This is an overview of the factors tyre compounders and engineers must consider when developing compounds for tyres. It discusses compounding ingredients for tyre rubbers by class including polymer types. The future of tyres in vehicles is also outlined. An additional indexed section containing several hundred abstracts from the Polymer Library provides useful references for further reading.
This report describes the current state-of-the-art in mixing from a practical viewpoint. It begins by offering historical background against which the latest developments are set. It considers both batch and continuous systems, containing details of key developments by equipment manufacturers, with the different concepts discussed in layman's terms. This report also summarises the range of mixing techniques applied in the industry as well as methods for monitoring mixing quality both off- and on-line are also covered. Recent academic research in rubber mixing is briefly considered, providing an indication of possible future practical advances in this field. This review of rubber mixing is supported by an indexed section containing several hundred key references and abstracts selected from the Rapra Abstracts database.
This book describes the different elastomers utilized in tyre retreading. Among others, it discusses reinforcing fillers in terms of their efficacy, the use of bonding agents, and their relevance to the tyre retreading process. The authors give specific guidelines for the practical compounding of different rubber compounds to make retread. A practical approach is also taken to describing the manufacturing technology used in tyre retreading.
Vehicle/Tire/Road Dynamics: Handling, Ride, and NVH presents the connection between NVH and conventional vehicle dynamics where both tire and road play a key role. In this book, there is a chapter for handling dynamics that provides an introduction to ride dynamics and a chapter for ride dynamics that provides an introduction to NVH, presenting better coherence and synergy between these major areas of vehicle/tire dynamics. Accompanying the fundamental theories, case studies are given to facilitate comprehension. In addition to the experimental implementations, the state-of-the-art approaches to simulating vehicle/tire dynamics are presented from the viewpoint of both industry and academia. This new book bridges the gap for experts in tire or pavement NVH (also tire-pavement interaction noise) and those who are experts in vehicle dynamics. Conventional vehicle dynamics (e.g., handling/braking/cornering) is focused on low-frequency performance while NVH (noise/vibration/harshness) is focused on high-frequency performance. There is also another area called "ride" (comfort/stability) which focuses on mid-frequency. Presents a closed loop system for vehicle dynamics, covering handling, riden and NVH. Provides insights into how intelligent tires will enhance autonomous vehicle control and optimize multiple performances, especially for electric vehicles. Demonstrates how pavement characteristics could greatly influence vehicle handling/ride/NVH and improve/balance these performances.
This book, Functional Nanocomposites and Their Applications, explains innovative developments in nanocomposites. It covers novel findings and various applications of nanocomposites in different emerging fields. Chapters cover several types of nanocomposites as well as their synthesis, manufacturing, characteristics, and applications. Special emphasis is given to innovative works on functional nanocomposites and their relevant areas of use. The authors depict the stability and functionality of nanocomposites and their applications in various sectors, such as industrial, structural, biomedical, etc. Nanocomposites in wastewater treatment, MnO2 and graphene nanostructures, computer modeling of structure and mechanical behavior, polythiophene nanocomposites, and other topics are covered in the chapters. Nanocomposites have a high surface-to-volume ratio and hence have strong mechanical characteristics, making them suitable for application in the automotive and construction sectors. Nanocomposites show better property enhancement over conventional composites i.e., properties such as electrical, thermal, mechanical, and barrier. They have good transparency and also reduce the property of flammability. Other uses include power tool housing, electronic covers, and so forth. This book will help readers easily understand the effective implementation of different types of nanocomposites, such as for environmental remediation, biomedical applications, lightweight designed goods with better mechanical, thermal, or chemical resistance qualities, etc. This book will be valuable for scientists and engineers both in academics and industry.
This is an expert overview on the topic of tyre recycling. It summarises current practices and the factors that have contributed to their growth and efficacy as viable, economically and environmentally sound methods of dealing with post-consumer tyres. The primary area of study of this report is the EU, but reports from the US have also been cited. Statistics from the EU markets, which illustrate changes in the industry since the inception of the European Tyre Recycling Association a decade ago are incorporated. 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.
This informative volume discusses recent advancements in the research and development in synthesis, characterization, processing, morphology, structure, and properties of advanced polymeric materials. With contributions from leading international researchers and professors in academic, government and industrial institutions, Advanced Polymeric Materials for Sustainability and Innovations has a special focus on eco-friendly polymers, polymer composites, nanocomposites, and blends and materials for traditional and renewable energy. In this book the relationship between processing-morphology-property applications of polymeric materials is well established. Recent advances in the synthesis of new functional monomers has shown strong potential in generating better property polymers from renewable resources. Fundamental advances in the field of nanocomposite blends and nanostructured polymeric materials in automotive, civil, biomedical and packaging/coating applications are the highlights of this book.
