Wood Coatings E-Book

Jorge Prieto

• Herausgeber: Vincentz Network
• Kategorie: Wissenschaft und neue Technologien
• Sprache: Englisch

Seitenzahl: 759

Veröffentlichungsjahr: 2018

Beschreibung

Discover the current trends in industrial wood coatings! The comprehensive standard work from Jorge Prieto and Jürgen Kiene focuses on interior and exterior coatings for wood and wood-based materials. It compares classic solvent-borne wood coatings with modern UV-curing systems and water-borne coating systems. Moreover, guide formulations and actual procedures for coatings are shown in detail. Summarized: this book provides a comprehensive overview, with practical solutions and support for everyone who deals with industrial wood coatings.

Leseprobe

Jorge Prieto

Jürgen Kiene

Wood Coatings

Chemistry and Practice

Cover: Aaron Kohr, AdobeStock

Bibliographische Information der Deutschen Bibliothek

Die Deutsche Bibliothek verzeichnet diese Publikatiosn in der Deutschen Nationalbibliographie; detaillierte bibliographische Daten sind im Internet über http://dnb.ddb.de abrufbar

Prieto, Jorge and Kiene, Jürgen:

Wood Coatings: Chemistry and Practice

Hanover: Vincentz Network 2018

European Coatings Library

ISBN 3-86630-673-8

E-Book-ISBN 978-3-86630-673-8

© 2018 Vincentz Network GmbH & Co. KG, Hanover

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Layout: Danielsen Mediendesign, Hanover, Germany

E-Book-Production: readbox publishing, Dortmund, www.readbox.net

European Coatings Library

Jorge Prieto

Jürgen Kiene

Wood Coatings

Chemistry and Practice

Translated by Harald-Bernd Schwarz

Foreword

This compact standard reference for the interior and exterior coating of wood and wood-based materials as well as for the decor finish foil coating mainly focuses on the industrial wood coating systems and their coating processes. The significance of the coating of wood and wood-based materials is demonstrated by market data, coating technologies and processes.

10 years after the first edition in German, some trends in the industrial wood coatings are emerging. The implementation of REACH and the VOC Directive has made a significant impact on commodities markets. The processes have become more and more effective. Above all, companies with a corporate structure have profited from this.

The next ten years will also remain exciting. In Germany, the Federal Government wants to initiate the so-called 4th Industrial Revolution with the program 4.0. The industrial production shall be integrated with the modern information and communication technology. Similar developments can also be seen in other countries. In general, the global trend is also evident to apply more environmentally friendly and more efficient coating procedures.

The book gets started with a brief historical overview of wood coatings as well as with an introduction to the technology of wood and wood-based materials. In addition to the classic solvent-borne wood coatings, the modern UV-curing systems and water-borne coating systems as far as powder coatings predominantly are explained with all their advantages and disadvantages. The guide formulations and current procedures for the coating of wood and wood-based materials are depicted in detail. The current window coatings are evaluated on their properties and their applications. The coating of paper foils and their market significance are discussed. Eco-efficient procedures of applications such as “Vacumat” coating, rolling, printing and recovery of coatings are dealt with. The book is rounded off with statements to current trends in the industrial coating of wood and wood-based materials. The practical relevance of this book provides the reader with practical solutions and support for many unanswered questions. By virtue of this highly-complex subject-matter, the authors make no claim to completeness.

This book is aimed at all professionals dealing with the production and coating of wood and wood-based materials: A comprehensive overview on the chemistry and technology of wood coating systems are given to vocational school students, university students, engineers, machine manufacturers, manufacturer of raw materials, coatings, windows, furniture, parquets and doors. A comprehensive reference list is provided to the interested reader in each chapter.

On this occasion the authors would like to thank all the employees and colleagues who contributed to the implementation of the book by means of suggestions, provisions of bibliography and joyous discussions. We would like to thank Ulrich Désor, Rico Emmler, Christiane Swaboda, Mario Beyer, Marcel Prieto, Lars Passauer and Kurt Plöger. Our thanks also go to the co-authors whom we have been able to motivate for this project.

Our special thanks go to our families who not only had to dispense with us on many weekends but have always spurred us on to complete this great project especially in difficult phases.

Senden and Dusseldorf, Germany, January 2018

Jorge Prieto and Jürgen Kiene

Contents

1 Introduction

1.1 History and development of furniture coatings

2 Wood and wood-based materials

2.1 Introduction

2.2 Microscopic wooden construction

2.3 Physical and technological properties of wood

2.3.1 Behaviour of wood against humidity

2.3.2 Hardness of the wood

2.4 Chemistry of the wood, wood components and wood protection

2.4.1 Wood components

2.4.2 Wood protection

2.4.3 Chemical and thermal modifications of wood

2.5 Wood products and wood-based materials

2.5.1 Wood-based materials consisting of sawn wood

2.5.2 Veneers

2.5.3 Wood-based materials based on chipboard panels

2.5.4 Wood fibre boards

2.5.5 Lightweight construction materials

3 Coatings for wood and wood-based materials

3.1 Coatings for indoor applications

3.1.1 Wood stains

3.1.2 Cellulose nitrate coatings (CN coatings)

3.1.3 Acid-curing coatings

3.1.4 Two-component polyurethane coating (2C PU coating)

3.1.5 Unsaturated polyester coatings (UP coatings)

3.1.6 Radiation curing coating systems

3.1.7 Water-borne coatings

3.1.8 Oils, waxes and natural resins

3.1.9 Powder coatings

3.1.10 Coating of decor finish foils

3.2 Coating of wood and wood-based materials for outdoor applications

3.2.1 Components of solvent-borne coatings

3.2.2 Components of water-borne coating formulations

3.2.3 Tasks and functions of wood coatings for outdoor applications

3.3 References

4 Pre-treatment of wood and wood-based materials

4.1 Grinding

4.1.1 Abrasive and abrasive carrier

4.1.2 Grinding procedures and grinding aggregates

4.2 Smoothing process

4.2.1 Mechanical smoothing

4.2.2 Thermo smoothing

4.3 Bleaching

5 Application process for the coating of wood

5.1 Dipping

5.2 Flow coatings

5.3 Tumbling

5.4 Spraying

5.5 Curtain coating

5.6 Rolling coater process

5.7 ‘Vacumat’

6 Recycling processes for coating systems

7 Drying and curing processes

7.1 Air drying

7.2 Convection drying

7.3 Heat radiation drying (IR radiation)

7.4 High frequency drying and microwave drying

7.5 UV curing

7.6 Electron beam curing

7.6.1 Introduction

7.6.2 Mechanism of the EB technology

7.6.3 Generation of electron beams

7.6.4 Process parameter

7.6.5 Plant concepts

7.6.6 Advantages and disadvantages of the EB technology

8 Discolouring of wood

9 VOC emissions

9.1 VOC emissions during processing in installations

9.1.1 Solvents Regulation

9.2 Residual emissions after drying and curing of coated wood and wood-based materials

9.2.1 Residual emissions from furniture surfaces

10 Trends

Authors

Index