Download or read book Siloxanes in the Nordic Environment written by and published by Nordic Council of Ministers. This book was released on 2005 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: Siloxanes belong to a group of substances used in a number of industrial applications and in consumer products such as additives in fuel, car polish, cleaners, anti foamiers and car waxes. Besides this, they are widely used in e.g. personal care and biomedical products. As a result of their wide use, siloxanes are presumably spread into the environment both via point sources and via diffuse sources and may be found in the environment. Recent studies have suggested that siloxanes may have direct or indirect toxic effects on various biological processes. The aim of this screening study was to obtain a snapshot of the occurrence of siloxanes in the Nordic environment. The here presented screening study involved six countries: Denmark, Faroe Islands, Finland, Iceland, Norway and Sweden. Sampled media types were air, biota, sediment, sludge, soil and water. Siloxanes were found in all the analysed samples types except soils. The results indicate that there is a general pollution of siloxanes in the Nordic environment, close to dense population and major sources. There was, however, a great variation in concentrations. The cyclic siloxanes occurred in all media in significantly higher concentrations than the linear siloxanes. At present, the observed concentrations are not alarmingly high, and many background sites seem to be non-contaminated. However, the use of siloxanes is extensive and it is possible that continued use will lead to increased environmental levels, eventually reaching effect concentrations.
Download or read book Treatment of wood with siloxanes and metal micro particle deposition using plasma technology written by Patricia Gascón-Garrido and published by Cuvillier Verlag. This book was released on 2017-10-06 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasma treatment is a novel and promising technolgy in the field of wood surface modification. Deposition of micro-particles on wood surfaces by means of plasma is an interesting approach to enhance wood properties and thus, to extend the service life of wood products. On the other hand, several silicone fomulations have been already shown to cause excellent water repellence and interaction with cell wall components, beside to impart high chenical and weathering stability as well as biological resistance in treated wood. Based on that, this study focussed on both treatments seperately in an initial stage of the research; followed by the combination, in a two-step treatment, of vacuum-pressure impregnation of solid wook with siloxanes and additional copper deposition on wood surface using atmostpheric pressure plasma.
Download or read book Siloxanes Advances in Research and Application 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-06-21 with total page 843 pages. Available in PDF, EPUB and Kindle. Book excerpt: Siloxanes—Advances in Research and Application: 2013 Edition is a ScholarlyBrief™ that delivers timely, authoritative, comprehensive, and specialized information about ZZZAdditional Research in a concise format. The editors have built Siloxanes—Advances in Research and Application: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about ZZZAdditional Research in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Siloxanes—Advances in Research and Application: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book Siloxane Based Polymers written by Ignazio Blanco and published by MDPI. This book was released on 2019-07-11 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, a collection of 12 original contributions and 4 reviews, provides a selection of the most recent advances in the preparation, characterization, and applications of polymeric nanocomposites comprising nanoparticles. The concept of nanoparticle-reinforced polymers came about three decades ago, following the outstanding discovery of fullerenes and carbon nanotubes. One of the main ideas behind this approach is to improve the matrix mechanical performance. The nanoparticles exhibit higher specific surface area, surface energy, and density compared to microparticles and, hence, lower nanofiller concentrations are needed to attain properties comparable to, or even better than, those obtained by conventional microfiller loadings, which facilitates processing and minimizes the increase in composite weight. The addition of nanoparticles into different polymer matrices opens up an important research area in the field of composite materials. Moreover, many different types of inorganic nanoparticles, such as quantum dots, metal oxides, and ceramic and metallic nanoparticles, have been incorporated into polymers for their application in a wide range of fields, ranging from medicine to photovoltaics, packaging, and structural applications.
Download or read book Toxic Substances Control Act TSCA Chemical Substance Inventory User guide and indices to the initial inventory Substance name index written by United States. Environmental Protection Agency. Office of Toxic Substances and published by . This book was released on 1979 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxic Substances Control Act TSCA Chemical Substance Inventory written by and published by . This book was released on 1986 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Chemical Processing and Design written by John J. McKetta Jr and published by CRC Press. This book was released on 1994-11-21 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Written by engineers for engineers (with over 150 International Editorial Advisory Board members),this highly lauded resource provides up-to-the-minute information on the chemical processes, methods, practices, products, and standards in the chemical, and related, industries. "
Download or read book Conditioning Agents for Hair and Skin written by Randy Schueller and published by CRC Press. This book was released on 1999-02-02 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discussing the history, benefits, formulations and future developments of hair and skin conditioning products, this work offers an overview of the subject and unique analysis of the elements of conditioning. It offers the novice chemist a solid foundation of technical knowledge and the seasoned scientist the latest state-of-the-art ingredients and testing procedures used in evaluation.
Download or read book Chemistry And Technology Of Alternate Fuels written by James G Speight and published by World Scientific. This book was released on 2020-10-14 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: This compendium covers unconventional fuel sources, i.e., sources other than crude oil and natural gas with the aim of presenting these sources as future alternates to fossil fuels. The contents of this must-have volume are important aspects of the non-fossil fuel sources of availability of alternate sources of fuels. The properties of these fuels are well documented and compared to other fuels from non-petroleum sources (such as tar sand, coal, and oil shale). The environmental effects of non-petroleum fuels will also be compared to other fuels in terms of current environmental regulations.
