Update on Syntactic Foams

Update on Syntactic Foams PDF

Author: Bibin John

Publisher: Smithers Rapra Technology

Published: 2010

Total Pages: 132

ISBN-13: 9781847351203

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Syntactic foams are polymer composites obtained by dispersing hollow spheres in a matrix. They have excellent properties such as low density, high specific strength, low moisture absorption, lower thermal coefficient of expansion, and in some case radar or sonar transparency for use in Stealth technology. One of their biggest advantages is the fact that they can be tailored to have the properties necessary for a specific product. Syntactic foams uses include: marine applications, aerospace, ground vehicles, and sports applications (snow skis and soccer balls). In fact, they can be used for anything that needs a high strength material. Update on Syntactic Foams will be of interest to all those who produce polymer products that need very high strength due to the adverse conditions that they are used in, as well as manufacturers of raw materials used in these products. This Update gives the reader a good insight into the properties, manufacture and uses of syntactic foams. It covers the basics of syntactic foams including the types of microballoons used, foam structure, methods of synthesis and the properties. It also covers syntactic foams based on different types of resin systems such as epoxy, phenolics, cyanate ester and so on. This Update also has information recent developments in the field such as fibre reinforcement, nanoclay reinforcement, functionally grading of foams, rubberisation, syntactic foam core sandwich composites and cement-based syntactic foams, as well as on the appplications of syntactic foams.

Handbook of Thermoset Plastics

Handbook of Thermoset Plastics PDF

Author: Bibin John

Publisher: Elsevier Inc. Chapters

Published: 2013-11-28

Total Pages: 69

ISBN-13: 0128090723

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Syntactic foams are particulate polymer matrix composite materials consisting of hollow microspheres dispersed in a matrix. The matrix used in syntactic foams can be polymer, metal, or ceramic. Polymer matrices, particularly the thermosetting polymers, have been the most widely accepted matrices in syntactic foams. From the processing and application point of view, thermosetting syntactic foams have many advantages compared to thermoplastic ones. This chapter deals with syntactic foams based on various thermosetting resins and the chemistry of the resin systems. The resin systems are mainly phenolic, epoxy, cyanate ester, siloxane, polybenzoxazine, bismaleimide, and their blends. Apart from a brief chemistry of the parent resin systems, their syntactic foams have been described in detail. The aspects discussed are their processing, physical, thermal, and mechanical properties, applications, and degradation. Their properties can be engineered by a choice of matrix, microcell structure and its concentration, reinforcement, toughners, etc. While the thermal and thermo-physical characteristics are dictated by resin, mechanical and fracture characteristics are decided by both components. While epoxy, cyanate ester, and other such compounds provide structural syntactic foams, phenolics and their new generation versions provide thermo-structural materials. Syntactic foam ablators have made possible interplanetary space missions. Novel engineering concepts like lightweight self-healing give scope for extended applications of these systems. The recent advances in these areas are also discussed. These special materials with high specific strength are slated to replace conventional structural and thermo-structural materials in related engineering applications ranging from domestic to aerospace and defense.

Reinforced Polymer Matrix Syntactic Foams

Reinforced Polymer Matrix Syntactic Foams PDF

Author: Nikhil Gupta

Publisher: Springer Science & Business Media

Published: 2013-09-21

Total Pages: 85

ISBN-13: 3319012436

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Reinforced Syntactic Foams: Effect of Nano and Micro-Scale Reinforcement examines the fabrication processes, mechanism of reinforcement, and structure-property correlations of reinforced syntactic foams. The authors present the state of the art in this field, compare the properties of various types of syntactic foam systems comprising different matrix, hollow particle, and reinforcement materials. The book further identifies theories useful in predicting the properties of reinforced syntactic foams and conducting parametric studies to understand the possibility for tailoring their properties.

Update on Syntactic Foams: Introduction; 2 Types of Syntactic Foams; 3 Recent Developments in the Field of Syntactic Foams; 4 Applications of Syntactic Foams; Abbreviations; Index

Update on Syntactic Foams: Introduction; 2 Types of Syntactic Foams; 3 Recent Developments in the Field of Syntactic Foams; 4 Applications of Syntactic Foams; Abbreviations; Index PDF

Author: Bibin John

Publisher:

Published: 2010

Total Pages: 134

ISBN-13: 9781847351210

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Syntactic foams are polymer composites obtained by dispersing hollow spheres in a matrix. They have excellent properties such as low density, high specific strength, low moisture absorption, lower thermal coefficient of expansion, and in some case radar or sonar transparency for use in Stealth technology. One of their biggest advantages is the fact that they can be tailored to have the properties necessary for a specific product. Syntactic foams uses include: marine applications, aerospace, ground vehicles, and sports applications (snow skis and soccer balls). In fact, they can be used for any.

