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Books > Professional & Technical > Industrial chemistry & manufacturing technologies > Timber & wood processing
The new edition of this comprehensive study of national and international research and application into wood preservation is both well detailed and broad in coverage. The text covers the history of preservation: the anatomy of timbers and their breakdown, preservation principles, materials and methods.
The book is a fundamental reference source on reaction wood for wood scientists and technologists, plant biologists, silviculturists, forest ecologists, and anyone involved in the growing of trees and the processing of wood. It brings together our current understanding of all aspects of reaction wood, and is the first book to discuss both compression wood and tension wood. Trees produce reaction wood to maintain the vertical orientation of their stems and the optimum angle of each branch. They achieve this by laying down fibre cell walls in which differences in physical and chemical structure from those of normal fibres are expressed as differential stresses across the stem or branch. This process, while of obvious value for the survival of the tree, causes serious problems for the utilisation of timber. Timber derived from trees containing significant amounts of reaction wood is subject to dimensional instability on drying, causing twisting, bending and splitting. It is also difficult to work as timber, and for the pulp and paper industry the cost of removing the increased amount of lignin in compression wood is substantial. This has both practical and economic consequences for industry. Understanding the factors controlling reaction wood formation and its effect on wood structure is therefore fundamental to our understanding of the adaptation of trees to their environment and to the sustainable use of wood. The topics covered include: -Morphology, anatomy and ultrastructure of reaction wood -Cell-wall polymers in reaction wood and their biosynthesis -Changes in tree proteomes during reaction wood formation -The biomechanical action and biological functions of reaction wood -Physical and mechanical properties of reaction wood from the scale of cell walls to planks -The detection and characterisation of compression wood -Effects of reaction wood on the performance of wood and wood-based products -Commercial implications of reaction wood and the influence of forest management on its formation "
This volume describes how conflicting managerial factors become mobilized to co-operate in situations of discontinuous technological change. The author develops a conceptual framework to analyze how technological discontinuities are managed within firms. The mobilization of management is shown to emerge, in part, from the resources in the sectoral and national context. These ideas are explored through an in-depth case study of the Finnish paper industry, in which the Finnish firms are major players at the cutting edge of technological innovation. The national perspective is particularly productive here, because it reveals the processes through which even limited resources can lead to industrial prosperity and success.
For what is thought of as an essentially mechanical process, paper manufacture involves a large amount of chemistry. The Chemistry of Paper provides an overview of the process of making paper from a chemical perspective. It deals with both the chemistry of paper as a material and the chemistry of its production, setting out the main principles involved at every stage of the process. Early chapters provide a chemical definition of paper in the light of the many uses to which it is put. Subsequent chapters deal with the chemical processes involved in the production of paper: the delignification of the wood fibres performed at elevated temperature and pressure, the bleaching of the cellulose-rich pulp using environmentally-friendly systems, the formation of the pulp into sheets of fibres strengthened by extensive inter-fibre hydrogen bonding, and finally the coating of the sheets in a manner appropriate to their end use. Chemistry is involved at every stage of the process, including carbohydrate chemistry, the chemistry of inorganic pigments and organic resins, colloid and surface chemistry, as well as elements of environmental and analytical chemistry. The Chemistry of Paper provides an informative and entertaining overview of the chemical principles involved. It will be especially suitable for students and others who require an introduction to the chemistry of paper manufacture.
This volume emphasizes the growing need for wood products with advanced engineering properties. It details the fundamental principles of cellulose technology and presents current techniques to modifying the basic chemistry of lignocellulosic materials. The work: discusses the cost-efficient use of cellulose derivatives in a variety of commodities; highlights the chemical modification of wood by methods such as etherification, esterification and thermoplasticization; considers recent progress in the lignocellulosic liquefaction of wood; and more.
