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 Rubber Modified Thermoplastics written by H. Keskkula and published by iSmithers Rapra Publishing. This book was released on 2000 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Glassy and ductile plastics require toughening to improve their range of usefulness, particularly for engineering applications. Rubber-modified, toughened thermoplastics are already in widespread use. This review sets out to introduce this field and describe the state-of-the-art. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database gives useful references for further reading.
Download or read book Polymer Toughening written by Charles Arends and published by CRC Press. This book was released on 2020-07-24 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work provides comprehensive coverage of the basic theories and hands-on techniques of polymer toughening, demonstrating the similarities in methods of measurement and toughness enhancement found in various classes of polymeric materials, including foams, films, adhesives and moulding grade polymers. It provides a detailed overview, from historical and current points of view, of polymer toughening as practiced in industry, and lays the theoretical groundwork for the analysis and prediction of different modes of toughening.
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 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 American Doctoral Dissertations written by and published by . This book was released on 2000 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2001 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Epoxy Blends written by Jyotishkumar Parameswaranpillai and published by Springer. This book was released on 2017-07-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference work compiles and summarizes the available information on epoxy blends. It covers all essential areas – the synthesis, processing, characterization and applications of epoxy blends – in a comprehensive manner. The handbook is highly application-oriented and thus serves as a valuable, authoritative reference guide for researchers, engineers, and technologists working on epoxy blends, but also for graduate and postgraduate students, polymer chemists, and faculties at universities and colleges.The handbook is divided into three parts and organized by the types of blends and components: Part I covers epoxy rubber blends, Part II focuses on epoxy thermoplastic blends, and Part III examines epoxy block-copolymer blends. Each part starts with an introduction, and the individual chapters provide readers with comprehensive information on the synthesis and processing, analysis and characterization, properties and applications of the different epoxy blends. All parts conclude with a critical evaluation of the applications, weighing their advantages and drawbacks. Leading international experts from corporate and academic research institutions and universities discuss the correlations of different epoxy blend properties with their macro-, micro- and nanostructures. This handbook thus offers a rich resource for newcomers to the field, and a major reference work for experienced researchers, the first of its kind available on the market. As epoxies find extremely broad applications, e.g. in oil & gas, in the chemical industry, building and construction industry, automotive, aviation and aerospace, boat building and marine applications, in adhesives and coatings, and many more, this handbook addresses researchers and practitioners from all these fields.
Download or read book Papers Presented at the Meeting written by American Chemical Society. Division of Polymer Chemistry and published by . This book was released on 1993 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Science and Engineering of Short Fibre Reinforced Polymer Composites written by Shao-yun Fu and published by Woodhead Publishing. This book was released on 2019-08-24 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Science and Engineering of Short Fibre Reinforced Polymer Composites, Second Edition, provides the latest information on the ‘short fiber reinforced composites' (SFRP) that have found extensive applications in automobiles, business machines, durable consumer items, sporting goods and electrical industries due to their low cost, easy processing and superior mechanical properties over parent polymers. This updated edition presents new developments in this field of research and includes new chapters on electrical conductivity, structural monitoring, functional properties, self-healing, finite element method techniques, multi-scale SFRCs, and both modern computational and process engineering methods. Reviews the mechanical properties and functions of short fiber reinforced polymer composites (SFRP) Examines recent developments in the fundamental mechanisms of SFRP's Assesses major factors affecting mechanical performance, such as stress transfer and strength Includes new chapters on electrical conductivity, structural monitoring, functional properties, self-healing, finite element method techniques, multi-scale SFRCs, modern computational methods, and process engineering methods
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 CRC Handbook of Solubility Parameters and Other Cohesion Parameters written by Allan F.M. Barton and published by Routledge. This book was released on 2017-10-19 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: The CRC Handbook of Solubility Parameters and Other Cohesion Parameters, Second Edition, which includes 17 new sections and 40 new data tables, incorporates information from a vast amount of material published over the last ten years. The volume is based on a bibliography of 2,900 reports, including 1,200 new citations. The detailed, careful construction of the handbook develops the concept of solubility parameters from empirical, thermodynamic, and molecular points of view and demonstrates their application to liquid, gas, solid, and polymer systems.
