Bi-Layered, Ultrathin Coating Initiated Relay Response to Impart Superior Fire Resistance for Polymeric and Metallic Substrates

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: April 25, 2025

Abstract Developing high-efficient flame-retardant coatings is crucial for fire safety polymer and battery fields. Traditional intumescent ceramifiable struggle to provide immediate prolonged protection simultaneously, which limits the applicability. To address this, an innovative bi-layered coating with organic/nano-inorganic additives inspired by differential response behaviors, enabling relay effect both fast-acting extended protection. Specifically, two layers function continuously in form of a relay. With mere 320 microns, withstands temperatures up 1400 °C at least 900 s. Consequently, effective prevented burn through aluminum plates glass fabric-reinforced epoxy resin, otherwise were burned 135 173 s, respectively. Meanwhile, suppressed formation decomposition solid interface layer lithium soft-package batteries, leading electrochemical stability safety. Additionally, fast endows polyurethane foam rapid self-extinguishing, preventing ignition even under exposure strong °C. Shortly, our work offers new insights into design development thin, high-performance, multi-application coatings.

Language: Английский

Enhanced flame retardancy of polyurethane foam with alginate-based flame-retardant coating

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 289, P. 138968 - 138968

Published: Dec. 18, 2024

Language: Английский