A STUDY COMPARING ISOPHTHALIC AND TEREPHTHALIC BASED POLYMERS IN GASOLINE /ALCOHOL AND FUEL C/ALCOHOL MIXTURES

This paper explores isophthalic acid and terephthalic acid based unsaturated polyester resins and the role of reduced styrene content( VOC) on the corrosion performance in gasoline / alcohol and reference fuel C / alcohol mixtures. Various studies conducted with ASTM C581 and UL1316 test methods conclude that the terephthalic resins provide superior performance over isophthalic resins. A new low styrene TPA based resin meets the All Fuels requirement of UL1316.