| Abstract: | Sulfonate salts are commonly employed together with other standard flame retardant (FR) additives to improve FR performance in polycarbonate resins. The structure and loading level of the salt and the synergistic FR additives determine the level of FR performance. The salts show varying levels of FR effetiveness as measured by different flammability test methods. In this paper, two common sulfonate salt additives in Lexan polycarbonate resins are discussed. FR effectiveness measured by UL94, OSU and cone calorimeter flammability testing, physical and mechanical properties, and processability of the thermoplastic products are compared. TGA-IR studies and the ability to predict FR performance are also discussed. |
