Silane Adhesion Promoters in Mineral-filled Composites PDF Download

Author: Union Carbide Corporation. Adhesion Promoters
Publisher:
ISBN:
Category : Adhesives
Languages : en
Pages : 37

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Author: Edwin P. Plueddemann
Publisher: Springer Science & Business Media
ISBN: 1489903429
Category : Science
Languages : en
Pages : 238

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* It has been rumored that a bumble bee has such aerodynamic deficiencies that it should be incapable of flight. Fiberglass-reinforced polymer com posites, similarly, have two (apparently) insurmountable obstacles to per formance: 1) Water can hydrolyze any conceivable bond between organic and inorganic phase, and 2) Stresses across the interface during temperature cycling (resulting from a mismatch in thermal expansion coefficients) may exceed the strength of one of the phases. Organofunctional silanes are hybrid organic-inorganic compounds that are used as coupling agents across the organic-inorganic interface to help overcome these two obstacles to composite performance. One of their functions is to use the hydrolytic action of water under equilibrium condi tions to relieve thermally induced stresses across the interface. If equilib rium conditions can be maintained, the two problems act to cancel each other out. Coupling agents are defined primarily as materials that improve the practical adhesive bond of polymer to mineral. This may involve an increase in true adhesion, but it may also involve improved wetting, rheology, and other handling properties. The coupling agent may also modify the inter phase region to strengthen the organic and inorganic boundary layers.

Author: Kash L. Mittal
Publisher: CRC Press
ISBN: 1466562218
Category : Science
Languages : en
Pages : 292

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This book embodies the proceedings of the Second International Symposium on Silanes and other Adhesion Promoters held in Newark, New Jersey, October 21--23, 1998. Silanes are the most popular and widely used coupling agents (or adhesion promoters) to promote adhesion between dissimilar materials in a variety of situations, e.g. coating technology, adhesive bonding, reinforced composites, etc. Since the first symposium on this topic in 1991, there had been a tremendous R&D activity in developing new and more effective adhesion promoters and in understanding and optimising the performance of available coupling agents. The technical program for the symposium contained 36 papers and reflected both overviews and original research contributors and the presenters hailed from academia, industry and other research laboratories. Many different aspects of coupling agents were discussed, and both fundamental and applied aspects were accorded due coverage. In addition to formal presentations, there were brisk and lively discussions throughout the symposium, and this event provided an opportunity for cross-pollination of ideas in the broad arena of adhesion promoters. This present volume contains 18 papers by experts from academia, industry and other research laboratories. All manuscripts were subjected to rigorous peer review and were suitably revised before inclusion in this volume. The book is divided into two parts as follows: Part 1. Silane Coupling Agents; and Part 2: Non-silane Coupling Agents/Adhesion Promotors. The topics covered include: silane adhesion prompters for hydrosilylation cure systems; sterically hindered silanes; study of silanes hydrolysis; adsorption of silanes on different substrates; interaction of water with silane films studied by neutron reflection; characterization of glass fiber sizings; silanes as dispersion promoters; corrosion protection of metals by silanes; surface 'Intelligraft' as a new class of adhesion promoters; hydroxymethylated resorcinol, sol-gels, and -diketone functionalised polymers as adhesion promoters; and plasma deposition of silanes.

Author: Hanafi Ismail
Publisher: CRC Press
ISBN: 1000465233
Category : Technology & Engineering
Languages : en
Pages : 276

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Mineral-filled polymer composites are increasingly used for various applications, including automotive, construction, biomedical, maritime, sport and ballistic, due to the advantages of low cost, light weight, excellent rigidity and high mechanical strength. One of two volumes comprising the Mineral-Filled Polymer Composites Handbook, this volume provides an overview of the latest research, trends, applications and future directions of advanced mineral fiber-reinforced polymer composites. It focuses specifically on material selection, processing and applications. This book: Emphasizes the principles governing the behavior of mineral-filled composite materials in the field of engineering and their applications Covers systematic material selection tools such as analytical hierarchy process (AHP), analytical network process (ANP), and technique of ranking preferences by similarity of the ideal solution (TOPSIS) Reviews the use of these materials for various engineering applications Features chapters looking at fabrication techniques and frictional properties Details current research in polymer nanocomposites and particulate polymer composites This book serves as an excellent reference guide for researchers, advanced students, academics and industry professionals interested in the synthesis of mineral-filled polymer and biopolymer composites, as well as those pursuing research in the broad fields of composite materials, polymers, organic/inorganic hybrid materials and nano-assembly.

