the highest CO2/N2~32.6 and CO2/CH4~9.5 selectivities among other blend compositions, which increased to 45.1 and 15.2 by incorporating 20 wt % nano-silica particles.

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Gas separation properties of polyurethane/poly(ether-block-amide) (PU/PEBA) blend membranes

Cited by 61 publications

References 49 publications

Preparation of poly(ether‐block‐amide)/poly(amide‐co‐poly(propylene glycol)) random copolymer blend membranes for CO₂/N₂ separation

Preparation of poly(ether‐block‐amide)/poly(amide‐co‐poly(propylene glycol)) random copolymer blend membranes for CO₂/N₂ separation

Comparison of ZnO nanofillers of different shapes on physical, thermal and gas transport properties of PEBA membrane: experimental testing and molecular simulation

Influence of Blend Composition and Silica Nanoparticles on the Morphology and Gas Separation Performance of PU/PVA Blend Membranes

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Gas separation properties of polyurethane/poly(ether-block-amide) (PU/PEBA) blend membranes

Cited by 61 publications

References 49 publications

Preparation of poly(ether‐block‐amide)/poly(amide‐co‐poly(propylene glycol)) random copolymer blend membranes for CO2/N2 separation

Preparation of poly(ether‐block‐amide)/poly(amide‐co‐poly(propylene glycol)) random copolymer blend membranes for CO2/N2 separation

Comparison of ZnO nanofillers of different shapes on physical, thermal and gas transport properties of PEBA membrane: experimental testing and molecular simulation

Influence of Blend Composition and Silica Nanoparticles on the Morphology and Gas Separation Performance of PU/PVA Blend Membranes

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Product

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Preparation of poly(ether‐block‐amide)/poly(amide‐co‐poly(propylene glycol)) random copolymer blend membranes for CO₂/N₂ separation

Preparation of poly(ether‐block‐amide)/poly(amide‐co‐poly(propylene glycol)) random copolymer blend membranes for CO₂/N₂ separation