ANALYSIS OF DRYING OIL AND LOCAL OIL BLENDS FOR PRODUCTION OF WOOD VARNISH


Drying oils have very wide industrial applications. Drying oils (Linseed, poppy, safflower, etc.) are vegetable oils used to modify the consistency, gloss and drying time of colour. They harden to a tough, solid film after a period of exposure to air. This work involved the harnessing of locally sourced oil blends to substitute for the imported linseed oil that will reposition our economy for self-reliance in Post Covid-19 Era. Here, five oil blends (linseed/castor, linseed/ soybean, melon/soybean, melon/castor and linseed/melon) were used in the ratio of 80:20, 60:40, 40:60 and 20:80. The solvent extraction method was used to extract oil from the locally available oil seeds (castor oil, melon and soybean). The various oil blends were each mixed with Alkyd modified resin, Pb-Co Naphthenate (Drier), and Acetone and N-butanol (solvents) to produce varnish of a homogenous nature. It was observed that melon and soybean, each blended with linseed oil, are good quality oil for varnish production. Therefore melon and soybean, each blended with 20% linseed oil are recommended for use in production of wood varnish in industries as their application will reduce the cost of using imported linseed oil, reduce health risks associated with the pandemic and also reposition the economy for self-reliance in Post Covid-19 Era. KEYWORDS: Extraction, Distillation, Reflux, Substitution, Homogenous, etc.


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