Download or read book Toughening of Polypropylene with Recycled Tire rubber written by Sukunya Juikham and published by . This book was released on 2000 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The immiscible blends of recycled tire rubber, ither reclaimied tire-rubber or ground rubber tire and homolypropylene had been investigated. TGA demonstrated that reclaimed tire-rubber was the miscible mixture of devulcanized natural rubber, styrene-butadiene rubber and butadiene rubber, wheres ground rubber tire was the mixture of vulcanized natural rubber, styrene-butadiene rubber and butadiene robber. These blends were prepated by melt-mixing in two consecutive machines, firstly a two-roll mill and then a counter-rotating twin screw extruder. Two types of crosslinking agents, sulfur with other additives or maleic anhydride and dicumyl peroxide, were added into the blend during milling. After injection to the impact specimens, they were subjected to the measurement for their notch-lzod impact strength. In addition, the melt flow index, thermal properties and surface mprphology of these blends were also observed. It was found that homopolypropylene/ground rubber tire blends, with three different mesh sizes of ground rubber tire, at the ration of 70/30 had similar impact strength which were slightly higher than homopolypropylene. However, it was observed that homopolypropylene/ground rubber rubber tire blend, containing ground rubber tire with mwsh size of 40, exhibited the highest impact strength for both vulcanization using sulfur crosslinking agent and non-vulcanization. In case of homopolypropylene/reclaimed tire-rubber blends, various ratios, i.e., 80/20, 70/30, and 60/40 were attempted both with vulcanization using sulfur crosslinking agent and without vulcanization. The homopolypropylene/reclaimed tire-rubber blends at 70/30 had highest impact strength for both vulcanized and non-vulcanized blends. When maleic anhydride/dicumyl peroxide was used, it was found that higher impact strength of the hompolypropylene/reclaimed tire-rubber blend at 70/30 was obtained. This could be attributed to the cohesion the polymer chains in each phase, homopolypropylene phase and ruber phase, and the interfacial adhesion between homopolyropylene and reclaimed tire-rubber chains in these two phases. Such phenomena would lead to good dispersion and distribution of reclaimed tire-rubber in homopolypropylene matrix as clearly exhibited in their scanning electron micrograhs.
Download or read book A Study of the Effect of Compatibilisers on Toughening of Polypropylene scrap Rubber Dust Compounds written by Thawan Laosee and published by . This book was released on 1997 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Topics in Elastomers Research written by Anil K. Bhowmick and published by CRC Press. This book was released on 2008-05-07 with total page 1105 pages. Available in PDF, EPUB and Kindle. Book excerpt: From weather-proof tires and artificial hearts to the o-rings and valve seals that enable successful space exploration, rubber is an indispensable component of modern civilization. Stiff competition and stringent application requirements foster continuous challenges requiring manufacturers to fund ever-expanding research projects. However, this vas
Download or read book Impact Modification of Polypropylene as a Function of Rubber Toughening Parameters written by Jerry C. Lynch and published by . This book was released on 2000 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Thermoplastic Elastomers written by Nikhil K. Singha and published by Elsevier. This book was released on 2024-01-26 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Thermoplastic Elastomers: Challenges and Opportunities brings together the state-of-the-art in thermoplastic elastomers (TPEs), covering innovative materials, synthesis techniques, processing methods and sustainability. Sections outline thermoplastic elastomers, rubber elastic, and thermoplastic vulcanizates, and review the current landscape, from research and published literature, to commercialization and patents. Subsequent chapters offer methodical coverage of different categories of advanced thermoplastic elastomer materials, including areas such as polyolefin-based TPEs and high performance TPEs. The final chapters in the book examine options for sustainability, including bio-based, bio-resourced, and biodegradable TPEs, as well as circular economy and recycling of TPEs.Finally, outlook and future market and research trends are reviewed. This is a valuable book for researchers and advanced students working with elastomers, polymer science, materials chemistry, and materials engineering. In an industrial setting, this is an essential resource for R&D professionals, scientists, and engineers looking to utilize thermoplastic elastomers in a range of advanced applications. Focuses on novel materials, such as polyolefin-based TPEs, fluorinated TPEs, silicone-based TPEs, and ionic TPEs Discusses sustainability in terms of bio-based or biocompatible TPEs, recycling and the circular economy Helps bridge the gap between research and commercialization, reviewing patents, literature, trends, and market.