Elastomer-Based Composite Materials: Mechanical, Dynamic, and Microwave Properties and Engineering Applications is focused on elastomer-based composite materials comprising different types of reinforcing fillers. The book provides an informative examination of the possibilities for broadening the engineering applications of elastomer composites through using various types of hybrid fillers, ferrites, and ceramics, and also examines their synthesis and characterization. It discusses new hybrid fillers that have been synthesized by different techniques, e.g. impregnation of different substrates (carbon black, conductive carbon black, activated carbons, etc.) with silica or magnetite. These new fillers have been thoroughly characterized by standard techniques and by up-to-date methods, such as energy dispersive X-ray spectroscopy in scanning transmission electron microscopy (STEM-EDX), atomic absorption spectroscopy (AAS), and inductively coupled plasma–optical emission spectroscopy (ICP-OES). The effect of those fillers upon the curing properties, mechanical and dynamic parameters, electrical conductivity, and dielectric and microwave characteristics of elastomer-based composites is discussed in detail in this volume. The book also covers the influence of various types of ceramics (SiC, B4C, and TiB2) and barium and strontium hexaferrites upon the aforementioned properties of rubber composites in conjunction with a view toward solutions for environmental problems caused by waste tires. The book shows that pyrolysis-cum-water vapor is a suitable and environmentally friendly method for the conversion of the waste green tires into useful carbon-silica hybrid fillers. The properties of elastomer-based composites comprising different types of nanostructures (fullerenes, carbon nanotubes, graphene nanoplatelets), modified activated carbons, and calcined kaolin are also discussed. Special attention is paid to composites with lower levels of zinc oxide. The volume provides an abundance of knowledge on the detailed characterization of these fillers and on the curing, mechanical, dynamic mechanical, and dielectric and microwave properties of the elastomeric composites. The book surveys the most recent research activities of the authors, which will make it a vital reference source for scientists in both the academic and industrial sectors, as well as for individuals who are interested in rubber materials. It will be very useful for students, especially PhD students, scientists, lecturers, and engineers working or doing research in the field of polymer materials science, elastomer-based composites and nanocomposites and their engineering applications in the production of microwave absorbers and electromagnetic waves shielding materials, materials for electronics devices and telecommunications.
Rubber components are used in many demanding applications, from tyres and seals to gloves and medical devices, and failure can be catastrophic. This review of Rubber Product Failure outlines and illustrates the common causes of failure, while addressing ways of avoiding it. There has been increasing pressure to improve performance so that rubbers can be used at higher temperatures and in harsher environments. For example, the under-the-bonnet temperature has increased in some vehicles and new medical devices require longer lifetimes in potentially degrading biological fluids. The expectations of tyre performance in particular are increasing, and retreads have been in the spotlight for failures. The definition of failure depends on the application. For example, a racing car engine seal that lasts for one race may be acceptable, but in a normal car a life span of 10 years is more reasonable. If appearance is critical as in surface coatings and paints, then discolouration is failure, whilst in seals leakage is not acceptable. Each rubber product must be fit for the use specified by the consumer. Failure analysis is critical to product improvement. the cause of the problem can be much harder to find. It can range from a design fault to poor material selection, to processing problems, to manufacturing errors such as poor dimensional tolerances, to poor installation, product abuse and unexpected service conditions. The rubber technologist must become a detective, gathering evidence, understanding the material type and using deductive reasoning. Testing and analysis of failed materials and components add to the information available for failure analysis. For example, stored aged tyres appeared superficially to be alright for use, but on drum testing small cracks grew more quickly than in new tyres leading to rapid failure in service. Quality control procedures such as product inspection, testing and material quality checks can help to reach 100 percent reliability. In critical applications such as electricians' gloves for high voltage working, gloves are inspected before each use, while engine seals may be routinely replaced before the expected lifetime to avoid problems. in the literature is not high. However, several reviews have been written on specific products and references can be found at the end of this review. Around 400 abstracts from papers in the Polymer Library are included with an index. Subjects covered include tyre wear and failure, seals, engine components, rubber bonding failure, rubber failure due to chloramine in water, tank treads, gloves and condoms, medical devices and EPDM roofing membranes.
This review discusses the different types of curing systems available today for different rubber types, including natural rubber, SBR, NBR, BR, IIR, CR, XIIR and EPDM. The uses of primary and secondary accelerators, prevulcanisation inhibitors (PVIs) and antireversion chemicals are outlined.Typical rubber formulations for applications in industrial rubber products and tyres are given. Cure systems are described and compared with extensive tables of data on formulae and compound properties. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database gives useful references for further reading.