Author: Sina Ebnesajjad
Publisher: William Andrew
ISBN: 0323265049
Category : Technology & Engineering
Languages : en
Pages : 360

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Aimed at engineers and materials scientists in a wide range of sectors, this book is a unique source of surface preparation principles and techniques for plastics, thermosets, elastomers, ceramics and metals bonding. With emphasis on the practical, it draws together the technical principles of surface science and surface treatments technologies to enable practitioners to improve existing surface preparation processes to improve adhesion and, as a result, enhance product life. This book describes and illustrates the surface preparations and operations that must be applied to a surface before acceptable adhesive bonding is achieved. It is meant to be an exhaustive overview, including more detailed explanation where necessary, in a continuous and logical progression. The book provides a necessary grounding in the science and practice of adhesion, without which adequate surface preparation is impossible. Surface characterization techniques are included, as is an up-to-date assessment of existing surface treatment technologies such as Atmospheric Plasma, Degreasing, Grit blasting, laser ablation and more. Fundamental material considerations are prioritised over specific applications, making this book relevant to all industries using adhesives, such as medical, automotive, aerospace, packaging and electronics. This second edition represents a full and detailed update, with all major developments in the field included and three chapters added to cover ceramic surface treatment, plasma treatment of non-metallic materials, and the effect of additives on surface properties of plastics. A vital resource for improving existing surface treatment processes to increase product life by creating stronger, more durable adhesive bonds Relevant across a variety of industries, including medical, automotive and packaging Provides essential grounding in the science of surface adhesion, and details how this links with the practice of surface treatment

Author: Sina Ebnesajjad
Publisher: William Andrew
ISBN: 1437744621
Category : Science
Languages : en
Pages : 449

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Handbook of Adhesives and Surface Preparation provides a thoroughly practical survey of all aspects of adhesives technology from selection and surface preparation to industrial applications and health and environmental factors. The resulting handbook is a hard-working reference for a wide range of engineers and technicians working in the adhesives industry and a variety of industry sectors that make considerable use of adhesives. Particular attention is given to adhesives applications in the automotive, aerospace, medical, dental and electronics sectors. A handbook that truly focuses on the applied aspects of adhesives selection and applications: this is a book that won't gather dust on the shelf Provides practical techniques for rendering materials surfaces adherable Sector-based studies explore the specific issues for automotive and aerospace, medical, dental and electronics

Author: E.P. Plueddemann
Publisher: Springer Science & Business Media
ISBN: 1489920706
Category : Science
Languages : en
Pages : 263

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* Much progress has been made in the last 8 years in understanding the theory and practice of silane coupling agents. A major advance in this direction was the measurement of true equilibrium constants for the hydroly sis and formation of siloxane bonds. Equilibrium constants for bond reten tion are so favorable that a silane coupling agent on silica has a thousandfold advantage for bond retention in the presence of water over an alkoxysilane bond formed from hydroxy-functional polymers and silica. In practice, the bonds of certain epoxies to silane-primed glass resist debonding by water about a thousand times as long as the epoxy bond to unprimed glass. Oxane bonds of silane coupling agents to metal oxides seem to follow the same mechanism of equilibrium hydrolysis and rebonding, although equilibrium constants have not been measured for individual metal-oxygen silicon bonds. This suggests, however, that methods of improving bond retention to glass will also improve the water resistance of bonds to metals. of standard coupling agents with a hydrophobic silane or one Modification with extra siloxane cross-linking have improved the water resistance of bonds to glass and metals another hundredfold over that obtained with single coupling agents.

Author: Kash L. Mittal
Publisher: CRC Press
ISBN: 9004193324
Category : Science
Languages : en
Pages : 362

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The topic of silanes and other coupling agents/adhesion promoters is of tremendous contemporary interest because of their application in many and varied technologically important areas ranging from coatings to reinforced composites to dentistry to biomedical (e.g., for bonding nucleotides to the so-called a gene chipsa ). In addition to their tra

Author: Myer Kutz
Publisher: William Andrew
ISBN: 0323390412
Category : Technology & Engineering
Languages : en
Pages : 786

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Applied Plastics Engineering Handbook: Processing, Materials, and Applications, Second Edition, covers both the polymer basics that are helpful to bring readers quickly up-to-speed if they are not familiar with a particular area of plastics processing and the recent developments that enable practitioners to discover which options best fit their requirements. New chapters added specifically cover polyamides, polyimides, and polyesters. Hot topics such as 3-D printing and smart plastics are also included, giving plastics engineers the information they need to take these embryonic technologies and deploy them in their own work. With the increasing demands for lightness and fuel economy in the automotive industry (not least due to CAFÉ standards), plastics will soon be used even further in vehicles. A new chapter has been added to cover the technology trends in this area, and the book has been substantially updated to reflect advancements in technology, regulations, and the commercialization of plastics in various areas. Recycling of plastics has been thoroughly revised to reflect ongoing developments in sustainability of plastics. Extrusion processing is constantly progressing, as have the elastomeric materials, fillers, and additives which are available. Throughout the book, the focus is on the engineering aspects of producing and using plastics. The properties of plastics are explained, along with techniques for testing, measuring, enhancing, and analyzing them. Practical introductions to both core topics and new developments make this work equally valuable for newly qualified plastics engineers seeking the practical rules-of-thumb they don't teach you in school and experienced practitioners evaluating new technologies or getting up-to-speed in a new field. Presents an authoritative source of practical advice for engineers, providing guidance from experts that will lead to cost savings and process improvements Ideal introduction for both new engineers and experienced practitioners entering a new field or evaluating a new technology Updated to include the latest technology, including 3D Printing, smart polymers, and thorough coverage of biopolymers and biodegradable plastics

Author:
Publisher:
ISBN:
Category : Patent laws and legislation
Languages : en
Pages : 2984

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