Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Monodisperse Highly Ordered And Polydisperse Biobased Solid Foams
Download Monodisperse Highly Ordered And Polydisperse Biobased Solid Foams full books in PDF, epub, and Kindle. Read online Monodisperse Highly Ordered And Polydisperse Biobased Solid Foams ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Monodisperse Highly Ordered and Polydisperse Biobased Solid Foams by : Sébastien Andrieux
Download or read book Monodisperse Highly Ordered and Polydisperse Biobased Solid Foams written by Sébastien Andrieux and published by Springer Nature. This book was released on 2019-08-23 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the synthesis of chitosan-based solid foams using foam templating. Solid foams with pore sizes between a few micrometres and a few millimetres are widely used in a range of established and emerging applications, including filtration, catalysis, sound and thermal insulation, human protection, and tissue engineering. They are lightweight with large surface-to-volume ratios, and have excellent mechanical, acoustic, and thermal properties. However, most foaming processes are extremely complex, and there remains a lack of sound scientific understanding of—and therefore control over—the parameters that determine the properties of the material. One route towards tailor-made solid foams is liquid foam templating, where the liquid foam is generated first (with the desired structure) before being solidified into a solid foam with the desired structure. This book describes how liquid foam templating can be used to synthesise monodisperse solid foams as well as solid foams with a tuneable polydispersity.
Book Synopsis Highly Structured Polymer Foams from Liquid Foam Templates Using Millifluidic Lab-on-a-chip Techniques by : Aouatef Testouri
Download or read book Highly Structured Polymer Foams from Liquid Foam Templates Using Millifluidic Lab-on-a-chip Techniques written by Aouatef Testouri and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer foams belong to the solid foams family which are versatile materials, extensively used for a large number of applications such as automotive, packaging, sport products, thermal and acoustic insulators, tissue engineering or liquid absorbents. Composed of air bubbles entrapped in a continuous solid network, they combine the properties of the polymer with those of the foam to create an intriguing and complex material. Incorporating a foam into a polymer network not only allows one to use the wide range of interesting properties that the polymer offers, but also permits to profit from the advantageous properties of foam including lightness, low density, compressibility and high surface-to-volume ratio. Generally, the properties of polymer foams are strongly related to their density and their structure (bubble size and size distribution, bubble arrangement, open vs closed cells). Having a good control over foam properties is thus achieved by first controlling its density and structure.We developed a technique in which solid foams are generated essentially in a two-step process: a sufficiently stable liquid foam with well-controlled structural properties is generated in a first step, and then solidified in a second one. With such a two-step approach, the generation of solid foams can be divided into a number of well-separated sub-tasks which can be controlled and optimised separately. The transition from liquid to solid state is a sensitive issue of a great importance and therefore needs to be controlled with sufficient accuracy. It is essentially composed of three key steps: foam generation, mixing of reactants and foam solidification and requires the optimisation of foam stability in conjunction with an appropriate choice of both foaming time and solidification time. Furthermore, a good homogeneity of the polymer foam calls for a good mixing of the different reactants involved in the foaming and the polymerisation.A particularly powerful demonstration of the advantages of this approach is given by solidifying monodisperse liquid foams generated using millifluidic technique, in which all bubbles have the same size. In a liquid foam, equal-volume bubbles self-order into periodic, close-packed structures under gravity or confinement. As such, monodisperse foams provide simultaneous control over the size and the organisation of the pores in the final solid with an accuracy which is expected to give rise to a better understanding of the structure-property relationship of porous solids and to the development of new porous materials.We therefore aim to explore the new spectrum of properties, which polymer foams offer when we introduce an ordered structure into them since the most widely used polymer foams nowadays have disordered structures. The goal of our study is to demonstrate the feasibility of this two-step approach for different classes of polymers, including biomolecular hydrogel, superabsorbent polymer and polyurethane.For the generation of the structured polymer foams we use Lab-on-a-Chip technologies which allow the “shrinking” of large-scale set-ups to micro/millimetic scale. It permits also to perform “flow chemistry” in which the various liquid and gaseous ingredients of the foam are injected and mixed in a purpose-designed network of the micro- and millifluidic Lab-on-a-Chip. We adjust this approach according to the requirements of each polymer system, i.e. the foaming and the mixing techniques are chosen to fit the properties of each system, and can be exchanged to fit the properties of the studied systems.