Since prehistoric times and throughout the course of human evolution, wood has been an integral part of all civilizations. Wooden Cultural Heritage can be found worldwide, providing valuable information on the social and economic context of human history. Nonetheless, as a natural cellulosic material, wood shows low resistance to biodeterioration and thus wooden Cultural Heritage often fails to escape decomposition in both aquatic and terrestrial ecosystems. This book provides a comprehensive overview on the biodeterioration of wooden Cultural Heritage and describes the decay mechanisms of key organisms and microorganisms encountered in aquatic and terrestrial ecosystems. Cultural Heritage professionals, researchers and academics may explore within this book the associations between deteriogens, habitats and decay, which will assist them to understand wood biodeterioration and design effective prevention, mitigation and remediation strategies. The book presents case studies around the world to demonstrate the impact of biogenic deterioration on wooden Cultural Heritage and illustrates mechanisms and patterns in order to be a useful handbook of decay diagnosis. Lastly, by adopting a holistic approach to wood decay, basic concepts of wood technology, ecology, and deteriogens' biology are introduced, permitting readers of different scientific backgrounds to easily comprehend wood biodeterioration.
The late A.H. Shorter is widely acknowledged for his pioneering work on the history of the British paper-making industry, and his books continue to provide the basis for further research. The present volume brings together all his many articles, hitherto scattered across a variety of specialist publications and often virtually inaccessible. In these studies Dr Shorter tackled the subject with a broader scope than was possible in his books; in particular, they cover the period after 1800, tracing the changing geographical pattern of the industry. They also contain a wealth of detailed information on papermaking across Britain, notably in the counties of southwest England, that is impossible to find elsewhere, and is now made accessible through the comprehensive indexes to the volume. Le regrette A. H. Shorter est largement reconnu pour ses travaux originaux sur l'histoire de l'industrie papetiere britannique et ses ouvrages continuent d'Atre A la base de toutes recherches supplementaires. Le present volume rassemble la totalite de ses nombreux articles, jusqu'A present disperses sur tout un eventail de publications specialisees et bien trop souvent inaccessibles. Au travers de ces etudes, l'auteur s'attaque au sujet sur un rayon plus large que cela n'avait ete possible dans ses livres; couvrant en particulier la periode apres 1800 et traAant la structure geographique de l'industrie. Le recueil contient aussi abondance d'informations detaillees sur la fabrication du papier partout en Grande-Bretagne, notamment dans les contes du sud-ouest de l'Angleterre, et qu'il est impossible de trouver ailleurs.
Designed to work effectively both as a manual for the logging industry and as a textbook for timber harvesting courses. The sequence of the chapters on logging and associated activities coincides with the consecutive steps in logging - from acquiring the timber through its final transport. This second edition emphasizes environmental considerations - such as the increasing need to reduce excessive soil movement and subsequent siltation.
Clawson explores the issues related to timber management with a particular focus on the harvesting of timber stands in Decision Making in Timber Production, Harvest and Marketing. Originally published in 1977, her study considers biological, economic and management implications of timber growing as well as the decision-making process in U.S forest Situations including methods of analysis. This title will be of interest to students of Environmental studies and professionals.
Trees can reduce noise by sound reflection and absorption and this is the first book bringing together the widely scattered literature on noise abatement by urban trees. The book will interest those concerned with environmental management, noise control, and urban forestry. It is an invaluable source of information for environmental managers, foresters, acousticians, engineers, architects, scientists, and students.
Guide to the properties and uses of Southern African Wood is a fully illustrated, scientifically accurate guide to the characteristics, properties and uses of wood from 140 Southern African tree species. Species treatments include information on conservation status, uses, mechanical properties, durability, identification features, woodworking properties and comments from wood users on workability. Photographs of tree bark, untreated and treated wood, end-grain macrographs, as well as worked items. Provides information on historical uses, where trees grow, availability and sustainability of the woods and the practicalities of harvesting and processing. Superior quality text and excellent reproduction and printing. The only commercially available book which focuses on the properties of Southern African wood, written in a style that will appeal to a wide audience: professional woodworkers, designers, architects, wood dealers and wood collectors, hobbyists, botanists and anyone interested in trees and wood. A must-have for all who love wood and trees!
Clawson explores the issues related to timber management with a particular focus on the harvesting of timber stands in Decision Making in Timber Production, Harvest and Marketing. Originally published in 1977, her study considers biological, economic and management implications of timber growing as well as the decision-making process in U.S forest Situations including methods of analysis. This title will be of interest to students of Environmental studies and professionals.