Download or read book The Mechanical Behavior of Rubber Toughened Polypropylene Reinforced with Continuous Glass Fibers written by Chih Wen Liu and published by . This book was released on 1988 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recycling and Reuse of Materials and Their Products written by Yves Grohens and published by CRC Press. This book was released on 2013-01-23 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important book is an overall analysis of different innovative methods and ways of recycling in connection with various types of materials. It aims to provide a basic understanding about polymer recycling and its reuse as well as presents an in-depth look at various recycling methods. It provides a thorough knowledge about the work being done in recycling in different parts of the world and throws light on areas that need to be further explored. Emphasizing eco-friendly methods and recovery of useful materials The book covers a wide variety of innovative recycling methods and research, including • Green methods of recycling • Effective conversion of biomass and municipal wastes to energy-generating systems • A catalyst for the reuse of glycerol byproduct • Methods of adsorption to treat wastewater and make it suitable for irrigation and other purposes • Disposal of sludge • The use of calcined clay to replace both fine and coarse aggregates • Recycling of rubbers • The production of a sorbent material for paper mill sludge • Replacing polypropylene absorbent in oil spill sanitations • The use of natural fibers for various industrial applications • Cashew nut shell liquid as a source of surface active reagents • Integrated power and cooling systems based on biomass • Recycling water from household laundering • much more
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rubber toughening of Crystalline Polymers written by Bor Zeng Bohr Jang and published by . This book was released on 1982 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Toughening Micro Mechanisms in Polypropylene Ethylene Propylene Diene Rubber Blends at Crack and Notch Tips written by L. Farhang and published by . This book was released on 2014 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polypropylene (PP) has the highest growth rate among commodity thermoplastics and is widely used in many applications including packaging, auto, and pipe industries. The relatively low impact strength of this polymer has led to the production of rubber-modified polypropylene with higher impact strength. To promote the applications of these blends, it is necessary to establish the relationship between the mechanical performance and fracture micro-mechanism(s). Fracture behavior is different depending on the application where either crack or notch might be present. In this study, a systematic approach is taken with the aim of understanding the toughening micro-mechanisms of polypropylene/ethylene-propylene-diene monomer (PP/EPDM) blends at both crack and notch tip using different microscopy techniques. Rubber-modified blends were prepared using a twin screw extruder. The samples were exposed to different mechanical, physical, and microscopic examinations. X-ray diffractometer (XRD) and differential scanning calorimetry (DSC) techniques were used to study the crystalline structure. Impact and fracture toughness (JIC) tests were conducted to evaluate toughness of blends. Morphology and fracture behavior of the blends were investigated via transmission optical microscopy (TOM) and scanning electron microscopy (SEM). Results indicate that both impact strength and fracture toughness (JIC) increase with increasing EPDM content. The two parameters, however, do not follow the same trend. The microscopic evaluations reveal that massive crazing coupled with particle cavitation is the dominant toughening mechanism in PP/EPDM blends under quasi-static and impact loading. Morphological features of the damage zone are different in these two loading conditions.
