Polyvinyl chloride degradation

by Jerzy Wypych

Publisher: Elsevier in Amsterdam, Oxford

Written in English
Published: Pages: 264 Downloads: 610
Share This

Subjects:

  • Polyvinyl chloride -- Deterioration.

Edition Notes

Includes index.

StatementJerzy Wypych.
SeriesPolymer science library -- 3
Classifications
LC ClassificationsTP1180.V48
The Physical Object
Paginationix,264p. :
Number of Pages264
ID Numbers
Open LibraryOL21432352M
ISBN 100444425497, 0444418326

The acidic and alkaline degradation samples were incubated at 50°C in a hot water bath, and the oxidized sample was stored at 23°C. After 1, 5, 25, 73, 96, , and h, samples were collected from the degradation solutions, diluted with mobile phase, and analyzed chromatographically.   This study evaluated the physical and chemical stability of phenylephrine in extemporaneously prepared polyvinyl chloride (PVC) bags. Methods: Phenylephrine HCl 10 mg/mL solution was diluted with % sodium chloride for injection to final concentrations of µg/mL and µg/mL and stored at room temperature (23°C°C) exposed to Author: Josiah J. Jansen, Alan R. Oldland, Tyree H. Kiser. Polyvinyl Chloride (PVC, vinyl) is the world’s most versatile plastic. Its versatility is due to the many additives available for use in PVC. These additives allow PVC to be rigid or flexible, opaque or transparent, and it is easy to color. Unmodified PVC is very rigid and unusable in most applications, so plasticizers are used in order. Comparative scanning electron microscope study of the degradation of a plasticized polyvinyl chloride waterproofing membrane in different conditions This paper discusses the analysis of several samples of a plasticized polyvinyl chloride (PVC-P) waterproofing : A. Pedrosa, M. Del Río.

Exposure to Polyvinyl Chloride (PVC) has been strongly associated with the occurrence of angiosarcoma of the liver (Hepatic Angiosarcoma). As such PVC exposure is an example of chemical cell injury and primarily occurs in workers of the PVC industry. Poly(vinyl chloride) compositions degrade by discoloration on prolonged exposure to heat. The degree of discoloration is related to the condition of exposure, such as length of period and temperature. When the conditions of exposure are fixed and controlled, then the relative resistance to discoloration due to heat of two or more compositions is able to be determined.   Original language: English: Pages (from-to) Number of pages: 7: Journal: Journal of Macromolecular Science, Part A: Pure and Applied Chemistry: VolumeCited by: Keywords – Environmental education, Photosynthetic pigments, Polyvinyl chloride, UV-Vis spectrophotometry. To cite this article: Jenisová, Z., & Braniša, J. (). Scientific experiment focused at pigment degradation by polyvinyl chloride combustion in science education. Journal of Technology and Science Education, 9(3),

The degradation characters of polyvinyl chloride eroded in the natural environment Annual Congress on Environmental Pollution and Sustainable Energy July , Melbourne, Australia. Chih-Cheng Tang, Chon-Lin Lee, Huey-Ing Chen and Peter Brimblecombe. National Sun Yat-sen University, Taiwan National Cheng-Kung University, Taiwan. Thermal degradation of polyvinyl chloride (PVC) has been extensively studied by a host of eminent researchers, both in terms of its mechanism, and effects. Arrhenius-type relationships have been proposed to correlate the loss of hydrogen chloride (HCl) with temperature and duration of thermal degradation. However, the rate of dehydrochlorination, does not always . Comparative scanning electron microscope study of the degradation of a plasticized polyvinyl chloride waterproofing membrane in different conditions. A. Pedrosa *, M. Del Río. Escuela Técnica Superior de Edificación de Madrid, Universidad Politécnica de Madrid (Madrid, Spain) * [email protected]: A. Pedrosa, M. Del Río. Polyvinyl Chloride (PVC), a major plastics material which finds widespread use in building, transport, packaging, electrical/electronic and healthcare applications. PVC is a very durable and long last construction material, which can be used in a variety of applications, either rigid or flexible, white or black and a wide range of colours in between.

