Download or read book A Study of Crystallization and Morphology in Oriented Poly ethylene Terephthalate and Related Coploymer Films written by Ellen Louise Heeley and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Morphology and Mechanical Properties of Biaxially Oriented Films of Recycled Polyethylene written by Roongroj Phoogpan and published by . This book was released on 1999 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1980 with total page 1280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Orientation and Mechanical Anisotropy in Polyethylene Polypropylene and Poly ethylene Terephthalate Films written by Howard L. Price and published by . This book was released on 1969 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular orientation and mechanical isotropy in polyethylene, polypropylene, and polyethylene terephthalate films.
Download or read book Handbook of Polymer Crystallization written by Ewa Piorkowska and published by John Wiley & Sons. This book was released on 2013-05-30 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymeric crystals are more complex in nature than other materials' crystal structures due to significant structural disorder present. The only comprehensive reference on polymer crystallization, Handbook of Polymer Crystallization provides readers with a broad, in-depth guide on the subject, covering the numerous problems encountered during crystallization as well as solutions to resolve those problems to achieve the desired result. Edited by leading authorities in the field, topics explored include neat polymers, heterogeneous systems, polymer blends, polymer composites orientation induced crystallization, crystallization in nanocomposites, and crystallization in complex thermal processing conditions.
Download or read book Structure and Properties of Polymer Films written by R. Lenz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of the relationship between the structure, morphology and properties of polymer films has significantly progressed in recent years through the use of a number of phyiscal techniques - some new and some old. These methods include small and large angle x-ray diffraction, bire fringence, light scattering, infrared dichroism, fluorescence polarization, light and electron microscopy and interferrometry. This collection of papers, most of which were presented at a symposium at the Boston American Chemical Society Meeting in April, 1972, represent a collection of recent studies using many of these methods by some of the leading scientists in their fields. It is evident that these various techniques permit the study of various aspects of film structure such as crystal structure and orientation, amorphous orientation, the interrelation of crystalline and amorphous regions in lamellar, fibrillar, and spherulitic superstructure and the relationshi. p of these structural variables to the mechanical and optical properties of the films. Film structure is sufficiently complex that a complete understanding of the relationship between structure and properties will come from the employment of a combination of several of these methods. vii CONTENTS Optical Studies of the Morphology of Polymer Films ••• • • 1 Richard S. Stein Light Scattering by Oriented Native Cellulose Systems 25 R. H. Marchessault Superstructure in Films of Bio and Biorelated Small Angle Polymers as Noted by 39 Light Scattering • • Garth L.
Download or read book Study on the Morphology of Highly Oriented Films of Polypropylene polyethylene Blends written by X. Liu and published by . This book was released on 1990 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crystallization Kinetics and Crystal Morphology in Thin Poly ethylene Oxide Films written by Michael V. Massa and published by . This book was released on 2002 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Maro Polymer Notes written by and published by . This book was released on 2000 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biaxial Stretching of Film written by Mark T. DeMeuse and published by Elsevier. This book was released on 2011-07-18 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biaxial (having two axes) stretching of film is used for a range of applications and is the primary manufacturing process by which products are produced for the food packaging industry. Biaxial stretching of film: principles and applications provides an overview of the manufacturing processes and range of applications for biaxially stretched films.Part one reviews the fundamental principles of biaxial stretching. After an introductory chapter which defines terms, chapters discuss equipment design and requirements, laboratory evaluations, biaxial film structures and typical industrial processes for the biaxial orientation of films. Additional topics include post production processing of biaxially stretched films, the stress-strain behaviour of poly(ethylene terephthalate) and academic investigations of biaxially stretched films. Part two investigates the applications of biaxial films including fresh cut produce, snack packaging and product labelling. A final chapter investigates potential future trends for biaxially oriented films and orienting lines.Biaxial stretching of film: principles and applications is a valuable reference tool for a broad spectrum of readers, ranging from polymer and fibre engineers to electrical engineers. It will also be suitable for professionals in the food packaging and paper industries. A valuable reference tool for polymer and fibre engineers, electrical engineers and professionals in the food packaging and paper industries Provides a comprehensive overview of the manufacturing processes of biaxially stretched films and includes a discussion of their future applications Places emphasis on the technology as well as the different types of polymers used
Download or read book An Investigation of Structure Property Correlations in Polyethylene Terephthalate Films written by A. Viswanathan and published by . This book was released on 1975 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Six characteristic types of polyethylene terephthalate (Mylar) films were studied by x-ray diffraction techniques. The degree of crystallinity, extent of preferred orientation, crystallite sizes, and paracrystalline disorder were evaluated. The tensile properties were measured in directions parallel and normal to the trace of the optic axial plane as well as in the machine and transverse directions of stretch. The influence of crystallite orientation on the mechanical properties is discussed. The exceptionally high strength in the machine direction of type 142T film may be associated with the high degree of orientation achieved by a two-way stretch followed by a post-stretch in the machine direction. The balanced, physical properties in type 1000S film are likewise attributable to the presence of two-way stretches in mutually perpendicular directions. The influence of crystallinity was masked by the anisotropic disorder arising from varying degrees of preferred orientation. The techniques employed are indicated to be applicable to other polymeric materials.
