19-08-2014, 03:01 PM
In paper industry about 8-10 tonnes of black liquor effluent is generated per tonne of finished paper produced. Here an attempt is made to develop a primer paint composition based on lignin obtained from black liquor as a partial replacement for conventional alkyd resin. Lignin has been used as a replacement for alkyd resin to an extend of 40%.
In paper industry about 8-10 tonnes of black liquor effluent is generated per tonne of finished paper produced. Here an attempt is made to develop a primer paint composition based on lignin obtained from black liquor as a partial replacement for conventional alkyd resin. Lignin has been used as a replacement for alkyd resin to an extend of 40%. Unlike the conventional alkyd resin, efforts were made to prepare a novel alkyd resin with short oil length (20%) using chain stopper. The overall consumption of petroleum solvent in primer is around 25% which is much lesser than conventional primer which utilizes around 40% solvent. The physicochemical and film properties of primer have been studied and compared with commercial sample. The cost of the present product is less than the conventional product.
Keywords: Alkyd resin, black liquor, lignin, linseed oil, primer,