Membrane Formation By Phase Inversion In Multicomponent Polymer Systems
DOWNLOAD
Download Membrane Formation By Phase Inversion In Multicomponent Polymer Systems PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Membrane Formation By Phase Inversion In Multicomponent Polymer Systems book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Membrane Formation By Phase Inversion In Multicomponent Polymer Systems
DOWNLOAD
Author : Willem Franciscus Catherina Kools
language : en
Publisher:
Release Date : 1998
Membrane Formation By Phase Inversion In Multicomponent Polymer Systems written by Willem Franciscus Catherina Kools and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Polymeric Membrane Formation By Phase Inversion
DOWNLOAD
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
DOWNLOAD
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.
Mathematical Modeling And Experimental Study Of Thermodynamic And Transport Processes In The Formation Of Structured Polymer Membranes
DOWNLOAD
Author : Gerard Marcelino Tablada Caneba
language : en
Publisher:
Release Date : 1985
Mathematical Modeling And Experimental Study Of Thermodynamic And Transport Processes In The Formation Of Structured Polymer Membranes written by Gerard Marcelino Tablada Caneba and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with categories.
Polymeric Membrane Synthesis Modification And Applications
DOWNLOAD
Author : Chandan Das
language : en
Publisher: CRC Press
Release Date : 2018-10-12
Polymeric Membrane Synthesis Modification And Applications written by Chandan Das and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-12 with Science categories.
Membranes and membrane separation techniques have grown from a simple laboratory tool to an industrial process with considerable technical and commercial impact. The book deals with both the fundamental concepts of preparation, characterization and modification, practical applications along with recent advancements of electro-spun and phase inverted polymeric membranes. Divided into two parts, part one of this book covers the fundamental concepts and practical applications of novel electro-spun membranes while the latter covers basic concepts and further advancements of the conventional phase inverted membranes extensively. Key Features Covers fundamental concepts and practical applications of electro-spun and phase inverted polymeric membranes Includes general properties, characterization, preparation and modification of polymeric membranes Discusses advanced modification of polymeric membranes (functionalization, grafting) using phase inversion process, and effects of solubility parameter and additives on the phase inversion process Reviews electro-spun membranes for biomedical applications, industrial effluents treatment and removal of water contaminants Explores a separate economic analysis section for the discussed membranes
Membrane And Desalination Technologies
DOWNLOAD
Author : Lawrence K. Wang
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-12-01
Membrane And Desalination Technologies written by Lawrence K. Wang and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-12-01 with Science categories.
In this essential new volume, Volume 13: Membrane and Desalination Technologies, a panel of expert researchers provide a wealth of information on membrane and desalination technologies. An advanced chemical and environmental engineering textbook as well as a comprehensive reference book, this volume is of high value to advanced graduate and undergraduate students, researchers, scientists, and designers of water and wastewater treatment systems. This is an essential part of the Handbook of Environmental Engineering series, an incredible collection of methodologies that study the effects of pollution and waste in their three basic forms: gas, solid, and liquid. Chapters adopt the series format, employing methods of practical design and calculation illustrated by numerical examples, including pertinent cost data whenever possible, and exploring in great detail the fundamental principles of the field. Volume 13: Membrane and Desalination Technologies is an essential guide for researchers, highlighting the latest developments in principles of membrane technology, membrane systems planning and design, industrial and municipal waste treatments, desalination requirements, wastewater reclamation, biofiltration, and more.
Multicomponent Transport In Polymer Systems For Controlled Release
DOWNLOAD
Author : Alexandreya Ya Polishchuk
language : en
Publisher: CRC Press
Release Date : 1997-04-01
Multicomponent Transport In Polymer Systems For Controlled Release written by Alexandreya Ya Polishchuk and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-04-01 with Technology & Engineering categories.
This book addresses the general aspects of current knowledge of multicomponent transport in hydrophylic and moderately hydrophylic polymers. The first part of the book presents the physical and mathematical models which have been developed in order to predict the behavior of systems consisting of polymer, water and low-molecular solutes. The second half addresses different transport devices for controlled delivery and how the principles reported in the first part could be applied to the regulations of kinetics and the rate of transport of water and solutes. Major applications of polymer systems for controlled release in medicine, agriculture, and in industry are also described.
Polymer Membranes
DOWNLOAD
Author : T. deV. Naylor
language : en
Publisher: iSmithers Rapra Publishing
Release Date : 1996
Polymer Membranes written by T. deV. Naylor and has been published by iSmithers Rapra Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Technology & Engineering categories.
This report describes the constitution and application of polymeric membranes in separation processes. The separation processes covered are reverse osmosis and nanofiltration, ultrafiltration, gas separation, pervaporation and ion exchange. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database provides useful references for further reading.
Multicomponent Diffusion And Phase Separation In Asymmetric Ternary Polymer Systems
DOWNLOAD
Author : Abdulrahman A. Alfarraj
language : en
Publisher: ProQuest
Release Date : 2007
Multicomponent Diffusion And Phase Separation In Asymmetric Ternary Polymer Systems written by Abdulrahman A. Alfarraj and has been published by ProQuest this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Chemical and biological engineering categories.
Phase Relations In Multicomponent Polymer Systems
DOWNLOAD
Author : R. J. Roe
language : en
Publisher:
Release Date : 1985
Phase Relations In Multicomponent Polymer Systems written by R. J. Roe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with categories.
In this project a number of polymer blend systems were studied to find the thermodynamic factors controlling the compatibility, such as the temperature, concentration, molecular weight and the copolymer composition, etc. Topics investigated include: The polymer-polymer interaction parameter between polystyrene and polybutadiene was determined, and the applicability of mean field theories (Flory-Huggins theory and the equation-of-state theory) to the polymer miscibility was ascertained. The feasibility of determining the thickness of interfaces between dissimilar polymers by means of small-angle X-ray scattering was critically examined. The occurrence of the order-disorder transition in block copolymer system were investigated. Light scattering and small-angle X-ray scattering were utilized to study the phase transition and phase separation behavior of mixtures of a homopolymer and a block copolymer, and this led to the construction of phase diagrams which exhibit many new features not found with other types of polymer blends. Deuteration of polystyrene was found not to influence its miscibility with polybutadiene. The effectiveness of a random or block copolymer as a compatibilizer of homopolymer blends was investigated. The effect of molecular weight polydipersity on the cloud point curves of polymeric blends was investigated.