Download or read book Foams written by Jacob Joseph Bikerman and published by Springer. This book was released on 1973 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book Foams: Theory and Industrial Applications, written by the undersigned and three collaborators and published in 1953, is still the only monograph on liquid foam in the English language. Naturally the science of foams had advanced in the intervening years so that a practically new book had to be prepared to give justice to the present state of our know ledge. This monograph has only one author and does not deal with solid foams, fire-fighting foams, and flotation, on which information is available elsewhere. The other applications of foam and its fundamental properties are reviewed at length and, whenever possible, attempts are made to reach the truth through a maze of conflicting evidence. February 1973 J. J. BIKERMAN Contents page Preface . v 1. General. Foam Films (Sections 1-22) 1 Foam Films 5 References 30 2. Formation and Structure (Sections 23-42) 33 Dispersion Methods 33 Condensation Methods 51 Foam Structure 59 References 62 3. Measurement of Foaminess (Sections 43-62) 65 Films and Bubbles 66 Foams. 76 References 94 4. Results of Foaminess Measurements (Sections 63-84) . 98 Poorly Foaming Liquids . 98 Strongly Foaming Liquids 108 Other Systems 132 References 140 5. Three-phase Foams (Sections 85-90) 149 References 157 6. Foam Drainage (Sections 91-106) 159 Experimental Data . 173 References 181 7. Mechanical Properties of Foams (Sections 107-122) 184 References 211 8. Optical Properties of Foams (Sections 123 -127) . 214 References 222 vii viii Contents 9.
Book Synopsis Bio-based Polymeric Foam from Soybean Oil and Carbon Dioxide by : Laetitia Mary Bonnaillie
Download or read book Bio-based Polymeric Foam from Soybean Oil and Carbon Dioxide written by Laetitia Mary Bonnaillie and published by ProQuest. This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymeric foams are complex gas/liquid/solid composite materials with variable density and numerous advantages over bulk polymers. Raw materials currently being foamed are principally petroleum-based. Research seeking new bio-based polymeric foams has developed biobased polyurethane foams from plant-oil triglyceride polyols, whose properties compare to that of petroleum-based insulating foams, and biodegradable starch foams, for use in the packaging industry. The goal of this dissertation is to develop a new type of biobased foam from plant oil that is both stronger and more resilient than starch foam and with a higher bio-content than biobased polyurethane foam. Acrylated epoxidized soybean oil (AESO) possesses a wide range of properties depending on its level of functionality, and was chosen in this work to design resilient, rigid polymeric foams with a high bio-content. During free-radical polymerization, AESO forms a cross-linked, thermosetting polymer network. Carbon dioxide has a high solubility in plant oils and was chosen as the blowing agent for AESO foam. We designed a new foaming process inspired by commercial foaming processes and modified for the AESO/CO 2 system. The monomer was saturated with CO 2 under pressure. Then, extracting the mixture through a heater triggered simultaneous foam expansion and polymerization. The architecture of cured foams showed strong dependency on the foaming procedure and process parameters (timing, pressures, temperatures). We targeted the production of solid foams with a homogeneous, small-celled structure, that confers better physical and mechanical properties. The aging behavior of liquid AESO/CO 2 foam revealed the mechanisms of cell growth and degradation before cure. During foam cure, conflicting interests between polymerization kinetics and foam integrity presented the major design difficulties. The process parameters and foaming procedure were optimized to produce foam with increased homogeneity, smaller cells, and lower density, and strong, semi-rigid thermoset foams with a bio-content superior to 80% were successfully obtained. These foams are good candidates for applications such as foam-core sandwich panels and tissue-scaffolds. Our new foaming process may also be applied to other triglyceride-based monomers and customized according to monomer functionality and desired foam architecture. Biobased foams with various densities, cellular structure, and mechanical properties may be produced.
Book Synopsis Monodisperse Emulsions as Template for Highly Structured Polymer Foams by : Aggeliki Quell
Download or read book Monodisperse Emulsions as Template for Highly Structured Polymer Foams written by Aggeliki Quell and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Foams written by Huijin Xu and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photonic Band Gap Materials by : C.M. Soukoulis
Download or read book Photonic Band Gap Materials written by C.M. Soukoulis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 725 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic band gap crystals offer unique ways to tailor light and the propagation of electromagnetic waves. In analogy to electrons in a crystal, EM waves propagating in a structure with a periodically-modulated dielectric constant are organized into photonic bands separated by gaps in which propagating states are forbidden. Proposed applications of such photonic band gap crystals, operating at frequencies from microwave to optical, include zero- threshold lasers, low-loss resonators and cavities, and efficient microwave antennas. Spontaneous emission is suppressed for photons in the photonic band gap, offering novel approaches to manipulating the EM field and creating high-efficiency light-emitting structures. Photonic Band Gap Materials identifies three most promising areas of research. The first is materials fabrication, involving the creation of high quality, low loss, periodic dielectric structures. The smallest photonic crystals yet fabricated have been made by machining Si wafers along (110), and some have lattice constants as small as 500 microns. The second area is in applications. Possible applications presented are microwave mirrors, directional antennas, resonators (especially in the 2 GHz region), filters, waveguides, Y splitters, and resonant microcavities. The third area covers fundamentally new physical phenomena in condensed matter physics and quantum optics. An excellent review of recent development, covering theoretical, experimental and applied aspects. Interesting and stimulating reading for active researchers, as well as a useful reference for non-specialists.
