Thermosoftening Plastics PDF Download
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Author: Gülşen Akın Evingür
Publisher: BoD – Books on Demand
ISBN: 1838806121
Category : Science
Languages : en
Pages : 126
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Book Description
Thermosoftening Plastics are polymers that can be manipulated into different shapes when they are hot, and the shape sets when it cools. If we were to reheat the polymer again, we could re-shape it once again. Modern thermosoftening plastics soften at temperatures anywhere between 65 oC and 200 oC. In this state, they can be moulded in a number of ways. They differ from thermoset plastics in that they can be returned to this plastic state by reheating. They are then fully recyclable because thermosoftening plastics do not have covalent bonds between neighbouring polymer molecules. Methods of shaping the softened plastic include: injection moulding, rotational moulding, extrusion, vacuum forming, and compression moulding. The scope of this book covers three areas of thermosoftening plastics, thermoplastic materials, and their characterization. The following tests are covered in the book: thermal analysis (differential scanning calorimetry, heat deflection temperature test), optical properties tests (fluorescence spectroscopy, UV spectroscopy), and mechanical properties tests (thermogravimetry, rheometry, short term tensile test).
Author: Gülşen Akın Evingür
Publisher: BoD – Books on Demand
ISBN: 1838806121
Category : Science
Languages : en
Pages : 126
Get Book Here
Book Description
Thermosoftening Plastics are polymers that can be manipulated into different shapes when they are hot, and the shape sets when it cools. If we were to reheat the polymer again, we could re-shape it once again. Modern thermosoftening plastics soften at temperatures anywhere between 65 oC and 200 oC. In this state, they can be moulded in a number of ways. They differ from thermoset plastics in that they can be returned to this plastic state by reheating. They are then fully recyclable because thermosoftening plastics do not have covalent bonds between neighbouring polymer molecules. Methods of shaping the softened plastic include: injection moulding, rotational moulding, extrusion, vacuum forming, and compression moulding. The scope of this book covers three areas of thermosoftening plastics, thermoplastic materials, and their characterization. The following tests are covered in the book: thermal analysis (differential scanning calorimetry, heat deflection temperature test), optical properties tests (fluorescence spectroscopy, UV spectroscopy), and mechanical properties tests (thermogravimetry, rheometry, short term tensile test).
Author: G. I. Roytberg
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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Book Description
The creep of polymer materials is studied predominantly under conditions of static uniaxial tension. Established at present is the existence of elastic, elasto-elastic (nonstationary) and viscous (stationary) components of total creep strain. The total strain at a constant tensile load and temperature and also the duration of the loading are connected with each other. Liquid media under these conditions do not change the shape of the creep curves. It was of interest to clarify the possibility of using a equation for describing the creep of structural thermosoftening plastics with other forms of the stressed state in air and in liquid media. We studied the creep of polymers under normal conditions in air and in the model medium - the physiological solution (0.9% solution of nacl in distilled water) under static bending and compression. Keywords: Foreign technology; Translations; USSR; Russian language.
Author: Filippo Giustozzi
Publisher: Woodhead Publishing
ISBN: 0323909302
Category : Technology & Engineering
Languages : en
Pages : 406
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Book Description
Waste polymers have been studied for various applications such as energy generation and biochemical production; however, their application in asphalt roads still poses some questions. Over the last decade, several studies have reported the utilization of waste plastics in roads using different methodologies and raw materials, but there is still significant inconsistency around this topic. What is the right methodology to recycle waste plastics for road applications? What is the correct type of waste plastics to be used in road applications? What environmental concerns could arise from the use of waste plastics in road applications? Plastic Waste for Sustainable Asphalt Roads covers the various processes and techniques for the utilization of waste plastics in asphalt mixes. The book discusses the various material properties and methodologies, effects of various methodologies, and combination of various polymers. It also provides information on the compatibility between bitumen and plastics, final asphalt performance, and environmental challenges. - Discusses the processes and techniques for utilization of waste plastics in asphalt mixes. - Features a life-cycle assessment of waste plastics in road surfaces and possible Environmental Product Declarations (EPD). - Includes examples of on-field usage through various case studies.
Author: Ted Lister
Publisher: Royal Society of Chemistry
ISBN: 9780854049202
Category : Education
Languages : en
Pages : 104
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Book Description
This book presents useful material in the form of teacher's notes and photocopiable worksheets. It will be useful at pre- and post-16 level.
Author: Eileen Ramsden
Publisher: Nelson Thornes
ISBN: 074876254X
Category : Chemistry
Languages : en
Pages : 344
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Book Description
This chemistry extension file includes teaching notes, guidance on coursework activities and equipment. It has at least one assignment for each topic in the textbooks - suitable for classwork and homework. A comprehensive range of practical activities are included. It contains extensive Key Skills and ICT materials. An exam file resource containing a complete set of exam style questions, in a format that can be used throughout Years 10 and 11, or as a resource for a revision programme is included.
