PREPARATION OF ALKYD RESIN ON THE BASE OF CRUDE SUNFLOWER FATTY ACIDS METHYL ESTERS AND CRUDE GLYCEROL

摘要

Transesterification of sunflower oil with methanol to form fatty acid methyl esters (FAMEs) using a NaOH catalyst was carried out. Two phases were obtained. The lighter phase contains the main product fatty acids methyl esters, which was used without purification. The heavier phase (glycerol phase) was purified by acidification with phosphoric acid to give crude glycerol with a glycerol content of 81%. Two medium oil alkyds were prepared - one based on sunflower fatty acids methyl esters, crude glycerol and phthalic anhydride and one reference based on sunflower oil, crude glycerol and phthalic anhydride. The results of the studies showed that the alkyd based on sunflower fatty acids methyl esters was obtained at a lower temperature for almost two times less time and its properties exceed the properties of the reference alkyd.