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Foaming With Supercritical Fluids
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Book Synopsis Foaming with Supercritical Fluids by : Ernesto Di Maio
Download or read book Foaming with Supercritical Fluids written by Ernesto Di Maio and published by Elsevier. This book was released on 2021-11-06 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foaming with Supercritical Fluids, Volume Nine provides a comprehensive description of the use of supercritical fluids as blowing agents in polymer foaming. To this aim, the fundamental issues on which the proper design and control of this process are rooted are discussed in detail, with specific attention devoted to the theoretical and experimental aspects of sorption thermodynamics of a blowing agent within a polymer, the effect of the absorbed blowing agent on the thermal, interfacial and rheological properties of the expanding matter, and the phase separation of the gaseous phase, and of the related bubble nucleation and growth phenomena. Several foaming technologies based on the use of supercritical blowing agents are then described, addressing the main issues in the light of the underlying chemical-physical phenomena. Offers strong fundamentals on polymer properties important on foaming Outlines the use of supercritical fluids for foaming Covers theoretical points-of-view, including foam formation of the polymer/gas solution to the setting of the final foam Discusses the several processing technologies and applications
Book Synopsis Blend- and Surface-assisted Foaming of Polymers with Supercritical Carbon Dioxide by : Srinivas Siripurapu
Download or read book Blend- and Surface-assisted Foaming of Polymers with Supercritical Carbon Dioxide written by Srinivas Siripurapu and published by . This book was released on 2003 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: polymer surfactants, polymer blends, high pressure rheology, controlled foam nucleation, carbon dioxide, nanoporous polymers, microcellular foam, supercritical fluids.
Download or read book Foam Extrusion written by S.-T. Lee and published by CRC Press. This book was released on 2014-04-07 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combining the science of foam with the engineering of extrusion processes, Foam Extrusion: Principles and Practice delivers a detailed discussion of the theory, design, processing, and application of degradable foam extraction. In one comprehensive volume, the editors present the collective expertise of leading academic, research, and industry spec
Book Synopsis Polymer Processing with Supercritical Fluids by : Vannessa Goodship
Download or read book Polymer Processing with Supercritical Fluids written by Vannessa Goodship and published by iSmithers Rapra Publishing. This book was released on 2005 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: SCFs are currently the subjects of intense research and commercial interest. Applications such as the RESS (rapid expansion of supercritical fluid solutions) process are part of standard industrial practice. In view of their ever-growing importance in the polymer industry there is a need to fully comprehend how supercritical fluids interrelate with polymeric materials to realise the potential that can be gained from their use. The authors review the basic principles of SCFs and their application within the polymer industry: characteristics and properties, extraction of unwanted residual products, polymerisation solvents, and polymer impregnation. Processing applications such as plasticisation, foaming and blending are also considered. There is discussion of the potential within the polymer recycling industry for use of SCFs as cleaning agents or within supercritical oxidation processes. Around 400 references with abstracts from recent global literature accompany this review, sourced from the Polymer Library, to facilitate further reading. A subject index and a company index are included.
Book Synopsis Foaming + Impregnation One-Step Process Using Supercritical CO2 by : Antonio Montes
Download or read book Foaming¬†+¬†Impregnation One-Step Process Using Supercritical CO2 written by Antonio Montes and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers are widely used in everyday life due to their properties as toughness, viscoelasticity, and the possibility to form glasses and semicrystalline structures. For that reason, it is used in mostly drug delivery systems and tissue engineering and in pharmaceutical and biomedical investigations. Foaming process allows creating porous structure into the polymer leading to scaffolds. Scaffolds are the focus of many investigations as prolonged drug delivery systems and implants or injections which are used to deliver cells, drugs, and genes into the body. Particulate leaching, freeze-drying, thermally induced phase separation, rapid prototyping, powder compaction, sol,Äìgel, and melt molding are the main techniques in front of supercritical fluid technology to prepare scaffolds. Supercritical foaming process using CO2 presents advantages as a high dissolution in polymers and a green process because CO2 is nontoxic, inexpensive, and reusable. Moreover, supercritical technology allows to do an impregnation with an active substance together with the foaming at the same time. Thus active substances entrapped into scaffolds could be fabricated in a one-step green process.
Book Synopsis Product, Process and Plant Design Using Subcritical and Supercritical Fluids for Industrial Application by : Željko Knez
Download or read book Product, Process and Plant Design Using Subcritical and Supercritical Fluids for Industrial Application written by Željko Knez and published by Springer Nature. This book was released on 2023-07-03 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes cutting edge technology using supercritical fluids for the production of foodstuffs, medicals, and polymers. It illustrates the importance and use of basic data for design and operation at industrial scale units. The book's authors have several decades of experience of applied research on how to develop large scale industrial units. It provides readers complete insight in design and operation of industrial high pressure process plants. The book is written so it may be understood for people (with?) little or no background on high pressure process technology. It will provide information on how some foodstuffs, medicals, polymers are produced using high pressure technologies. The book demonstrates the importance of fundamental data, how to measure them and how to apply them to design industrial plants. At the same time, it also serves as a textbook for students.