Author: Lakhmir Singh & Manjit Kaur
Publisher: S. Chand Publishing
ISBN: 9352530241
Category : Science
Languages : en
Pages : 361
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Book Description
Lakhmir Singhs Science is a series of books which conforms to the NCERT syllabus. The main aim of writing this series is to help students understand difficult scientific concepts in a simple manner in easy language. The ebook version does not contain CD.
Author: LAKHMIR SINGH
Publisher: S. Chand Publishing
ISBN: 9352831764
Category : Science
Languages : en
Pages : 360
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Book Description
Awareness Science is a series of science books for classes 1-8 for the schools following CBSE Syllabus.
Author: Jan Knippers
Publisher: Walter de Gruyter
ISBN: 3034614705
Category : Architecture
Languages : en
Pages : 298
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Book Description
Whether it be as translucent sheets, broadly stretched membranes, and inflated foil cushions or in graceful, organic curves, architecture today is utilizing plastics in the most disparate forms and for a wide variety of purposes. Innovative technical developments are constantly improving its material properties; at the same time, there is a growing new awareness of its potential as a construction material. While plastics used to be employed primarily as an inexpensive variant on traditional building materials, they are increasingly regarded in the construction world today as a serious and viable alternative, be it as supporting structures, roofs, facades, or elements of interior design and decoration. Thanks in large part to this inherent self-sufficiency, plastics are currently enjoying an unprecedented surge in popularity, even among the international architectural avant-garde – as multiwall sheets or corrugated, fiber-reinforced panels, or as filling between glass panes. And the new generation of ecological bioplastics also pays tribute to the debate on sustainability, ridding plastics of their lingering reputation as environmental offenders. From the history of plastics and membranes in architecture to their material properties and requirements in construction and design, the Plastics and Membranes Construction Manual cuts to the chase, providing the kind of solid and comprehensive overview of the subject that readers have come to expect from the Im DETAIL series. Selected project examples round off the reference work and make it indispensable for the day-to-day life of the professional planner and for every architecture library.
Author: Majeti Narasimha Vara Prasad
Publisher: Elsevier
ISBN: 0443220700
Category : Science
Languages : en
Pages : 882
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Book Description
Environmental Materials and Waste: Circular Economy and Pollution Abatement, Second Edition, contains the latest information on environmental sustainability as a wide variety of natural resources are increasingly being exploited to meet the demands of a worldwide growing population and economy. The book takes a multidisciplinary approach to fully realize the number of by-products which can be remanufactured, providing the foundation needed across disciplines to tackle this issue. As awareness and opportunities to recover valuable resources from process and bleed streams is gaining interest, sustainable recovery of environmental materials, including wastewater, offers tremendous opportunity to combine profitable and sustainable production. In this 2nd edition, operational principles of circular economy for sustainable development with reference to environmental waste shall be covered. Circular economy research is discussed in depth as it has gained considerable momentum in the scientific literature thus far, and both conceptual debates and the creation of useful implementation strategies are still in their infancy. Although circular systems are now being implemented, this book will emphasize the importance to properly consider and convert circular economy goals and principles into actions. As a whole, this 2nd edition of Environmental Materials and Waste covers a wide range of issues that must be covered in order to improve environmental sustainability. - Presents a state-of-the-art guide to environmental sustainability - Provides an overview of the field, highlighting recent and emerging issues in environmental resource recovery that cover a wide array of by-products for remanufacture potential - Details a multidisciplinary approach to fully realize the number of by-products which can be remanufactured, providing the foundation needed across disciplines to tackle these global issues
Author: Manuel Palencia
Publisher: Elsevier
ISBN: 0128218541
Category : Science
Languages : en
Pages : 468
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Book Description
There is a growing demand for strategies to address the impact of polymers and plastics in ecosystems. The principles of green chemistry offer a good source of such strategies. Ecofriendly Functional Polymers: An Approach from Application-Targeted Green Chemistry provides a holistic overview of polymer chemistry, development, and applications in the context of these sustainability-driven principles. It encourages researchers to consider the principles of green chemistry, environmental impacts, and end-user needs as integral aspects for consideration at the earliest stages of any design process, and draws together key aspects of polymer chemistry, organic synthesis, experimental design, and applications in a single volume. Beginning with an authoritative guide to fundamental polymer chemistry and its impact in the current environmental context, the book then discusses a range of key theoretical and experimental aspects of designing eco-friendly functional polymers. Applications of ecofriendly functional polymers across an entire range of fields are discussed, and a selection of case studies highlights the implementation of theoretical and experimental information to address a broad selection of issues. Highlights the physicochemical principles of green chemistry and the development of biodegradable and recyclable polymers in this context Compiles key information connecting structural features with properties, experimental strategies, and appropriate applications into a single volume Discusses requirements and applications across a broad range of fields, supported by practical examples
