Download or read book Varnishes and Their Components written by Robert Selby Morrell and published by . This book was released on 1923 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Varnishes Components Classification Applications and Literature written by Kiran V. Mehta and published by GRIN Verlag. This book was released on 2016-09-05 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: Document from the year 2016 in the subject Chemistry - Organic Chemistry, , language: English, abstract: This book presents the fundamentals and most recent scenario of varnishes. Components, classification, characteristics and applications of varnishes are discussed in the book. It is written in comprehensive manner. Wood is valuable for structural purpose and decorative purpose also. Wood has plant origin. The wood used for building construction is known as Timber. Forests produce a huge quantity of timber. Cellulose, Hemicellulose, Lignin and other substances are the constituents of wood. Aliphatic compounds, phenols, fats, waxes, terpenes, terpenoids etc. are found in woods. Stilbenes, Tannins, Flavonoids and Lignanas are phenolic compounds available in woods. Coating of varnishes is useful for wood, metal and their derivatives. It is also useful for plastic and masonry. Varnish is a formulation of resinous matter, as copal or lac, dissolved in oil or in alcohol or any other liquid. When a varnish is applied to the surface of wood or metal, it dries and leaves a hard and generally transparent coating. It is a shiny coating which is applied on a floor or furniture. It dries clear and luminous. It gives a hard, lustrous and transparent finish to the surface. It gives furniture, wooden materials, artwork and other objects a glossy look. It also protects the surface. Usually varnish is prepared from resin, solvent and oil. The Medieval Latin root word for varnish is ‘vernix’ that means odorous or fragrant resin. Some varnishes harden immediately as the solvent evaporates. So, it produces a film. The other varnishes harden slowly over a period of time. The process of hardening involves oxidation and polymerization. Shellac, Resin and Lacquer dry immediately. Acrylic and some of the water based varnishes evaporate the water or solvent and dry over a period of time. It is also known as curing process of varnishes. Oil based, polyurethane and epoxy varnishes also dry slowly to hard finish. Generally, the factors like following affect curing process of a varnish: - Temperature - Humidity of atmosphere - Components of varnish. Wood kept outside is normally exposed to big variations of temperatures and weather. It is also exposed to Ultra Violet(UV) rays in the atmosphere. Changes in humidity also affect the wood which results in contraction or expansion of wood. These all factors damage the wood or wooden articles. Hence, varnishes can be used to protect wood and wooden articles.
Download or read book Varnish Constituents written by Herbert Walter Chatfield and published by . This book was released on 1947 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Note written by and published by . This book was released on 1925 with total page 1062 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry of Paints written by Frank Vernon Evans and published by . This book was released on 1928 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lunge and Keane s Technical Methods of Chemical Analysis 2d Ed Edited by Charles A Keane and P C L Thorne written by Georg Lunge and published by . This book was released on 1928 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Publications Relating to Paint Painting Varnish Lacquer Bitumens and Allied Subjects written by and published by . This book was released on 1939 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry of the Natural Synthetic Resins written by Thomas Hedley Barry and published by . This book was released on 1926 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Violin Varnish written by Helen Michetschläger and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Resources of the Empire and Their Development written by Evans Lewin and published by . This book was released on 1924 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Violin Varnish written by Joseph Michelman and published by Read Books Ltd. This book was released on 2011-03-23 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: After more than eight years of extensive research on the varnish used by the Italian Violin Makers from 1550 to 1750 A. D., it has not been possible to corroborate the results in the chemical laboratory. This is due entirely to the unavailability of samples of the varnish for confirmatory analysis. Violins made by the Italian masters of this period are so valuable and so scarce that a small sample of the varnish has not been procurable for experimental purposes. Therefore, synthesis must precede analysis . . . . and with no assistance from the latter. This, then, will explain the sub-title of this book as: "A Plausible Re-creation of the Varnish Used by the Italian Makers Between the Years 1550 and 1750 A. D." However, the results of this investigation are so logical and so deeply supported by a vast amount of convincing evidence, that publication of the book is in order. First, possibly the findings will be confirmed, or otherwise, by investigators who may be more fortunate in having access to material from authentic violins made by the old masters. Confirmatory chemical tests will be suggested; it should be comparatively simple, especially through modern micro-analytical methods, to determine the presence of certain constituents in the varnish. The subject matter of this book will of necessity become technical, especially when the theoretical aspects are considered. It is realized that not everyone who will be interested in the rediscovery of the old Italian varnish will also be interested in the scientific deductions and conclusions. For this reason, a chapter will be included in which the preparation of the materials from which the varnish is made, the formulation of the varnish and its application will be reduced to the simplest terms. The old masters who lived several hundred years ago and who possessed none of the advantages of modern technology also used only the simplest technique in varnishing and finishing their violins.
Download or read book Journal of the Oil Colour Chemists Association written by and published by . This book was released on 1922 with total page 1098 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry of Drying Oils written by Robert Selby Morrell and published by . This book was released on 1925 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry and Technology of Paints written by Maximilian Toch and published by . This book was released on 1925 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemistry in Industry written by Harrison Estell Howe (1881-, ed) and published by . This book was released on 1925 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemistry in Industry written by Harrison Estell Howe and published by . This book was released on 1925 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Resources of the Empire written by and published by . This book was released on 1924 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
