Effect of PVP content and polymer concentration on polyetherimide (PEI) and polyacrylonitrile (PAN) based ultrafiltration membrane fabrication and characterization

Durak, Sevgi Güneş; Ormancı-Acar, Türkan; Tüfekçi, Neşe

doi:10.2166/wst.2018.142

Cited by 16 publications

(10 citation statements)

References 33 publications

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“…In this study, the mechanical behavior of polymeric porous membranes that are to be used for wastewater treatment are investigated by modeling the membrane numerically. The membranes manufactured and characterized in this study are intended for use in the treatment of fruit juice wastewater in a “submerged membrane bioreactor.” First, uniaxial tensile testing is performed three times for each material to determine the mechanical properties of the membrane materials . The material data obtained from these experiments are found to be consistent and are imported into commercial finite element analysis software, where the numerical model of the membrane is built.…”

Section: Introductionmentioning

confidence: 99%

Effects of geometry and PVP addition on mechanical behavior of PEI membranes for use in wastewater treatment

Tüfekçi

Durak

Ormancı-Acar

et al. 2018

J of Applied Polymer Sci

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This study focuses on the mechanical behavior and design of membrane filters that are used in water and wastewater treatment. The aim of this study is, after characterizing the mechanical behavior of the membrane materials, to find a better shape in terms of mechanical parameters. As the first step, uniaxial tensile testing is applied to the produced polymeric membranes with certain contents of poly(ether imide), poly(vinylpyrrolidone), and N-methyl-2-pyrrolidone to get an understanding of the mechanical behavior of the membrane materials. The material data obtained from this experimental process are used as input to software where a finite element model of the membrane is built. Each geometry has the same boundary conditions and the same area, and the same pressure is applied to each geometry. Using these numerical models, the selected geometries are analyzed in terms of displacement, equivalent stress, and equivalent strain. The results are discussed based on these parameters.

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Section: Introductionmentioning

confidence: 99%

Effects of geometry and PVP addition on mechanical behavior of PEI membranes for use in wastewater treatment

Tüfekçi

Durak

Ormancı-Acar

et al. 2018

J of Applied Polymer Sci

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“…To form pores in the membranes, some agents are added in the main polymer [ 15 ]. Adding PVP into PAN provides checking over the properties of polymeric membranes, especially thermodynamically and kinetic-wise [ 16 , 17 ]. Addition of PVP causes thermodynamic instability and phase separation is to be observed [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

“…As mentioned earlier, a significant portion of the research in the literature only prepares and characterises the membranes, whereas too few of these studies include modelling works with the results they obtain from the characterisation process [ 69 ]. These membranes are designed to treat fruit juice wastewater in a “Submerged Membrane Bioreactor” (MBR) [ 17 ]. Material characterisation is done by performing experiments [ 70 ].…”

Section: Introductionmentioning

confidence: 99%

Manufacturing, Characterisation and Mechanical Analysis of Polyacrylonitrile Membranes

et al. 2020

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To investigate the effect of polyvinylpyrrolidone (PVP) addition and consequently porosity, two different sets of membranes are manufactured, since PVP is a widely used poring agent which has an impact on the mechanical properties of the membrane material. The first set (PAN 1) includes polyacrylonitrile (PAN) and the necessary solvent while the second set (PAN 2) is made of PAN and PVP. These membranes are put through several characterisation processes including tensile testing. The obtained data are used to model the static behaviour of the membranes with different geometries but similar loading and boundary conditions that represent their operating conditions. This modelling process is undertaken by using the finite element method. The main idea is to investigate how geometry affects the load-carrying capacity of the membranes. Alongside membrane modelling, their materials are modelled with representative elements with hexagonal and rectangular pore arrays (RE) to understand the impact of porosity on the mechanical properties. Exploring the results, the best geometry is found as the elliptic membrane with the aspect ratio 4 and the better RE as the hexagonal array which can predict the elastic properties with an approximate error of 12%.

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“…To form pores in the membranes, some agents are added in the main polymer [15]. Adding PVP into PAN provides checking over the properties of polymeric membranes, especially thermodynamically and kinetic-wise [16,17]. Addition of PVP causes a thermodynamic instability and a phase separation is to be observed [18].…”

Section: Introductionmentioning

confidence: 99%

“…Whereas too few of those studies include modelling works with the results they obtain from the characterisation process [69]. These membranes are designed to treat fruit juice wastewater in the "Submerged Membrane Bioreactor" (MBR) [17]. Material characterisation is done by performing experiments [70].…”

Section: Introductionmentioning

confidence: 99%

Manufacturing, Characterisation and Mechanical Analysis of PAN Membranes

Tüfekçi¹,

Durak²,

Pir³

et al. 2020

Preprint

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To investigate the effect of Polyvinylpyrrolidone (PVP) addition and consequently porosity, two different sets of membranes are manufactured, since PVP is a widely used poring agent which has an impact on the mechanical properties of the membrane material. The first set (PAN 1) includes PAN and the necessary solvent while the second set (PAN 2) is made of PAN and PVP. These membranes are put through several characterisation processes including tensile testing. The obtained data are used to model the static behaviour of the membranes with different geometries, but similar loading and boundary conditions that represent their operating conditions. This modelling process is undertaken by using finite element method. The main idea is to investigate how geometry affects the load-carrying capacity of the membranes. Alongside membrane modelling, their materials are modelled with representative elements with hexagonal and rectangular pore arrays (RE) to understand the impact of porosity on the mechanical properties. Exploring the results, the best geometry is found as the elliptic membrane with the aspect ratio 4 and the better RE as the hexagonal array which can predict the elastic properties with an approximate error of 12%.

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Effect of PVP content and polymer concentration on polyetherimide (PEI) and polyacrylonitrile (PAN) based ultrafiltration membrane fabrication and characterization

Cited by 16 publications

References 33 publications

Effects of geometry and PVP addition on mechanical behavior of PEI membranes for use in wastewater treatment

Effects of geometry and PVP addition on mechanical behavior of PEI membranes for use in wastewater treatment

Manufacturing, Characterisation and Mechanical Analysis of Polyacrylonitrile Membranes

Manufacturing, Characterisation and Mechanical Analysis of PAN Membranes

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