Ultra-Fast Layer-by-Layer Approach for Depositing Flame Retardant Coatings on Flexible PU Foams within Seconds

Ultra-Fast Layer-by-Layer Approach for Depositing Flame Retardant Coatings on Flexible PU Foams within Seconds

In this letter, we are presenting a novel approach for the deposition of layer-by-layer (LbL) coatings capable of conferring flame retardant properties to flexible polyurethane foams exploiting subsecond deposition times. The process yields nanoscale coatings able to reduce by 33% one of the main fi...

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Bibliographic Details
Published in:ACS applied materials & interfaces Vol. 8; no. 10; pp. 6315 - 6319
Main Authors: Carosio, F, Alongi, J
Format: Journal Article
Language:English
Published: United States American Chemical Society 16-03-2016
Subjects:
chitosan
cone calorimetry
polyurethane foams
layer by layer
flame retardancy
fast deposition
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Summary:In this letter, we are presenting a novel approach for the deposition of layer-by-layer (LbL) coatings capable of conferring flame retardant properties to flexible polyurethane foams exploiting subsecond deposition times. The process yields nanoscale coatings able to reduce by 33% one of the main fire safety parameters, namely the heat release rate peak, with a total treatment time of only 2.5 s. This new approach turned out to be three to 4 orders of magnitude faster than conventional LbL treatments. Such results make it possible for the exploit of LbL as a competitive, efficient and ecofriendly technology at industrial scale.
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ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.6b00598