As a forester interested in economics and policy, Daowei Zhang followed the softwood lumber dispute between the U.S. and Canada for nearly 20 years. Dubbed the 'Softwood Lumber War,' the conflict enveloped politicians and business leaders on both sides of the border and placed strains on the historically close economic and political relations between the two countries. This book is an unprecedentedly detailed evaluation of how the conflict began and how it was sustained for such a long period of time. The book considers the implications that may follow from the 2006 agreement between the nations, and the broader lessons that might be learned about international trade conflicts. The early 1980s was a difficult time for U.S. lumber producers. Finding their domestic market share in decline, they requested restrictions on Canadian lumber imports. Alleging that the Canadian producers were being subsidized, they eventually secured a 15 percent export tax on Canadian lumber in 1986. A long series of trade battles followed against a background of shortages in the U.S. timber supply, changing international markets, and the establishment of the North American Free Trade Agreement and the World Trade Organization. Canada and the United States are the world's largest trading partners, but, as Zhang demonstrates, it is a relationship in which domestic pressure groups, different institutional structures within each government, and differences in the relative economic power of each country remain extremely important determinants of foreign policy. The fact that the softwood lumber dispute has taken so long to resolve-and the prospect that the 2006 agreement has the potential to be undone by continuing litigation and trade friction-raise important questions about international relations in a world that is supposedly moving toward free trade.
As a forester interested in economics and policy, Daowei Zhang followed the softwood lumber dispute between the U.S. and Canada for nearly 20 years. Dubbed the 'Softwood Lumber War,' the conflict enveloped politicians and business leaders on both sides of the border and placed strains on the historically close economic and political relations between the two countries. This book is an unprecedentedly detailed evaluation of how the conflict began and how it was sustained for such a long period of time. The book considers the implications that may follow from the 2006 agreement between the nations, and the broader lessons that might be learned about international trade conflicts. The early 1980s was a difficult time for U.S. lumber producers. Finding their domestic market share in decline, they requested restrictions on Canadian lumber imports. Alleging that the Canadian producers were being subsidized, they eventually secured a 15 percent export tax on Canadian lumber in 1986. A long series of trade battles followed against a background of shortages in the U.S. timber supply, changing international markets, and the establishment of the North American Free Trade Agreement and the World Trade Organization. Canada and the United States are the world's largest trading partners, but, as Zhang demonstrates, it is a relationship in which domestic pressure groups, different institutional structures within each government, and differences in the relative economic power of each country remain extremely important determinants of foreign policy. The fact that the softwood lumber dispute has taken so long to resolve-and the prospect that the 2006 agreement has the potential to be undone by continuing litigation and trade friction-raise important questions about international relations in a world that is supposedly moving toward free trade.
Orietta Da Rold provides a detailed analysis of the coming of paper to medieval England, and its influence on the literary and non-literary culture of the period. Looking beyond book production, Da Rold maps out the uses of paper and explains the success of this technology in medieval culture, considering how people interacted with it and how it affected their lives. Offering a nuanced understanding of how affordance influenced societal choices, Paper in Medieval England draws on a multilingual array of sources to investigate how paper circulated, was written upon, and was deployed by people across medieval society, from kings to merchants, to bishops, to clerks and to poets, contributing to an understanding of how medieval paper changed communication and shaped modernity.
Volume 1 NEW topics included in Volume 1: moisture-accelerated creep ultrasonic determination of stiffness fracture residual stresses This newly revised and expanded reference contains basic principles and the latest techniques in paper and paperboard testing, fostering an understanding of theory and mechanical testing parameters to evaluate results and make improvements. Emphasizes new procedures that utilize advanced microscopy equipment Featuring over 1400 references and 1000 equations, drawings, tables, photographs, and micrographs, the Second Edition of the Handbook of Physical Testing of Paper: Volume 1 covers mechanical properties of fibers fiber-fiber bond properties the measurement of viscoelastic behavior for the characterization of time-, temperature-, and humidity-dependent properties failure phenomena bending stiffness edgewise compression strength tissue and corrugated board and more Volume 2 This newly revised and expanded reference focuses on physical paper testing in the laboratory and online, highlighting assays for paper interactions with light, moisture, electricity, and heat; liquid and gas penetration; microscopy analysis; and paper surface properties. Describes laboratory testing devices and details step-by-step procedures Featuring over 1300 references, drawings, equations, tables, photographs, and micrographs that facilitate in-depth investigation of the field, the Second Edition of the Handbook of Physical Testing of Paper: Volume 2 discusses roughness and friction abrasivity and tactile properties conditioned test atmospheres optical and appearance properties porosity and gas permeability electrical and thermal interactions equipping the paper and board testing laboratory interlaboratory reference systems and more
This book focuses on the mechanical properties and performance of products made of fiber-based materials. It helps students to develop skills for solving problems of product performance and engineering challenges in product development. Organized with a problem-based approach - practical examples of product performance are presented and the relevant mechanics are analyzed to deduce which material properties control the performance. The new edition covers state-of-the-art and green technologies as modeling of fiber networks and applications of nanocellulose.
