[3PS-213]
Synergistic Flame-Retardant Coatings through Sequential Deposition of Copper-Catalyzed Polydopamine and Phosphorus-Nitrogen Compounds
발표자신상빈 (한국화학연구원)
연구책임자유영창 (한국화학연구원)
Abstract
Polydopamine (PDA) is known for its versatile adhesion, yet traditional air-oxidation methods are slow and often yield uneven coatings. In this study, we employed a CuSO₄/H₂O₂-triggered oxidation system to rapidly generate thin, uniform PDA layers on polymer substrates. To address the inherent flammability of polymers without compromising their bulk mechanical properties, we functionalized this PDA layer with a DOPO-based phosphorus-nitrogen flame retardant. The PDA coating serves as a reactive platform, enabling the covalent attachment of DOPO derivatives. The functionalized coating provides a dual-phase flame-retardant mechanism: it releases radical scavengers (PO- ) in the gas phase to interrupt combustion and promotes robust char formation in the condensed phase.