Development Of Pvc Composition Recipe
A method for producing esters of phthalic acid with ethoxylated alcohols by catalytic esterification in the presence of a paratoluene sulfonic acid catalyst is described. Recipes of PVC compositions with the use of the obtained plasticizers and with the addition of 4-amino-1,4,5,6-tetrahydro-1,2,4-triazinone-5 as a UV absorber were designed, their physical and mechanical properties were determined. Studies have shown that PVC formulation, containing diphenoxyethyl phthalate and 4-amino-1,4,5,6-tetrahydro-1,2,4-triazinon-5, may be recommended for testing in the production of compounds with increased rates of heat-and-light aging