Low-Temperature Behaviour of Elastomers

Low-Temperature Behaviour of Elastomers PDF Author: Maya F. Bukhina
Publisher: BRILL
ISBN: 9004157204
Category : Science
Languages : en
Pages : 197

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Book Description
This book focuses on the effect the composition of rubbers and the conditions of their processing have on low-temperature resistance. It considers the nature and development of two physical processes, glass transition and crystallization, determining low-temperature behavior of elastomers. The book addresses the effects of deformation, pressure, and temperature on these processes. It discusses the contribution of different factors in frost-resistance of elastomeric materials and articles and the possibility of increasing frost-resistance by optimization of composition and design.

Low-Temperature Behaviour of Elastomers

Low-Temperature Behaviour of Elastomers PDF Author: Maya F. Bukhina
Publisher: BRILL
ISBN: 9004157204
Category : Science
Languages : en
Pages : 197

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Book Description
This book focuses on the effect the composition of rubbers and the conditions of their processing have on low-temperature resistance. It considers the nature and development of two physical processes, glass transition and crystallization, determining low-temperature behavior of elastomers. The book addresses the effects of deformation, pressure, and temperature on these processes. It discusses the contribution of different factors in frost-resistance of elastomeric materials and articles and the possibility of increasing frost-resistance by optimization of composition and design.

Low-Temperature Behaviour of Elastomers

Low-Temperature Behaviour of Elastomers PDF Author: Bukhina
Publisher: CRC Press
ISBN: 9047422422
Category : Technology & Engineering
Languages : en
Pages : 193

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Book Description
This book focuses on the effect the composition of rubbers and the conditions of their processing have on low-temperature resistance. It considers the nature and development of two physical processes, glass transition and crystallization, determining low-temperature behavior of elastomers. The book addresses the effects of deformation, pressure, an

International Polymer Science and Technology

International Polymer Science and Technology PDF Author:
Publisher:
ISBN:
Category : Plastics
Languages : en
Pages : 500

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Book Description


Developments in Thermoplastic Elastomers

Developments in Thermoplastic Elastomers PDF Author: K. E. Kear
Publisher: iSmithers Rapra Publishing
ISBN: 9781859574331
Category : Science
Languages : en
Pages : 158

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Book Description
Thermoplastic elastomers (TPEs) have the elastic behaviour of rubber and the processability of thermoplastics. The Freedonia Group has forecast that demand will expand by 6.4% per year to around 2.15 million tons in 2006. There is potential for these new, exciting materials to expand into the much larger thermoset rubber markets. This review includes comparisons between the two material types. There are three major types of TPE: block copolymers, rubber/plastic blends and dynamically vulcanised rubber/plastic alloys known as thermoplastic vulcanisates. The chemistry of these materials and how.

Mechanical Engineer's Reference Book

Mechanical Engineer's Reference Book PDF Author: Edward H. Smith
Publisher: Butterworth-Heinemann
ISBN: 1483102572
Category : Technology & Engineering
Languages : en
Pages : 1190

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Book Description
Mechanical Engineer's Reference Book, 12th Edition is a 19-chapter text that covers the basic principles of mechanical engineering. The first chapters discuss the principles of mechanical engineering, electrical and electronics, microprocessors, instrumentation, and control. The succeeding chapters deal with the applications of computers and computer-integrated engineering systems; the design standards; and materials' properties and selection. Considerable chapters are devoted to other basic knowledge in mechanical engineering, including solid mechanics, tribology, power units and transmission, fuels and combustion, and alternative energy sources. The remaining chapters explore other engineering fields related to mechanical engineering, including nuclear, offshore, and plant engineering. These chapters also cover the topics of manufacturing methods, engineering mathematics, health and safety, and units of measurements. This book will be of great value to mechanical engineers.