Book Synopsis Advanced Supercritical Fluids Technologies by : Igor Pioro
Download or read book Advanced Supercritical Fluids Technologies written by Igor Pioro and published by BoD – Books on Demand. This book was released on 2020-05-20 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using SuperCritical Fluids (SCFs) in various processes is not new, because Mother Nature has been processing minerals in aqueous solutions at critical and supercritical pressures for billions of years. Somewhere in the 20th century, SCFs started to be used in various industries as working fluids, coolants, chemical agents, etc. Written by an international team of experts and complete with the latest research, development, and design, Advanced Supercritical Fluids Technologies is a unique technical book, completely dedicated to modern and advanced applications of supercritical fluids in various industries.Advanced Supercritical Fluids Technologies provides engineers and specialists in various industries dealing with SCFs as well as researchers, scientists, and students of the corresponding departments with a comprehensive overview of the current status, latest trends and developments of these technologies.Dr Igor Pioro is a professor at the University of Ontario Institute of Technology, Canada, and the Founding Editor of the ASME Journal of Nuclear Engineering and Radiation Science.
Download or read book Supercritical Fluids written by E. Kiran and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supercritical fluids are neither gas nor liquid, but can be compressed gradually from low to high density and they are therefore interesting and important as tunable solvents and reaction media in the chemical process industry. By adjusting the density the properties of these fluids can be customised and manipulated for a given process - physical or chemical transformation. Separation and processing using supercritical solvents such as CO2 are currently on-line commercially in the food, essential oils and polymer industries. Many agencies and industries are considering the use of supercritical water for waste remediation. Supercritical fluid chromatography represents another, major analytical application. Significant advances have recently been made in materials processing, ranging from particle formation to the creation of porous materials. The chapters in this book provide tutorial accounts of topical areas centred around: (1) phase equilibria, thermodynamics and equations of state; (2) critical behaviour, crossover effects; (3) transport and interfacial properties; (4) molecular modelling, computer simulation; (5) reactions, spectroscopy; (6) phase separation kinetics; (7) extractions; (8) applications to polymers, pharmaceuticals, natural materials and chromatography; (9) process scale-up.
Book Synopsis Supercritical Fluid Foaming by : Matthew S. Purcell
Download or read book Supercritical Fluid Foaming written by Matthew S. Purcell and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Polymer Nanocomposite Foams by : Vikas Mittal
Download or read book Polymer Nanocomposite Foams written by Vikas Mittal and published by CRC Press. This book was released on 2013-10-18 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advancements in polymer nanocomposite foams have led to their application in a variety of fields, such as automotive, packaging, and insulation. Employing nanocomposites in foam formation enhances their property profiles, enabling a broader range of uses, from conventional to advanced applications. Since many factors affect the generation of nanost
Book Synopsis Controlled Foaming of Polystyrene Using Supercritical CO2 by : Christopher M. Stafford
Download or read book Controlled Foaming of Polystyrene Using Supercritical CO2 written by Christopher M. Stafford and published by . This book was released on 2002 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Polymer-supercritical Fluid Systems and Foams (P-(SF)2) by : Japan Society of Polymer Processing
Download or read book Polymer-supercritical Fluid Systems and Foams (P-(SF)2) written by Japan Society of Polymer Processing and published by . This book was released on 2003 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Supercritical Carbon Dioxide by : Maartje F. Kemmere
Download or read book Supercritical Carbon Dioxide written by Maartje F. Kemmere and published by John Wiley & Sons. This book was released on 2006-05-12 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, supercritical fluids have emerged as more sustainable alternatives for the organic solvents often used in polymer processes. This is the first book emphasizing the potential of supercritical carbon dioxide for polymer processes from an engineering point of view. It develops a state-of-the-art overview on polymer fundamentals, polymerization reactions and polymer processing in supercritical carbon dioxide. The book covers topics in a multidisciplinary approach starting from polymer chemistry and thermodynamics, going through monitoring, polymerization processes and ending with polymer shaping and post-processing. The authors are internationally recognized experts from different fields in polymer reaction engineering in supercritical fluids. The book was initiated by the Working Party on Polymer Reaction Engineering of the European Federation of Chemical Engineering and further renowned international experts.