Metal Matrix Syntactic Foams

Metal Matrix Syntactic Foams PDF

Author: Nikhil Gupta

Publisher: DEStech Publications, Inc

Published: 2014-07-01

Total Pages: 372

ISBN-13: 1932078835

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Complete guide for materials, engineering, modeling and processing of novel syntactic material Lightweight metal-type foams for aeronautical, recreational and electronic applications Focused on a new type of material, the book investigates the elements, synthesis and practical applications of metal matrix syntactic foams, which share properties of foams and metal matrix composites. The text reviews how syntactic foams are synthesized from different types of hollow particles and metal matrixes. Part one explains processing techniques such as solidification and powder metallurgy and discusses foams made from a variety of matrix metals. Part two compares different syntactic foams based on density and strain rate. Original experimental data and modeling information are provided that show how metal matrix syntactic foams can be used for lighter weight components in vehicles, as well as for sensors and biomaterials.

Cell Culture Engineering

Cell Culture Engineering PDF

Author: Wei-Shu Hu

Publisher: Springer

Published: 2006-08-16

Total Pages: 179

ISBN-13: 3540340076

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Since the introduction of recombinant human growth hormone and insulin a quarter century ago, protein therapeutics has greatly broadened the ho- zon of health care. Many patients suffering with life-threatening diseases or chronic dysfunctions, which were medically untreatable not long ago, can attest to the wonder these drugs have achieved. Although the ?rst generation of p- tein therapeutics was produced in recombinant Escherichia coli, most recent products use mammalian cells as production hosts. Not long after the ?rst p- duction of recombinant proteins in E. coli, it was realized that the complex tasks of most post-translational modi?cations on proteins could only be ef?ciently carried out in mammalian cells. In the 1990s, we witnessed a rapid expansion of mammalian-cell-derived protein therapeutics, chie?y antibodies. In fact, it has been nearly a decade since the market value of mammalian-cell-derived protein therapeutics surpassed that of those produced from E. coli. A common characteristic of recent antibody products is the relatively large dose required for effective therapy, demanding larger quantities for the treatment of a given disease. This, coupled with the broadening repertoire of protein drugs, has rapidly expanded the quantity needed for clinical applications. The increasing demand for protein therapeutics has not been met exclusively by construction of new manufacturing plants and increasing total volume capacity. More - portantly the productivity of cell culture processes has been driven upward by an order of magnitude in the past decade.

Composite Materials

Composite Materials PDF

Author: Kamal K. Kar

Publisher: Springer

Published: 2016-10-14

Total Pages: 694

ISBN-13: 3662495147

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Composite materials are used as substitutions of metals/traditional materials in aerospace, automotive, civil, mechanical and other industries. The present book collects the current knowledge and recent developments in the characterization and application of composite materials. To this purpose the volume describes the outstanding properties of this class of advanced material which recommend it for various industrial applications.

Handbook of Research on Advancements in Manufacturing, Materials, and Mechanical Engineering

Handbook of Research on Advancements in Manufacturing, Materials, and Mechanical Engineering PDF

Author: Burstein, Leonid

Publisher: IGI Global

Published: 2020-09-18

Total Pages: 462

ISBN-13: 1799849406

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Production, new materials development, and mechanics are the central subjects of modern industry and advanced science. With a very broad reach across several different disciplines, selecting the most forward-thinking research to review can be a hefty task, especially for study in niche applications that receive little coverage. For those subjects, collecting the research available is of utmost importance. The Handbook of Research on Advancements in Manufacturing, Materials, and Mechanical Engineering is an essential reference source that examines emerging obstacles in these fields of engineering and the methods and tools used to find solutions. Featuring coverage of a broad range of topics including fabricating procedures, automated control, and material selection, this book is ideally designed for academics; tribology and materials researchers; mechanical, physics, and materials engineers; professionals in related industries; scientists; and students.

Handbook of Thermoset Plastics

Handbook of Thermoset Plastics PDF

Author: Hanna Dodiuk

Publisher: William Andrew

Published: 2021-10-25

Total Pages: 1118

ISBN-13: 0323899943

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Handbook of Thermoset Plastics, Fourth Edition provides complete coverage of the chemical processes, manufacturing techniques and design properties of each polymer, along with its applications. This new edition has been expanded to include the latest developments in the field, with new chapters on radiation curing, biological adhesives, vitrimers, and 3D printing. This detailed handbook considers the practical implications of using thermoset plastics and the relationships between processing, properties and applications, as well as analyzing the strengths and weakness of different methods and applications. The aim of the book is to help the reader to make the right decision and take the correct action on the basis of informed analysis – avoiding the pitfalls the authors’ experience has uncovered. In industry, the book supports engineers, scientists, manufacturers and R&D professionals working with plastics. The information included will also be of interest to researchers and advanced students in plastics engineering, polymer chemistry, adhesives and coatings. Offers a systematic approach, guiding the reader through chemistry, processing methods, properties and applications of thermosetting polymers Includes thorough updates that discuss current practice and the new developments on biopolymers, nanotechnology, 3D printing, radiation curing and biological adhesives Uses case studies to demonstrate how particular properties make different polymers suitable for different applications Covers end-use and safety considerations