화학공학소재연구정보센터
Przemysl Chemiczny, Vol.82, No.7, 475-478, 2003
Alkyl esters of Diels-Alder terpene hydrocarbon-maleic anhydride adducts as PVC plasticizers
Suspension PVC, 100 g, plasticized with 2-ethythexyl or 2-Bu ester of title adducts, 15-50 g, epoxidized soybean oil 5.5 g, and Ca stearate 0.3 g, was used to make transparent films. They were examined for tensile strength, relative elongation at break, Shore hardness, resistance to extraction (gasoline, soybean oil) and to high and low temperatures, and compared with data determined for DOP-plasticized PVC transparencies used as the reference. Tensile strength, initially inferior to that of the reference, fell as plasticizer percentage was raised and, upwards of 30%, leveled off and neared to others. Elongations followed similar and close courses. Shore hardness was superior, >100degreesSh at DOP = 35%; upwards of 35%, it decreased but remained always by at least 10degreesSh higher than that of the reference. Resistance to 40-160degreesC was superior with the 2-Bu and inferior with the other plasticizer, at low temperatures, resistance was alike for each material. Up to 35%. extraction in soybean oil was identical; upwards of 35016, the 2-Bu plasticizer resulted in considerably higher wt. increments.