Dimensional stabilization of wood with isocyanate compounds.
نویسندگان
چکیده
منابع مشابه
Effect of Heat Upon the Dimensional Stabilization of Wood
HEATING WOOD TO TEMPERATURES considerably above normal seasoning temperatures is the oldest, simplest, and cheapest means now known for stabilizing the dimensions of wood, but the treatment, unfortunately, embrittles the wood significantly (8, 9, 13). Dimensional stabilization of wood with heat has been previously shown to be dependent upon a combination of temperature and time. The time requi...
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Chemical modification of wood with isopropenyl acetate (IPA) using iodine (I2) as catalyst has been carried out. Rubber wood (Hevea brasiliensis) specimens were reacted with IPA using iodine (I2) catalyst at 95°C up to 10 h under solvent free conditions. The effect of catalyst concentration and reaction time was studied. The extent of acetylation was measured by determining weight percent gain ...
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Many water repellents, such as classic wood preservatives have the disadvantage of being harmful to the environment. Therefore, interest increased even eco-friendly, or of biodegradable material. Natural oils (tallow, linseed oil), appears to be capable of preventing the wood water uptake. However, the total amount of oil required to achieve a high penetration of the sapwood. The aim of this st...
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The reaction between vinylene trithiocarbonate and chlorosulfonyl isocyanate proceeds by initial attack of thiocarbonyl on the isocyanate carbon.
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in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...
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ژورنال
عنوان ژورنال: Journal of the Society of Materials Science, Japan
سال: 1988
ISSN: 1880-7488,0514-5163
DOI: 10.2472/jsms.37.555