Modeling Study Of Thermally Induced Phase Separation Tips Membrane Formation Process
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Modeling Study Of Thermally Induced Phase Separation Tips Membrane Formation Process
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Author : Dongmei Li
language : en
Publisher:
Release Date : 1999
Modeling Study Of Thermally Induced Phase Separation Tips Membrane Formation Process written by Dongmei Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Membranes (Technology) categories.
Modeling Of The Solid Liquid Thermally Induced Phase Separation Tips Membrane Formation Process
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Author : Dongmei Li
language : en
Publisher:
Release Date : 2003
Modeling Of The Solid Liquid Thermally Induced Phase Separation Tips Membrane Formation Process written by Dongmei Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Membranes (Technology) categories.
Polymeric Membrane Formation By Phase Inversion
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Author : Naser Tavajohi
language : en
Publisher: Elsevier
Release Date : 2024-03-19
Polymeric Membrane Formation By Phase Inversion written by Naser Tavajohi and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-03-19 with Science categories.
Polymeric Membrane Formation by Phase Inversion brings together for the first time analysis of all the four main phase inversion techniques. Effective parameters in each technique are covered together with the methodologies needed to prepare advanced membranes for specific separations in both liquid and gas phases. Roll-to-roll casting, spinning hollow fiber, and electrospinning nanofibers are presented, along with an analysis of the impact of solvent toxicity, membrane production, and the source of raw materials on the environment. Describing a road map for designing different morphological characteristics to prepare specific membranes for special applications, the merits and disadvantages of each method are thoroughly explored and outlined along with the sustainability, scalability and economic perspectives of membrane formation. Providing easy reference for academic and industry professionals working in membrane engineering this is an essential resource. Analyzes membrane formation by phase inversion and modeling Includes state-of-the-art membrane formation methods and related characterization techniques Discusses solvent toxicity and sustainability issues of membrane production
Phase Field Modeling Of The Polymer Membrane Formation Process For Micro And Ultra Filtration
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Author : Michael Rosario Cervellere
language : en
Publisher:
Release Date : 2021
Phase Field Modeling Of The Polymer Membrane Formation Process For Micro And Ultra Filtration written by Michael Rosario Cervellere and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
Porous polymer membrane filters are widely used in separation and filtration process. Micro- and ultra-filtration membranes are commonly used in biopharmaceutical applications such as filtering viruses and separating proteins from a carrier solution. The formation of these membrane filters via phase inversion is a complex and interconnected process where varying casting conditions can have a wide variety of effects on the final membrane morphol- ogy. Tailoring membrane filters for specific performance characteristics is a tedious and time consuming process. The time and length scales of membrane formation make it extremely difficult to experimentally observe membrane formation. Modeling the membrane formation process allows one to slow down time and closely observe the formation of complex pore net- works. This allows new understanding and visual representations of the effects of different casting conditions and the resulting pore networks that form. This dissertation presents two separate models for two different membrane formation processes - thermally induced phase separation (TIPS) and non-solvent induced phase sepa- ration (NIPS). The Phase-Field method is employed to model the mesoscopic morphological structures that emerge during membrane formation. The Cahn-Hilliard equation is used to capture the diffusive nature of membrane formation and the Flory-Huggins free energy of mixing describes the thermodynamic equilibriums of the polymer solutions. Large-scale two- and three-dimensional simulations are used for capturing the resulting pore morphology under various casting conditions. The model for TIPS evaluated different casting conditions for the membrane forming system PVDF/DPC (polyvinylidene fluoride/diphenyl carbonate). The effects of casting surface temperature, thermal conductivity, quench rate, and polymer concentration were in- vestigated. Isotropic thermal quenches were used to analyzed pore size and interconnectivity while varying the quench rate and polymer concentration. Anisotropic thermal quenches in which a constant temperature cooling surface is imposed at the top surface were used to an-alyze the pore size and formation of a dense pore region near the casting surface. Different polymer concentrations, casting surface temperatures, and polymer thermal conductivities were used to characterize their effects on pore morphology. The formation of a dense pore region occurs near the top surface and the thickness of this dense pore region is dependent on the previous mentioned casting conditions. The model for NIPS evaluated the effects of coagulation bath composition and polymer concentration on final membrane morphology for PES/NMP/Water (polyethersulfone/n- methyl-2-pyrrolidone/water). These simulations were then compared to handcast mem- branes of a similar membrane forming system for comparison the simulated structures. The NIPS model evaluated coagulation bath composition and polymer concentration and the resulting morphologies. Two and three dimensional simulations were used to look at cross section and top surface morphology respectively. The concentration of NMP in the co- agulation bath was varied to verify the predictive capabilities of the model. The resulting simulations of cross sections and top surfaces had good agreement with handcast membranes when NMP is added to the coagulation bath.