Download or read book Physics Briefs written by and published by . This book was released on 1990 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymer Morphology written by Qipeng Guo and published by John Wiley & Sons. This book was released on 2016-03-21 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: With a focus on structure-property relationships, this book describes how polymer morphology affects properties and how scientists can modify them. The book covers structure development, theory, simulation, and processing; and discusses a broad range of techniques and methods. • Provides an up-to-date, comprehensive introduction to the principles and practices of polymer morphology • Illustrates major structure types, such as semicrystalline morphology, surface-induced polymer crystallization, phase separation, self-assembly, deformation, and surface topography • Covers a variety of polymers, such as homopolymers, block copolymers, polymer thin films, polymer blends, and polymer nanocomposites • Discusses a broad range of advanced and novel techniques and methods, like x-ray diffraction, thermal analysis, and electron microscopy and their applications in the morphology of polymer materials
Download or read book Structure and Morphology of Poly ethylene Terephthalate Film Treated with Amine written by J. W. Kim and published by . This book was released on 1988 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Structure of Oriented Poly ethylene Terephthalate Films written by K. R. Kirov and published by . This book was released on 2001 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conference Proceedings written by Society of Plastics Engineers. Technical Conference and published by . This book was released on 1993 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transient Crystallization of Poly ethylene Terephthalate Bottles written by Timothy Joseph Boyd and published by . This book was released on 2004 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poly(Ethylene Terephthalate), PET, has become the packaging material of choice for many packaging applications. PET containers have virtually replaced glass bottles in many market segments. PET markets that require cold or hot products (up to 85°C) to be filled within have essentially reached commodity status. There are many applications that could be served by PET, if PET bottles with a higher degree of thermal stability could be commercially produced. Such non-commodity applications would provide added value to the marketplace, and enable more favorable economic return. Much work has been published regarding the kinetics of crystallization of PET, in both its oriented and unoriented states. Within the published volume of literature, there are key elements to the methods of processing PET that are disclosed and can be used to construct a new crystallization (heat set) process for the blow molding of PET bottles. For this work commercial stretch blow molding machines were adapted to accept a circulation of hot air on the interior of the bottle during the blow molding cycle. A combination of hot molds at the bottle exterior and heated compressed air at the interior bottle surface provide energy to the oriented bottle sidewall, with the energy sufficient to induce an increase in the crystalline structure of the PET. Additionally, the energy allows rearrangements of the morphology of the non-crystalline region from a stressed to a more relaxed structure, resulting in an improvement of bottle thermal stability up to 121°C. Once a process was established and performance of the bottles from the process was validated, the differential equation describing the energy transfer was written. Through numerical methods, this equation was solved for the temperature gradient, and PET kinetics were added to provide a final model that predicts both temperature and crystallinity gradients through the bottle sidewall as a function of the process parameters. The model predictions were tested against measured values, and reasonable agreement was found. The final model provides a means of describing the crystallization of PET that occurs immediately after formation of the bottle (i.e. as the bottle reaches the blow mold). Due to assumptions made during the modeling of the physical characteristics of PET (e.g. thermal conductivity, heat capacity), the model would only be valid for 100°C
