An eco-friendly way to fire retardant flexible polyurethane foam: layer-by-layer assembly of fully bio-based substances

Wang, Xin and Pan, Ye-Tang and Wan, Yin Tao and Wang, De-Yi (2014). An eco-friendly way to fire retardant flexible polyurethane foam: layer-by-layer assembly of fully bio-based substances. "RSC Advances" (n. 86); pp. 46164-46169. ISSN 2046-2069. https://doi.org/10.1039/c4ra07972h.

Description

Title: An eco-friendly way to fire retardant flexible polyurethane foam: layer-by-layer assembly of fully bio-based substances
Author/s:
  • Wang, Xin
  • Pan, Ye-Tang
  • Wan, Yin Tao
  • Wang, De-Yi
Item Type: Article
Título de Revista/Publicación: RSC Advances
Date: 2014
ISSN: 2046-2069
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The objective of the present study is to develop fully renewable and environmentally benign techniques for improving the fire safety of flexible polyurethane foams (PUFs). A multilayered coating made from cationic chitosan (CS) and anionic alginate (AL) was deposited on PUFs through layer-by-layer assembly. This coating system exhibits a slight influence on the thermal stability of PUF, but significantly improves the char formation during combustion. Cone calorimetry reveals that 10 CS-AL bilayers (only 5.7% of the foams weight) lead to a 66% and 11% reduction in peak heat release rate and total heat release, respectively, compared with those of the uncoated control. The notable decreased fire hazards of PUF are attributed to the CS-AL coatings being beneficial to form an insulating protective layer on the surface of burning materials that inhibits the oxygen and heat permeation and slows down the flammable gases in the vapor phase, and thereby improves the flame resistance. This water-based, environmentally benign natural coating will stimulate further efforts in improving fire safety for a variety of polymer substrates.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7Cost Action MP1105FLARETEXPaul KiekensUnspecified
Government of SpainRYC-2012-10737UnspecifiedUnspecifiedUnspecified

More information

Item ID: 33090
DC Identifier: http://oa.upm.es/33090/
OAI Identifier: oai:oa.upm.es:33090
DOI: 10.1039/c4ra07972h
Official URL: http://pubs.rsc.org/en/content/articlelanding/2014/ra/c4ra07972h#!divAbstract
Deposited by: Memoria Investigacion
Deposited on: 22 Jan 2015 15:49
Last Modified: 03 May 2019 10:23
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