Polyvinyl chloride degradation by Jerzy Wypych Download PDF EPUB FB2

This timely book is the first authoritative reference on the subjects of degradation and stabilization of polyvinyl chloride (PVC).5/5(1). Polyvinyl chloride (PVC) is one of the most frequently used polymers and its low stability is the reason for many of the problems encountered in PVC processing and applications.

This book provides a survey of the thermal, photolytic and chemical degradation of PVC together with the analytical methods for studying these problems. PVC Degradation and Stabilization is must to have for chemists, engineers, scientists, university teachers and students, designers, material scientists, environmental chemists, and lawyers who work with polyvinyl chloride and its additives or have any interest in these products.

This book is the one authoritative source on the subject. Open Library is an open, editable library catalog, building towards a web page for every book ever published. Polyvinyl chloride degradation by George Wypych,Elsevier edition, in English Polyvinyl chloride degradation ( edition) | Open LibraryPages: Polyvinyl chloride has played a key role in the development of the plastics industry over the past 40 years and continues to be a polymer of major importance.

The reasons for its enormous versatility Totally adequate stabilisation requires a detailed understanding of the mechanisms by which degradation processes are initiated and propagated.

Extensively studied thermal degradation of polyvinyl chloride (PVC) occurs with formation of free hydrogen chloride and conjugated double bonds absorbing light in visible region. Thermogravimetric.

Kazuhiko Fukatsu, Study of Thermal Degradation of Poly(vinyl Alcohol)/Poly(vinyl Chloride) Blend with Flame Retardants, Journal of Fire Sciences, 4, 3, (), ().

Crossref by:   Thermal degradation of polyvinyl chloride; The configuration, conformation and degradation of polyvinyl chloride; Dilute solution properties and molecular characterization of polyvinyl chloride; Rheology and plasticization of polyvinyl chloride; Radioactive tracers in inorganic chemical analysis (a guide)Cited by: Many articles have been written attempting to explain the degradation processes which take place when polyvinyl chloride is aged.

Everyone agrees that hydrogen chloride is evolved, color develops, and the polymer eventually becomes stiff and insoluble as a result of crosslinking.

of the thermal degradation of polyvinyl chloride. The sites for initiation of the thermal degradation, the mechanism ofthe dehydrochlorination, the discoloura­ tion of PVC by heat and the influence of plasticizers on the rate of degradation are discussed.

INTRODUCTION For many years polyvinyl chloride (PVC) has been one of the most im­. Polymer Degradation and Stability61 (2), DOI: /S(97) Ahmady A. Yassin, Magdy W. Sabaa. DEGRADATION AND STABILIZATION OF POLY(VINYL CHLORIDE). Journal of Macromolecular Science, Part C30 (), DOI: / CHAPTER 1: INTRODUCTION TO POLYVINYL CHLORIDE Polyvinyl chloride (PVC) was first manufactured in Germany in as a robust and lightweight new plastic.

This breakthrough material was brought about to substitute for metals, glass, wood, natural fibers, papers and fabrics. Over 30 million tons of PVC is used around the globe today, both inFile Size: KB. viii Environmental Impacts of Polyvinyl Chloride Building Materialsviii In the last 40 years, polyvinyl chloride plastic (PVC) has become a major building material.

Global vinyl production now totals over 30 million tons per year, the majority of which is directed to building applications, furnishings, and electronics. Thermal Degradation of Polyvinyl Chloride.

THERMAL DEGRADATION OF POLYVINYL CHLORIDE D. BRAUN Deutsches Kunststoff-Institut, Darmstadt, Germany ABSTRACT A survey is given of the recent advances in the study of and the present knowledge of the thermal degradation of polyvinyl chloride.

The thermal degradation of a sort of polyvinyl chloride was investigated. Complex processes for polyvinyl chloride degradation were evidenced. The kinetic analysis of dehydrochlorination and of subsequent processes was carried out.

A change of mechanism was detected when dehydrochlorination goes to completion. The values of non-isothermal kinetic Cited by: Downloadable. Polyvinyl chloride (PVC) releases hydrochloric acid (HCl) during its thermal degradation, and hydrochloric acid can react with hydration products of alkali-activated binders.