Book Synopsis Innovative and Emerging Technologies for Textile Dyeing and Finishing by : Luqman Jameel Rather
Download or read book Innovative and Emerging Technologies for Textile Dyeing and Finishing written by Luqman Jameel Rather and published by John Wiley & Sons. This book was released on 2021-02-17 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the public enhanced awareness towards eco-preservation, eco-safety and health concerns, environmentally benign, nontoxic and sustainable bioresource materials produced mainly from non-food crops have revolutionized all industrial sectors particularly textile industry. In recent years, textile industries in developed countries are getting increasing interest in global interest due to the varied and changing world market conditions in terms of price, durability and fiber mixtures as well as design, colors, weight, ease of handling and product safety. The increasing environmental and health concerns owing to the use of large quantities of water and hazardous chemicals in conventional textile finishing processes lead to the design and development of new dyeing strategies and technologies. Effluents produced from these textiles wet processing industries are very diverse in chemical composition, ranging from inorganic finishing agents, surfactants, chlorine compounds, salts, total phosphate to polymers and organic products. This aspect forced western countries to exploit their high technical skills in the advancements of textile materials for high quality technical performances, and development of cleaner production technologies for cost effective and value-added textile materials. Therefore, vast and effective research investigations have been undertaken all over the world to minimize the negative environmental impact of synthetic chemical agents through the sustainable harvest of eco-friendly bioresource materials. The book will discuss following research developments in academic and industry: Improvement in dye extraction and its applications Impact of textile dyeing on environment Textile finishing by natural and ecofriendly means Natural dyes as environmental-friendly bioresource products Textile effluent remediation via physical, chemical and biological processes.
Book Synopsis Introduction to Supercritical Fluids by : Richard Smith
Download or read book Introduction to Supercritical Fluids written by Richard Smith and published by Newnes. This book was released on 2013-12-08 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text provides an introduction to supercritical fluids with easy-to-use Excel spreadsheets suitable for both specialized-discipline (chemistry or chemical engineering student) and mixed-discipline (engineering/economic student) classes. Each chapter contains worked examples, tip boxes and end-of-the-chapter problems and projects. Part I covers web-based chemical information resources, applications and simplified theory presented in a way that allows students of all disciplines to delve into the properties of supercritical fluids and to design energy, extraction and materials formation systems for real-world processes that use supercritical water or supercritical carbon dioxide. Part II takes a practical approach and addresses the thermodynamic framework, equations of state, fluid phase equilibria, heat and mass transfer, chemical equilibria and reaction kinetics of supercritical fluids. Spreadsheets are arranged as Visual Basic for Applications (VBA) functions and macros that are completely (source code) accessible for students who have interest in developing their own programs. Programming is not required to solve problems or to complete projects in the text. Property worksheets/spreadsheets that are easy to use in learning environments Worked examples with Excel VBA Worksheet functions allow users to design their own processes Fluid phase equilibria and chemical equilibria worksheets allow users to change conditions, study new solutes, co-solvents, chemical systems or reactions
Book Synopsis Development of Biopolymer Foams by Supercritical CO2 Assisted Processes by : Jennifer Andrea Villamil Jiménez
Download or read book Development of Biopolymer Foams by Supercritical CO2 Assisted Processes written by Jennifer Andrea Villamil Jiménez and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polylactic acid (PLA) is a commercially available biopolymer that is of great interest in various industrial fields, especially for the production of polymer foams. With the development of technologies that seek to reduce the environmental impact of processes, chemical foaming agents are being replaced by physical agents, mainly supercritical fluids (SCF) such as carbon dioxide (sc-CO2). Currently, the mass production of low-density PLA foams with uniform microcellular morphology using SCFs as foaming agents is a challenge. This is mainly due to the low melt strength of PLA and its slow crystallisation kinetics. Among the different options to improve the characteristics of PLA, combining it with different types of fillers has great potential to improve the foaming but also the performance of the final composites. Moreover, the operating conditions and the characteristics of the fillers such as their size, aspect ratio, and surface chemistry play an important role in the final foam morphology. In this context, this work focused on the fabrication of composite foams from PLA and cellulose fibres usingsupercritical CO2 (sc-CO2) as foaming agent. The first part of the work was devoted to the formulation of the composites and the study of their properties, in particular the effect of the fibres on crystallinity. These composites were then foamed by a batch process and a continuous sc-CO2 assisted extrusion process. The effect of cellulose content and aspect ratio (length/diameter) on the solidification and crystallisation kinetics of PLA was studied. These results are used as a means of understanding the morphology and characteristics of the PLA-cellulose composite foams produced.
Download or read book Polymeric Foams written by Shau-Tarng Lee and published by CRC Press. This book was released on 2008-12-24 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores the Latest Developments in Polymeric FoamsSince the 1960s polymeric foams have grown into a solid industry that affects almost every aspect of modern life. The industry has weathered the energy crisis in the 70s, ozone issues in the 80s, and recycle/reuse in the 90s. However, the pace of development and social climate is rapidly changing a
