A new technique for the simultaneous, real-time measurement of membrane compaction and performance during exposure to high-pressure gas

Reinsch, Veronika E.; Greenberg, Alan R.; Kelley, Stephen S.; Peterson, R.J.; Bond, Leonard J.

doi:10.1016/s0376-7388(00)00307-0

Cited by 65 publications

(22 citation statements)

References 16 publications

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“…5 represents the flux behavior of the membranes during three different conditions (flux before BSA filtration, flux during BSA filtration and flux after BSA filtration) at 0.6 MPa TMP and 26°C. The initial flux decline in all the membranes is due to the mechanical deformation of polymeric membrane matrix [43]. When the feed tank was replaced by BSA solution, drastic reduction in the flux was observed due to the BSA blocking of pores and absorption on the membrane surface.…”

Section: Permeation and Antifouling Propertymentioning

confidence: 99%

Modification of PSf/PIAM membrane for improved desalination applications using Chitosan coagulation media

et al. 2013

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Section: Permeation and Antifouling Propertymentioning

confidence: 99%

Modification of PSf/PIAM membrane for improved desalination applications using Chitosan coagulation media

et al. 2013

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“…Several studies revealed that the permeability of porous polymer membranes decreased with time because of compaction . Experimental investigations of compaction phenomena were performed which showed the occurrence of reversible and irreversible deformations .…”

Section: Introductionmentioning

confidence: 99%

Analysis of compaction and life‐time prediction of porous polymer membranes: influence of morphology, diffusion and creep behaviour

Handge

2016

Polymer International

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In membrane applications, large values of permeability and selectivity are generally desired during the whole period of application. The permeability of porous polymer membranes often is reduced by the effect of compaction. Compaction of polymer membranes is a time‐dependent process which is strongly determined by the viscoelastic properties of the polymer and its plasticisation caused by the feed medium (e.g. a liquid medium or a process gas in the case of porous support structures). In this study, the time‐dependent compaction of porous polymer membranes under pressure is modelled. The influence of viscoelastic and diffusion properties of the polymer material on the permeability of the membrane is analysed for different types of membrane morphologies. The life‐time of a porous polymer membrane is associated with the time at which the glass transition is achieved in a creep experiment. Equations are derived in order to estimate the maximum life‐time of polymer membranes based on compaction. The analysis reveals that the diffusion coefficient, the average retardation time in creep, the magnitude of creep compliance and the time–temperature–pressure shift factor strongly influence compaction of microporous membranes. Generally, a larger tortuosity at constant porosity yields a lower life‐time of the membrane. Buckling of cell struts is the dominant failure mechanism in porous membranes with a very high porosity and allows an estimation of life‐time. © 2016 Society of Chemical Industry

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“…The pressure-driven membrane filtration technology has been widely used in industrial applications, but a major problem in separation process is flux attenuation [1][2][3][4][5][6]. Previous studies [1][2][3][4][5] have primarily focused on the membrane flux attenuation caused by the membrane fouling.…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, organic membranes are composed of viscoelastic polymer materials with porous structures. Transmembrane pressure leads to the mechanical deformation which alters the membrane structures and properties [6][7][8]. Lawson et al [9] investigated the effects of the compressibility of the polyamide membrane on the gas permeability.…”

Section: Introductionmentioning

confidence: 99%

“…They further proposed a viscoelastic model to describe the compaction of membrane. Peterson et al [6,17,18] studied the compression performance of the Dow BW-30 polyamide/PS composite membrane, using the technique of ultrasonic timedomain reflectometry by measuring the compressive stress of the membranes. The results found that, although the compressive strain of the polyamide/PS composite membrane decreased rapidly with the increase of pressure, the pure water permeability of composite membranes decreased gradually.…”

Section: Introductionmentioning

confidence: 99%

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A method to characterize the compressibility and stability of microfiltration membrane

Han

Zhao

et al. 2015

Desalination

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A new technique for the simultaneous, real-time measurement of membrane compaction and performance during exposure to high-pressure gas

Cited by 65 publications

References 16 publications

Modification of PSf/PIAM membrane for improved desalination applications using Chitosan coagulation media

Modification of PSf/PIAM membrane for improved desalination applications using Chitosan coagulation media

Analysis of compaction and life‐time prediction of porous polymer membranes: influence of morphology, diffusion and creep behaviour

A method to characterize the compressibility and stability of microfiltration membrane

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