Book Synopsis Theory of Electrophoresis and Diffusiophoresis of Highly Charged Colloidal Particles by : Eric Lee
Download or read book Theory of Electrophoresis and Diffusiophoresis of Highly Charged Colloidal Particles written by Eric Lee and published by Academic Press. This book was released on 2018-11-30 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theory of Electrophoresis and Diffusiophoresis of Highly Charged Colloidal Particles discusses the electrophoretic and diffusiophoretic motions of various colloidal entities, such as rigid particles, liquid droplets, gas bubbles, and porous particles, focusing on the motion-deterring double-layer polarization effect pertinent to highly charged particles, with the lowly charged ones serving as the limiting cases. Boundary effects such as those from a cylindrical pore, a solid plane, or an air-water interface are analyzed as well for the electrophoretic motion of the various particles considered. Dynamic electrophoresis is also explored and treated.The contents are suitable for researchers, graduate students, or senior college students with some basic background of colloid science and transport phenomena. As there is no closed-form analytical formula in general for the situation of highly charged particles, the results are presented with extensive figures and plots as well as tables under various electrokinetic situations of interest to facilitate the possible use of interested readers. - Provides a reliable quantitative prediction of highly charged particles motion with easy-to-apply charts and in-depth understanding of the underlying mechanisms - Offers an extensive treatment of direct quantitative predication for non-rigid systems, such as porous particles, liquid drops, and gels, which is especially valuable in proteins and DNA research - Discusses highly charged systems with a nearby boundary of practical interests, such as a pore, a solid plane, or an air-water interface, which is of vital interest in fields such as microfluidic operations and biomedical engineering - Affords special attention to the polarization effect
Book Synopsis Porous Polymers by : Michael S. Silverstein
Download or read book Porous Polymers written by Michael S. Silverstein and published by John Wiley & Sons. This book was released on 2011-04-19 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the various aspects of the porous polymer field into one volume. It not only presents a fundamental description of the field, but also describes the state of the art for such materials and provides a glimpse into the future. Emphasizing a different aspect of the ongoing research and development in porous polymers, the book is divided into three sections: Synthesis, Characterization, and Applications. The first part of each chapter presents the basic scientific and engineering principles underlying the topic, while the second part presents the state of the art results based on those principles. In this fashion, the book connects and integrates topics from seemingly disparate fields, each of which embodies different aspects inherent in the diverse field of porous polymeric materials.
Book Synopsis Introduction to Industrial Polypropylene by : Dennis B. Malpass
Download or read book Introduction to Industrial Polypropylene written by Dennis B. Malpass and published by John Wiley & Sons. This book was released on 2012-07-02 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This introductory text is an important resource for new engineers, chemists, students, and chemical industry personnel to understand the technical aspects of polypropylene which is the 2nd largest synthetics polymer in manufactured output. The book considers the following topics: What are the principal types of polypropylene and how do they differ? What catalysts are used to produce polypropylene and how do they function? What is the role of cocatalysts and how have they evolved over the years? How are industrial polypropylene catalysts tested and the resultant polymer evaluated? What processes are used in the manufacture of polypropylene? What are the biopolymer alternatives to polypropylene? What companies are the major industrial manufacturers of polypropylene? What is the environmental fate of polypropylene?