This book describes the scientific principles that are used throughout the world to ensure the rapid, healthy growth of forest plantations. As the population of the world increases so does the amount of wood people use. Large areas of natural forests are being cleared every year and converted to other uses. Almost as large an area of plantation forests is being established annually to replace those lost natural forests. Eventually, plantations will produce a large proportion of the wood used around the world for firewood, building, the manufacture of paper and bioenergy. Forest plantations can also provide various environmental benefits including carbon storage, rehabilitation of degraded land, serving as disposal sites for various forms of industrial or agricultural waste and enhancing biodiversity in regions that have been largely cleared for agriculture. Whatever their motivation, plantation forest growers want their plantations to be healthy and grow rapidly to achieve their purpose as soon as possible. This book discusses how this is done. It is written for a worldwide audience, from forestry professionals and scientists through to small plantation growers, and describes how plantations may be grown responsibly and profitably.
This book offers the state of the art on the progress and accomplishments of 25 years of research at the Associate Laboratory LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials on lignin conversion to value-added products and their downstream separation. The first valorisation pathway presented for lignin is its partial depolymerisation by oxidation for the production of low molecular weight phenolic compounds, such as vanillin and syringaldehyde, and the second one is the lignin application as macromonomer for polyurethane synthesis. In this book, the authors present the integration of these two valorisation pathways as an exclusive vision of LSRE-LCM resulting from hands-on experience on reaction and separation processes: the integrated process for lignin valorisation. In this perspective, the lignin is oxidized to simultaneously produce syringaldehyde and vanillin, and the obtained by-products to produce a polyol for lignin-based polyurethanes, completing the lignin value chain. On the perspective of pulp mill-related biorefineries, a valorisation route for eucalyptus bark is also presented, focusing on LSRE-LCM experience on extraction and separation of bioactive polyphenols, giving some insights about further integration of extracted bark on biorefining operations.
This book covers the different aspects of tropical natural fibre composites in areas such as properties, design and analysis, manufacturing techniques, material selection of kenaf, oil palm, sugar palm, pineapple leaf, coconut, sugarcane and banana based fibre composites. Important properties such as mechanical and thermal of natural fibres as well their composites are presented. A study on the composite fibre-matrix interface is highlighted together with the design process and analysis of products from natural fibre composites. An overview on the manufacturing techniques (conventionally used to produce fibre glass fibre composites) such as pultrusion and filament winding is described to produce natural fibre composites. The importance of material selection system to obtain the most optimum materials for application in engineering components from natural fibre composites is covered with a strong focus on the concurrent engineering for natural fibre composites.
The application of ionic liquids to biomass for producing biofuels and chemicals will be one of the hot research areas during the next decade due to the fascinating properties of these versatile group of solvents that allow them to dissolve lignocellulosic materials. The present text provides up-to-date fundamentals, state-of-the-art reviews, current assessments and prospects in this area, including aspects of pretreatment, fermentation, biomass dissolution, cellulose transformation, reaction kinetics and physical properties, as well as the subsequent production of biofuels and platform chemicals such as sugars, aldehydes and acids. Auxiliary methods such as catalysis, microwave and enzymatic techniques used in the transformations are covered. Both researchers and practitioners are certain to find a wealth of information in the individual chapters, which were written by experts in the field to provide an essential basis for assessing possible pretreatment and transformation routes of biomass using ionic liquids, and for developing new methods and chemical processes. Dr. Zhen Fang is Professor of Bioenergy, head of the Chinese Academy of Sciences’ Biomass Group, Xishuangbanna Tropical Botanical Garden and is also an Adjunct Professor of Life Sciences, University of Science and Technology of China. Dr. Richard L Smith, Jr. is Professor of Chemical Engineering at the Graduate School of Environmental Studies, Research Center of Supercritical Fluid Technology, Tohoku University, Japan. Dr. Xinhua Qi is Professor of Environmental Science at Nankai University, China.
