Research on The Possibility to Utilize Crude Glycerol and Waste Polyethylene Terephthalate For Production of Alkyd Resins

Nikola Todorov; DonkaTodorova

Volume : III, Issue : X, October - 2014

Research on The Possibility to Utilize Crude Glycerol and Waste Polyethylene Terephthalate For Production of Alkyd Resins

Nikola Todorov, Donkatodorova

Abstract :

The possibility to utilize two waste products – crude glycerol (CGly) and waste polyethylene terephthalate (PET) for production of alkyd resins was investigated. Flakes, obtained from PET beverage bottles were depolymerized with CGly– a side product by the biodiesel production.Two fractions were separated from the depolymerization product – water soluble (WSF) and water insoluble (WIF). Two medium oil alkyd resins were obtained from WSF (or WIF), phthalic anhydride, glycerol and mixture of sunflower oil and linseed oil by the alcoholysis method. A reference alkyd resin was synthesized from phthalic anhydride, glycerol and a mixture of sunflower oil and linseed oil. Progress of the polycondensation reaction, wasmonitored by periodically checking the acid number of the reaction mixture. Films, prepared from alkyd resins solutions in xylene were dried at 25�C. Some of their properties were studied – drying time, hardness and adhesion.