According to this characteristic of PVC and the temperature change that occurs during the development of a geothermal well, the PVC was added into slag/fly ash binder to develop self. Polyvinyl chloride (PVC) has become a universal polymer with many applications (e.g., for pipes, floor coverings, cable insulation, roofing sheets, packaging foils, bottles, and medical products) because of its low cost and physical, chemical, and weathering properties.

PVC degrades at relatively low temperatures (∼°C) in the presence of light to release hydrogen chloride. Studies of Degradation of Plasticized Polyvinyl Chloride (PPVC). It is a toxic and carcinogenic gas that is handled under special protective procedures. PVC is made by subjecting vinyl chloride to highly reactive compounds known as free-radical initiators.

Under the action of the initiators, the double bond in the vinyl chloride monomers (single-unit molecules) is opened. Additional Physical Format: Online version: Wypych, George.

Polyvinyl chloride degradation. Amsterdam ; New York: Elsevier, (OCoLC)   Polyvinyl chloride (PVC) is a solid plastic material made from vinyl chloride. It is made softer and more flexible by the addition of phthalates, and can contain traces of chemicals like bisphenol A (BPA).

PVC is used to make pipes, polyvinyl flooring and siding, hoses, cable coatings, medical devices, and plumbing and automotive parts.

It is. The degradation of polyvinyl chloride with solvent has been widely studied [37,38]. Kamo and Sato were interested in the role of solvent in the PVC decomposition and removal of chlorine.

The reaction of polyvinyl chloride (PVC) with basic lead sulphates. Polymer Science U.S.S.R.11 (7), DOI: /(69) Mitsuo Onozuka, Mitsuo Asahina. On the Dehydrochlorination and the Stabilization of Polyvinyl by:   PVC Degradation and Stabilization is must have for chemists, engineers, scientists, university teachers and students, designers, material scientists, environmental chemists, and lawyers who work 5/5(1).

A major issue in the processing of PVC is its thermal and optical stability. Poly(vinyl chloride) is very sensitive to elevated temperatures and light, and undergoes significant deterioration when exposed to temperature and order to prevent thermal degradation during processing and light-induced deterioration of the finished product, chemical compounds with a stabilising.

About this Item: Betascript Publishers DezTaschenbuch. Condition: Neu. Neuware - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources nyl chloride, commonly abbreviated PVC, is the third most widely used thermoplastic polymer after polyethylene and polypropylene.

Abstract The thermal degradation behavior of suspension-polymerized poly(vinyl chloride) (PVC) and ethylene-vinyl chloride copolymer (E-VC) in the early stages was compared by continuous measurement of the extent of dehydrochlorination.

Practical Guide to Polyvinyl Chloride 1st Edition by Stuart Patrick (Author) ISBN ISBN Why is ISBN important. ISBN. This bar-code number lets you verify that you're getting exactly the right version or edition of a book. The digit and digit formats both work.

Cited by: POLYVINYL CHLORIDE Of all synthetic thermoplastics, polyvinyl chloride (PVC) is probably one of the polymers in modern use with the oldest pedigree. Regnault in France first produced vinyl chloride monomer in and Baumann first recorded its polymerisation in after exposing sealed tubes containing the monomer to Size: KB.

PVC Degradation and Stabilization is must have for chemists, engineers, scientists, university teachers and students, designers, material scientists, environmental chemists, and lawyers who work with polyvinyl chloride and its additives or have any interest in these products.

This book is the one authoritative source on the subject. Degradation. Degradation during service life, or after careless disposal, is a chemical change that drastically reduces the average molecular weight of the polyvinyl chloride polymer.

Since the mechanical integrity of a plastic depends on its high average molecular weight, wear and tear inevitably weakens the iations: PVC.PVC degradation & stabilization.

Previously published under titles: Polyvinyl chloride stabilization and Polyvinyl chloride degradation. Chemical Structure of PVC 2. PVC Manufacture Technology 3. PVC Morphology 4. Principles of Thermal Degradation 5. Principles of UV Degradation 6.CONFIGURATION, CONFORMATION AND DEGRADATION OF PVC Figure 4.

(a) MHz a-proton spectrum of polyvinyl chloride, observed in 5 per cent.