Pressure-Sensitive Formulation

Pressure-Sensitive Formulation PDF Author: Istvan Benedek
Publisher: CRC Press
ISBN: 1000083098
Category : Science
Languages : en
Pages : 373

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Book Description
Growing interest in the formulation of pressure-sensitive adhesives as described in the first edition of this book ( Pressure-Sensitive Formulation, VSP, 2000) required a new, enlarged edition including the design of pressure-sensitive adhesives as a separate volume. Developments in the understanding of pressure sensitivity were necessary to use macromolecular chemistry for pressure-sensitive design. Such developments include polymer physics and contact mechanics. Progress in coating technology, especially in in-line coating- and synthesis, opened new ways for the design of pressure-sensitive adhesives and products as well. Actually, pressure-sensitive-products with and without adhesives compete requiring a broad variety of material formulations and the corresponding manufacturing technology. The first volume of the book examines the theoretical aspects of pressure-sensitive design, based on macromolecular chemistry, macromolecular physics, rheology and contact mechanics. The second volume describes the practical aspects of pressure-sensitive design and formulation, related to product application. The advances in the various domains are described by specialists.

The Refrigeration Journal

The Refrigeration Journal PDF Author:
Publisher:
ISBN:
Category : Refrigeration and refrigerating machinery
Languages : en
Pages : 584

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Book Description


Technical Report - Jet Propulsion Laboratory, California Institute of Technology

Technical Report - Jet Propulsion Laboratory, California Institute of Technology PDF Author: Jet Propulsion Laboratory (U.S.)
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 598

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Book Description


Constitutive Modelling and Failure Prediction for Silicone Adhesives in Façade Design

Constitutive Modelling and Failure Prediction for Silicone Adhesives in Façade Design PDF Author: Michael Drass
Publisher: Springer Nature
ISBN: 3658292555
Category : Technology & Engineering
Languages : en
Pages : 304

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Book Description
This book provides readers with an elementary understanding of the material behavior of structural silicones in façades. Based on extensive experimental investigations on a transparent structural silicone adhesive (TSSA), the material behavior, failure, and microscopic effects such as stress whitening, cavitation failure, and the Mullins effect are analyzed. In turn, novel hyperelastic material models are developed to account for nonlinear material behavior under arbitrary deformations. The development of a volumetric hyperelastic model makes it possible for the first time to approximate the structural behavior of TSSA under constrained tensile load and cavitation. The material models discussed here were implemented in a finite element code for validation, and their quality was confirmed by three-dimensional numerical simulations, in which an additional stretch-based failure criterion was evaluated for failure prediction. The numerical studies are in good agreement with the experimental results.

Polyurethane Elastomers

Polyurethane Elastomers PDF Author: Cristina Prisacariu
Publisher: Springer Science & Business Media
ISBN: 3709105145
Category : Technology & Engineering
Languages : en
Pages : 276

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Book Description
A comprehensive account of the physical / mechanical behaviour of polyurethanes (PU ́s) elastomers, films and blends of variable crystallinity. Aspects covered include the elasticity and inelasticity of amorphous to crystalline PUs, in relation to their sensitivity to chemical and physical structure. A study is made of how aspects of the constitutive responses of PUs vary with composition: the polyaddition procedure, the hard segment, soft segment and chain extender (diols and diamines) are varied systematically in a large number of systems of model and novel crosslinked andthermoplastic PUs. Results will be related to: microstructural changes, on the basis of evidence from x-ray scattering (SAXS and WAXS), and also dynamic mechanical analyses (DMA), differential scanning calorimetry (DSC) and IR dichroism. Inelastic effects will be investigated also by including quantitative correlations between the magnitude of the Mullins effect and the fractional energy dissipation by hysteresis under cyclic straining, giving common relations approached by all the materials studied. A major structural feature explored is the relationship between the nature of the hard segment (crystallising or not) and that of the soft segments. Crystallinity has been sometimes observed in the commercial PUs hard phase but this is usually limited to only a few percent for most hard segment structures when solidified from the melt. One particular diisocyanate, 4,4’-dibenzyl diisocyanate (DBDI) that, in the presence of suitable chain extenders ( diols or diamines), gives rise to significant degrees of crystallinity [i-iii] and this is included in the present work. Understanding the reaction pathways involved, in resolving the subtle morphological evolution at the nanometre level, and capturing mathematically the complex, large-deformation nonlinear viscoelastic mechanical behaviour are assumed to bring new important insights in the world basic research in polyurethanes and towards applied industrial research in this area.