Download or read book Progress in Pacific Polymer Science 3 written by Ken P. Ghiggino and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in Pacific Polymer Science 3 continues the record of the current status of major topics in polymer science. The invited lecturers cover the following topics: - Adding Value to Natural Polymers - Polymers and the Environment - Polymers in Mining and Mineral Processing - Multicomponent Polymer Systems - Characterization, Properties and Processing - Functional Polymers - Polymers for Medical Applications - Polymer Recycling - Polymer Surfaces of Biological Significance - New and Advanced Polymer Materials
Download or read book The Mechanical Properties of Glass Fibre Reinforced and Rubber Toughened Polypropylene written by Alistair R. Hill and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tire Waste and Recycling written by Trevor Letcher and published by Academic Press. This book was released on 2021-03-25 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tire Waste and Recycling takes a methodical approach to the recycling of tires, providing a detailed understanding on how to manage, process, and turn waste tires into valuable materials and industrial applications. Sections cover fundamental aspects such as tire use, composition, trends, legislation, the current global situation, the possibilities for moving towards a circular economy, lifecycle options, treatment methods, and opportunities for re-use, recycling and recovery. Subsequent sections of the book focus on specific technologies that enable the utilization of waste tires in the development of high value materials and advanced applications. Finally, the future of tire recycling is considered. This is an essential resource for scientists, R&D professionals, engineers and manufacturers working in the tire, rubber, waste, recycling, automotive and aerospace industries. In academia, the book will be of interest to researchers and advanced scientists across rubber science, polymer science, materials engineering, environmental science, chemistry and chemical engineering. Offers systematic coverage of tire recycling, covering composition, lifecycle, processing options, material developments and latest technologies Explains end-of-life-options in detail, considering approaches and methods for reduction, re-use, recycling and recovery Explores key application and product areas for recycled tire materials, from civil engineering, sports and leisure, to roads and transport, construction, automotive, and many more
Download or read book Polymer Blends Handbook written by L. A. Utracki and published by . This book was released on 2014-01-31 with total page 1800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by an international group of highly respected contributors, this fundamental reference work covers all aspects of polymer blends: science, engineering, technology and applications.
Download or read book Science and Technology of Rubber written by James E. Mark and published by Elsevier. This book was released on 2011-07-28 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Science and Technology of Rubber, Third Edition provides a broad survey of elastomers with special emphasis on materials with a rubber-like elasticity. As in the 2nd edition, the emphasis remains on a unified treatment of the material; exploring topics from the chemical aspects such as elastomer synthesis and curing, through recent theoretical developments and characterization of equilibrium and dynamic properties, to the final applications of rubber, including tire engineering and manufacturing. Many advances have been made in polymer and elastomers research over the past ten years since the 2nd edition was published. Updated material stresses the continuous relationship between the ongoing research in synthesis, physics, structure and mechanics of rubber technology and industrial applications. Special attention is paid to recent advances in rubber-like elasticity theory and new processing techniques for elastomers. This new edition is comprised of 20% new material, including a new chapter on environmental issues and tire recycling.
Download or read book Polypropylene Handbook written by József Karger-Kocsis and published by Springer. This book was released on 2019-03-18 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book extensively reviews Polypropylene (PP), the second most widely produced thermoplastic material, having been produced for over 60 years. Its synthesis, processing and application are still accompanied by vigorous R&D developments because the properties of PP are at the borderline between those of commodity and engineering thermoplastics. Readers are introduced to various tacticities and polymorphs of PP, and their effects on structural properties. Further, the book addresses the control of optical properties using nucleants, provides strategies for overcoming the limited cold/impact resistance of PP, examines in detail the effects of recycling, and presents guidelines for the property modification of PPs through foaming, filling and reinforcing with respect to target applications. Special attention is paid to descriptions and models of properties as a function of morphological variables. Last but not least, the book suggests potential practical applications of PP-based systems, especially in the packaging, appliances, building/construction, textile and automotive sectors. Each chapter, written by internationally respected scientists, reflects the current state-of-art in the respective field and offers a vital source of information for students, researchers and engineers interested in the morphology, properties, testing and modeling of PP and PP-based systems. The content is indispensable to the appropriate application of PPs and related composites.
Download or read book Rubber Recycling written by Jin Kuk Kim and published by Royal Society of Chemistry. This book was released on 2018-10-03 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rubber is used in a vast number of products, from tyres on vehicles to disposable surgical gloves. Increasingly both manufacturers and legislators are realising that recycling is essential for environmental sustainability and can improve the cost of manufacture. The volume of rubber waste produced globally makes it difficult to manage as accumulated waste rubber, especially in the form of tyres, can pose a significant fire risk. Recycling rubber not only prevents this problem but can produce new materials with desirable properties that virgin rubbers lack. This book presents an up-to-date overview of the fundamental and applied aspects of renewability and recyclability of rubber materials, emphasising existing recycling technologies with significant potential for future applications along with a detailed outline of new technology based processing of rubber to reuse and recycle. This book will be of interest to researchers in both academia and industry as well as postgraduate students working in polymer chemistry, materials processing, materials science and engineering.
