Avient launches first non-halogenated flame retardant solution for E&E PC which does not need PTFE anti-drip (PFAS). Polycarbonate offers heat resistance, impact strength, stability and aesthetic qualities needed in electronic and electrical equipment. Non-halogenated (PIN) flame retardants can ensure fire resistance, essential for safety in electrical components, in contact with electrical currents with potential for overheating, short circuits or arcing. An important parameter for fire safety is that the polymer should not melt and drip, because this can spread fire. PIN flame retardant systems to date generally use very low doses of PTFE anti-drip (polytetrafluoroethylene, <0.5%), but this chemical is a PFAS (polyfluoroalkyl substances, which for which a Restriction has been announced by the EU, see pinfa Newsletter n°148). Avient’s new line of non-PTFE PIN FRs are halogen-free to IEC 61249-2-21 and in PC can achieve GWFI fire performance 960°C). Delivered as FR concentrates, they can be combined with colours and other additives and used with both virgin and recycled polycarbonates.
“Avient Unveils PTFE-Free and Non-Halogen Flame Retardants for Polycarbonate at Fakuma 2023”, 9 October 2023 https://www.avient.com/news/avient-unveils-ptfe-free-and-non-halogen-flame-retardants-polycarbonate-fakuma-2023