Membrane Formation Via Liquid Liquid Thermally Induced Phase Separation
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Author : Kenneth Stephen McGuire
language : en
Publisher:
Release Date : 1995
Membrane Formation Via Liquid Liquid Thermally Induced Phase Separation written by Kenneth Stephen McGuire and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Phase rule and equilibrium categories.
Thermodynamics And Structural Study Of Thermally Induced Phase Separation Membranes
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Author : Sung-Soo Kim
language : en
Publisher:
Release Date : 1990
Thermodynamics And Structural Study Of Thermally Induced Phase Separation Membranes written by Sung-Soo Kim and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Thermodynamics categories.
Compression Molded Polymer Membrane Formation Via Thermally Induced Phase Separation
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Author : Qinhong Ye
language : en
Publisher:
Release Date : 1990
Compression Molded Polymer Membrane Formation Via Thermally Induced Phase Separation written by Qinhong Ye and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Membranes (Technology) categories.
The Kinetics Of Membrane Formation Via Thermally Induced Liquid Liquid Phase Separation
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Author : Anand Laxminarayan
language : en
Publisher:
Release Date : 1994
The Kinetics Of Membrane Formation Via Thermally Induced Liquid Liquid Phase Separation written by Anand Laxminarayan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Thermodynamics categories.
Modeling In Membranes And Membrane Based Processes
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Author : Anirban Roy
language : en
Publisher: John Wiley & Sons
Release Date : 2020-04-07
Modeling In Membranes And Membrane Based Processes written by Anirban Roy and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-07 with Science categories.
The book Modeling in Membranes and Membrane-Based Processes is based on the idea of developing a reference which will cover most relevant and “state-of-the-art” approaches in membrane modeling. This book explores almost every major aspect of modeling and the techniques applied in membrane separation studies and applications. This includes first principle-based models, thermodynamics models, computational fluid dynamics simulations, molecular dynamics simulations, and artificial intelligence-based modeling for membrane separation processes. These models have been discussed in light of various applications ranging from desalination to gas separation. In addition, this breakthrough new volume covers the fundamentals of polymer membrane pore formation mechanisms, covering not only a wide range of modeling techniques, but also has various facets of membrane-based applications. Thus, this book can be an excellent source for a holistic perspective on membranes in general, as well as a comprehensive and valuable reference work. Whether a veteran engineer in the field or lab or a student in chemical or process engineering, this latest volume in the “Advances in Membrane Processes” is a must-have, along with the first book in the series, Membrane Processes, also available from Wiley-Scrivener.
Science And Technology Of Separation Membranes
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Author : Tadashi Uragami
language : en
Publisher: John Wiley & Sons
Release Date : 2017-02-10
Science And Technology Of Separation Membranes written by Tadashi Uragami and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-02-10 with Technology & Engineering categories.
Offers a comprehensive overview of membrane science and technology from a single source Written by a renowned author with more than 40 years’ experience in membrane science and technology, and polymer science Covers all major current applications of membrane technology in two definitive volumes Includes academic analyses, applications and practical problems for each existing membrane technology Includes novel applications such as membrane reactors, hybrid systems and optical resolution as well as membrane fuel cells