Download or read book Wood Polymer Composites written by K O Niska and published by Elsevier. This book was released on 2008-05-29 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood-polymer composites (WPC) are materials in which wood is impregnated with monomers that are then polymerised in the wood to tailor the material for special applications. The resulting properties of these materials, from lightness and enhanced mechanical properties to greater sustainability, has meant a growing number of applications in such areas as building, construction and automotive engineering. This important book reviews the manufacture of wood-polymer composites, how their properties can be assessed and improved and their range of uses.After an introductory chapter, the book reviews key aspects of manufacture, including raw materials, manufacturing technologies and interactions between wood and synthetic polymers. Building on this foundation, the following group of chapters discusses mechanical and other properties such as durability, creep behaviour and processing performance. The book concludes by looking at orientated wood-polymer composites, wood-polymer composite foams, at ways of assessing performance and at the range of current and future applications.With its distinguished editors and international team of contributors, Wood-polymer composites is a valuable reference for all those using and studying these important materials. Provides a comprehensive survey of major new developments in wood-polymer composites Reviews the key aspects of manufacture, including raw materials and manufacturing technologies Discusses properties such as durability, creep behaviour and processing performance
Download or read book Polypropylene Structure blends and Composites written by J. Karger-Kocsis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although polypropylene has been marketed since the 1950s, research and development in this area is still vigorous. The consumption of polypropylene over the years has been relatively high, mainly due to the steady improvement of its property profile. Polypropylene: Structures, Blends and Composites, in three separate volumes, reflects on the key factors which have contributed to the success of polypropylene, dealing with all aspects of structure-performance relationships relevant to thermoplastic polymers and related composites. Volume 1, Structure and Morphology, deals with polymorphism in polypropylene homo- and copolymers, where molecular and supermolecular structures are covered, and the processing-induced structure development of polypropylene, showing the interrelation between the processing-induced morphology and mechanical performance. Volume 2, Copolymers and Blends, contains comprehensive surveys of the nucleation and crystallisation behaviour of the related systems. It includes the development of morphology and its effects on rheological and mechanical properties of polypropylene-based alloys and blends and a review of polypropylene-based thermoplastic elastomers. Volume 3, Composites, gives a comprehensive overview of filled and reinforced systems with polypropylene as a matrix material, with the main emphasis on processing-structure-property-interrelationships. Chapters cover all aspects of particulate filled, chopped fibre-, fibre mat- and continuous fibre-reinforced composites. Interfacial phenomena, such as adhesion, wetting and interfacial crystallisation, are also included as important aspects of this subject.
Download or read book Plastics in the Environment written by Alessio Gomiero and published by BoD – Books on Demand. This book was released on 2019-05-15 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plastics in the Environment is a collection of reviewed and relevant research chapters, offering a comprehensive overview of recent developments in the field of plastic pollution and how it is affecting the environment. The book comprises single chapters authored by various researchers and edited by an expert active in the research area. All chapters are complete in themselves but united under a common research study topic. This publication aims at providing a thorough overview of the latest research efforts by international authors on the trending topic of plastics in the environment and opens new possible research paths for further novel developments.
Download or read book Impact and Dynamic Fracture of Polymers and Composites ESIS 19 written by J. G. Williams and published by Wiley-Blackwell. This book was released on 1995 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impact and Dynamic Fracture of Polymers an Composites consist of thirty-nine reviewed and revised papers presented at the European Symposium on Impact and Dynamic Fractures of Polymers and composites held in Sardinia. The volume is divided into four sections. The first section deals with experimental methods and concepts in high-speed loading. Dynamic crack propagation is described in section 2, and rate-dependence and impact fracture toughness of plastics is dealt with in section 3. the last section is concerned with the impact damage of composites. Finally an extensive index facilitates the location of specific information for readers. This volume is the nineteenth in a series of special technical publications produced by the European Structural Integrity Society. It is an informative and original piece of work and can be thoroughly recommended to engineering designers, manufacturing engineers, and material scientists. Indeed, Impact and Dynamic Fracture of Polymers and Composites makes a significant contribution to the literature on this important subject, and will make essential reading to all those involved in this field of mechanical engineering.