Download or read book Molecular Technology Volume 4 written by Hisashi Yamamoto and published by John Wiley & Sons. This book was released on 2019-08-05 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by foremost leaders in chemical research together with a number of distinguished international authors, this fourth volume summarizes the most important and promising recent developments in synthesis, polymer chemistry and supramolecular chemistry. Interdisciplinary and application-oriented, this ready reference focuses on innovative methods, covering new developments in catalysis, synthesis, polymers and more.
Download or read book GC LC Instruments Derivatives in Identifying Pollutants and Unknowns written by Raymond C. Crippen and published by Elsevier. This book was released on 2013-10-22 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: GC/LC Instruments, Derivatives in Identifying Pollutants and Unknowns outlines the methods of identifying various components in products, processes, or discharges to the environment. This book is composed of 14 chapters that demonstrate the utility of gas and liquid chromatographs in the analysis of unknown organic compounds. The opening chapters deal with the isolation and the preparation of derivatives of various pollutants. Considerable chapters are devoted to the analysis and detection of various organic group compounds, including derivatives of acetals, acetates, acids, acid halides, ethers, amines, amino acids, anilides, barbiturates, benzamides, esters, and hydrocarbons. Other chapters cover other group compounds, such as derivatives of oxalates, oximes, peroxides, phenyl, semicarbazones, silicones, sulfur, toluidides, tri-halo acids, and alcohols. The closing chapters describe the identification techniques and instrumentation of pollutant detection. These chapters highlight the utilization of GC/LC data in physic-chemical measurements of various organic pollutants. This book will prove useful to analytical and organic chemists, environmental scientists, and researchers.
Download or read book Toxic Substances Control Act TSCA Chemical Substance Inventory Initial inventory written by United States. Environmental Protection Agency. Office of Toxic Substances and published by . This book was released on 1979 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systems Biology in Toxicology and Environmental Health written by Rebecca Fry and published by Academic Press. This book was released on 2015-06-11 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systems Biology in Toxicology and Environmental Health uses a systems biological perspective to detail the most recent findings that link environmental exposures to human disease, providing an overview of molecular pathways that are essential for cellular survival after exposure to environmental toxicants, recent findings on gene-environment interactions influencing environmental agent-induced diseases, and the development of computational methods to predict susceptibility to environmental agents. Introductory chapters on molecular and cellular biology, toxicology and computational biology are included as well as an assessment of systems-based tools used to evaluate environmental health risks. Further topics include research on environmental toxicants relevant to human health and disease, various high-throughput technologies and computational methods, along with descriptions of the biological pathways associated with disease and the developmental origins of disease as they relate to environmental contaminants. Systems Biology in Toxicology and Environmental Health is an essential reference for undergraduate students, graduate students, and researchers looking for an introduction in the use of systems biology approaches to assess environmental exposures and their impacts on human health. Provides the first reference of its kind, demonstrating the application of systems biology in environmental health and toxicology Includes introductions to the diverse fields of molecular and cellular biology, toxicology, and computational biology Presents a foundation that helps users understand the connections between the environment and health effects, and the biological mechanisms that link them
Download or read book Integral Waterproofing of Concrete Structures written by Maher Al-Jabari and published by Woodhead Publishing. This book was released on 2022-06-17 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integral Waterproofing of Concrete Structures demonstrates how integral waterproofing technologies can solve concrete durability problems based on performance and characterization experimental results. This book first establishes a background about concrete structures and porosity linked with concrete hydration, then goes on to consider concrete durability problems from the perspective of water penetration including damages from freeze-thaw cycles, alkali silica reactions, and chloride ion penetration. The mechanisms, applications, performances, and limitations of waterproofing technologies including coatings and integral systems are compared. The book also showcases all application methods of crystallization waterproofing materials, including material spray on cured concrete and on fresh concrete, and their addition to concrete mix designs as enhancers or admixtures. Pore-blocking and lining waterproofing systems including silicate-based and hygroscopic kinds, and other waterproofing materials are also discussed. Includes various, advanced, recent technologies in the field of waterproofing Presents and describes enhanced concrete characteristics and modified structures within the context of material engineering Summarizes the characteristics of waterproofing systems obtained from experimental results
Download or read book Immunology of Silicones written by Michael Potter and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This issue of Current Topics in Microbiology and Immunology records the proceedings of a Workshop on the Immunology of Sili cones held at the Natcher Conference Center, National Institutes of Health, Bethesda, Maryland, March 13 and 14, 1995. A large num ber of investigators from North America and Europe met to discuss available data on how the immune system responds to silicones and related materials. Some aspects of this field are controversial. Nonetheless, the meeting was marked by a civil and open ex change of scientific information and divergent interpretations, re flecting the traditions of scientific communication. Each invited participant was asked to submit an article sum marizing his/her presentation. Most of the papers are published as submitted, with only editorial changes to conform with the guide lines given to each contributor or revisions to clarify aspects of the paper. The papers should not be regarded as peer-reviewed publi cations. This preface will attempt to outline some of the immu nological areas of investigation relating to silicones.
Download or read book High Temperature Siloxane Elastomers written by Petar R. Dvornic and published by Wepf. This book was released on 1990 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Essence of Chromatography written by C. F. Poole and published by Elsevier. This book was released on 2003 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Essence of Chromatography presents a comprehensive survey of modern chromatography and is intended as a suitable text for graduate level courses in the separation sciences and as a self-study guide for professional chromatographers wishing to refresh their background in this rapidly expanding field.This title is an effective replacement for Chromatography Today, written by the same author with Salwa K. Poole, which is considered to be one of the definitive chromatographic texts of the last decade. Its format is modular, with extensive cross-references to permit rapid location of re.
