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Intumescent Polydopamine Coatings for Fire Protection

Published

Author(s)

Douglas M. Fox, Whirang Cho, Laura J. Dubrulle, Phillip Grutzmacher, Mauro Zammarano, Douglas M. Fox

Abstract

Polydopamine coatings containing additional bioderived flame retardants were used as coatings for polyurethane foam and cardboard. The ability to form intumescing coatings was crucial for achieving good flame protection. Dopamine can effectively intercalate clay to produce well distributed coatings. The amount of polydopamine coating applied to clay platelets and morphology of the aggregates formed was greatly affected by the catalyzing base used. Microcombustion calorimetry, flame spread, and cone calorimetry experiments reveal that aminophosphonic acid and glycine phytate produce intumescing chars that, in combination with montmorillonite, form a protective barrier for both foam and cardboard.
Citation
Green Materials

Keywords

bioinspired, coatings, dopamine, flammability, morphology, natural materials

Citation

Fox, D. , Cho, W. , Dubrulle, L. , Grutzmacher, P. , Zammarano, M. and Fox, D. (2020), Intumescent Polydopamine Coatings for Fire Protection, Green Materials, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=928865 (Accessed May 17, 2021)
Created March 8, 2020, Updated August 24, 2020