The book provides fundamental chemistry and properties of near-critical water (NCW) and supercritical water (SCW), criteria and challenges/solutions in reactor design for NCW and SCW processes, and up-to-date reviews and practice of a wide range of their applications in bio refineries including: production of hydrochars from biomass, SCW oxidation (SCWO) for waste treatment, SCW gasification (SCWG) of biomass and waste for hydrogen and methane production, hydrothermal liquefaction of biomass, production of chemicals and SCWO of biofuels for energy. It also presents techno-economic analysis of hydrogen production via SCWG of biomass. The book will be highly essential for both academic researchers and industrial practitioners for developing novel bio refinery technologies and processes employing NCW or SCW for treatment of various organic waste streams and production of bio-energy and bio-based chemicals from bio-renewable resources. Prof. Dr. Zhen Fang is leader and founder of biomass group, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, China. Dr. Chunbao (Charles) Xu is currently an Associate Professor of Chemical Engineering and NSERC/FP Innovations Industrial Research Chair in Forest Bio refinery at Western University, Canada.
This book presents detailed information on the production and properties of carbon fibers derived from lignin precursors. Focusing on future directions in the carbon fiber industry, it also introduces a novel process for obtaining high-purity lignin, a key aspect in the manufacture of high-quality carbon fiber. Carbon fiber is currently the most preferred lightweight manufacturing material and is rapidly becoming the material of choice for manufacturers around the world. Although more than 80% of commercial carbon fiber is estimated to use PAN (polyacrylonitrile) as a precursor, carbon fiber manufactured from PAN is expensive and therefore its application is limited to high-performance structural materials. Lignin is the second most abundant biopolymer in nature after cellulose and offers a carbon-rich, renewable resource. As a byproduct of the pulp and paper industry and the production of cellulosic ethanol, lignin is also available at low cost, making it an economically attractive alternative to PAN for the production of carbon fibers, as highlighted in this book. The information presented will be of interest to all those involved in the investigation of carbon fiber materials, carbon fiber manufacturers and carbon fiber users.
Pulp and paper mill industries are always associated with the disposal problem of highly contaminated sludge or bio-solids. The development of innovative systems to maximize recovery of useful materials and/or energy in a sustainable way has become necessary. The management of wastes, in particular of industrial waste, in an economically and environmentally acceptable manner is one of the most critical issues facing modern industry, mainly due to the increased difficulties in properly locating disposal works and complying with even more stringent environmental quality requirements imposed by legislation. This book presents a general Introduction on waste management in the pulp and paper industry and contains topics on the generation of waste in pulp and paper mills, waste composition, methods of sludge pre-treatment, processes and technologies for conversion of pulp and paper mill waste into valuable products, waste reduction techniques employed in the pulp and paper Industry worldwide and future trends.
The book is a fundamental reference source on reaction wood for wood scientists and technologists, plant biologists, silviculturists, forest ecologists, and anyone involved in the growing of trees and the processing of wood. It brings together our current understanding of all aspects of reaction wood, and is the first book to discuss both compression wood and tension wood. Trees produce reaction wood to maintain the vertical orientation of their stems and the optimum angle of each branch. They achieve this by laying down fibre cell walls in which differences in physical and chemical structure from those of normal fibres are expressed as differential stresses across the stem or branch. This process, while of obvious value for the survival of the tree, causes serious problems for the utilisation of timber. Timber derived from trees containing significant amounts of reaction wood is subject to dimensional instability on drying, causing twisting, bending and splitting. It is also difficult to work as timber, and for the pulp and paper industry the cost of removing the increased amount of lignin in compression wood is substantial. This has both practical and economic consequences for industry. Understanding the factors controlling reaction wood formation and its effect on wood structure is therefore fundamental to our understanding of the adaptation of trees to their environment and to the sustainable use of wood. The topics covered include: -Morphology, anatomy and ultrastructure of reaction wood -Cell-wall polymers in reaction wood and their biosynthesis -Changes in tree proteomes during reaction wood formation -The biomechanical action and biological functions of reaction wood - Physical and mechanical properties of reaction wood from the scale of cell walls to planks -The detection and characterisation of compression wood -Effects of reaction wood on the performance of wood and wood-based products - Commercial implications of reaction wood and the influence of forest management on its formation |
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