Book Synopsis Natural Chelating Polymers by : Riccardo A. A. Muzzarelli
Download or read book Natural Chelating Polymers written by Riccardo A. A. Muzzarelli and published by Pergamon. This book was released on 1973 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
Book Synopsis Cellulose Chemistry and Properties: Fibers, Nanocelluloses and Advanced Materials by : Orlando J. Rojas
Download or read book Cellulose Chemistry and Properties: Fibers, Nanocelluloses and Advanced Materials written by Orlando J. Rojas and published by Springer. This book was released on 2016-02-25 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vincent Bulone et al.: Cellulose sources and new understanding of synthesis in plants Thomas Heinze et al.:Cellulose structure and properties Thomas Rosenau, Antje Potthast, Ute Henniges et al.: Recent developments in cellulose aging (degradation / yellowing / chromophore formation) Sunkyu Park et al.:Cellulose crystallinity Lina Zhang et al.:Gelation and dissolution behavior of cellulose Yoshiyuki Nishio et al.:Cellulose and derivatives in liquid crystals Alessandro Gandini, Naceur Belgacem et al.:The surface and in-depth modification of cellulose fibers Emily D. Cranston et al.:Interfacial properties of cellulose Herbert Sixta, Michael Hummel et al.Cellulose Fibers Regenerated from Cellulose Solutions in Ionic Liquids Qi Zhou et al.:Cellulose-based biocomposites Orlando Rojas et al.:Films of cellulose nanocrystals and nanofibrils Pedro Fardim et al.:Functional cellulose particles Wadood Hamad et al.:Cellulose Composites
Book Synopsis Eco-Friendly Adhesives for Wood and Natural Fiber Composites by : Mohammad Jawaid
Download or read book Eco-Friendly Adhesives for Wood and Natural Fiber Composites written by Mohammad Jawaid and published by Springer Nature. This book was released on 2021-01-21 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of eco-friendly resins and their composite materials covering their synthesis, sources, structures and properties for different industrial applications to support the ongoing research and development in eco-friendly and renewable commercial products. It provides comparative discussions on the properties of eco-friendly resins with other polymer composites. It is a useful reference on bio-based eco-friendly polymer resins, wood-based composites, natural fibers and biomass materials for the polymer scientists, engineers and material scientists.
Book Synopsis Heat Transfer in Polymer Composite Materials by : Nicolas Boyard
Download or read book Heat Transfer in Polymer Composite Materials written by Nicolas Boyard and published by John Wiley & Sons. This book was released on 2016-03-28 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses general information, good practices and examples about thermo-physical properties, thermo-kinetic and thermo-mechanical couplings, instrumentation in thermal science, thermal optimization and infrared radiation.
Book Synopsis Colloidal Particles at Liquid Interfaces by : Bernard P. Binks
Download or read book Colloidal Particles at Liquid Interfaces written by Bernard P. Binks and published by Cambridge University Press. This book was released on 2006-08-17 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: The understanding of how small solid particles operate at liquid interfaces is minimal. This book brings together the topics actively being investigated, with contributions from experts in the field. It will be of interest to researchers in chemistry, physics, chemical engineering, pharmacy, food science and materials science.
Book Synopsis Metal Nanoparticles in Microbiology by : Mahendra Rai
Download or read book Metal Nanoparticles in Microbiology written by Mahendra Rai and published by Springer Science & Business Media. This book was released on 2011-04-02 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following an introduction to biogenic metal nanoparticles, this book presents how they can be biosynthesized using bacteria, fungi and yeast, as well as their potential applications in biomedicine. It is shown that the synthesis of nanoparticles using microbes is eco-friendly and results in reproducible metal nanoparticles of well-defined sizes, shapes and structures. This biotechnological approach based on the process of biomineralization exploits the effectiveness and flexibility of biological systems. Chapters include practical protocols for microbial synthesis of nanoparticles and microbial screening methods for isolating a specific nanoparticle producer as well as reviews on process optimization, industrial scale production, biomolecule-nanoparticle interactions, magnetosomes, silver nanoparticles and their numerous applications in medicine, and the application of gold nanoparticles in developing sensitive biosensors.
Book Synopsis Intrinsically Conducting Polymers: An Emerging Technology by : M. Aldissi
Download or read book Intrinsically Conducting Polymers: An Emerging Technology written by M. Aldissi and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the majority of the papers presented at the NATO Ad vanced Research Workshop (ARW) held in Burlington, Vermont, USA on October 12-15, 1992. This ARW was the first of its kind to address the subject of intrinsically conducting polymers with an emphasis on processing and technological applications. The NATO ARW format was followed in that the subjects addressed here were limited in number but discussed in detail with the attendance being limited to a small number of selected scientists. The ARW brought together lecturers who are leaders in their respective fields from a wide range of NATO and non-NATO countries (a total of 11 countries) with the support of the NATO Scientific Affairs Division and some support from Champlain Cable Corporation. The total number of par ticipants was 33 and the number of presentations was 24. The speakers were chosen based on the topics selected for this workshop and repre sented industry, universities and government laboratories. The field of conducting polymers has grown rapidly during the past few years with important developments in materials processing and fabrica tion that brought about active research programs focusing on the use of these polymers as "smart" materials in technological applications and devices in academic and industrial research laboratories.
