Effect of layer-by-layer self-assembled sepiolite-based nanocoating on flame retardant and smoke suppressant properties of flexible polyurethane foam
Source abstract
Abstract
Abstract In this study, a facile and water-based route was developed for fabricating flame retardant and smoke suppressant flexible polyurethane foam (FPUF). FPUF was deposited with a multilayered coating by layer-by-layer (LbL) self-assembled method, which was composed of the positively charged polyethyleneimine (PEI) and negatively charged alginate and sepiolite. The prepared coatings were shown to be successfully constructed on the surface of FPUF, as characterized by scanning electron microscopy and energy dispersive X-ray spectroscopy. Subsequently, the combustion behavior of FPUF was evaluated by cone calorimeter. Results showed that, with 6 bilayers PEI/sepiolite + alginate coating, the peak heat release rate and total heat release of PU-6 were reduced 76% and 27%, respectively, as compared with those of untreated sample. Meanwhile, the deposited coating could effectively reduce the smoke production of FPUF, as evidenced by the remarkable reduction of smoke production rate and total smoke production for the treated FPUF.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Flame retardant materials and properties · Fire dynamics and safety research · Polymer Nanocomposites and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (22)
Show source-provided references
1. Identification of the isocyanates generated during the thermal degradation of a polyurethane car paint10.1016/j.jaap.2003.10.007 ↗
2. Phosphorous-filled nanobrick wall multilayer thin film eliminates polyurethane melt dripping and reduces heat release associated with fire10.1016/j.polymdegradstab.2013.09.028 ↗
3. Ultra-fast layer-by-layer approach for depositing flame retardant coatings on flexible PU foams within seconds10.1021/acsami.6b00598 ↗
4. Controlling the melt dripping of polyester fabrics by tuning the ionic strength of polyhedral oligomeric silsesquioxane and sodium montmorillonite coatings assembled through layer by layer10.1016/j.jcis.2017.09.059 ↗
5. Functionalized sepiolite for heavy metal ions adsorption10.1016/j.desal.2007.11.029 ↗
6. Multiwalled carbon nanotubes and sepiolite nanoclays as flame retardants for polylactide and its natural fibre reinforced composites10.1016/j.compositesa.2010.03.004 ↗
7. Rapid growing clay coatings to reduce the fire threat of furniture10.1021/am405259n ↗
8. Diffusion of polyphosphates into (poly(allylamine)-montmorillonite) multilayer films: flame retardant-intumescent films with improved oxygen barrier10.1021/la203252q ↗
9. Flame retardant polypropylene through the joint action of sepiolite and polyamide 610.1016/j.polymdegradstab.2013.07.018 ↗
10. Exceptionally flame retardant sulfur-based multilayer nanocoating for polyurethane prepared from aqueous polyelectrolyte solutions10.1021/mz400105e ↗
11. Flame retardancy and thermal decomposition of flexible polyurethane foams: Structural influence of organophosphorus compounds10.1016/j.polymdegradstab.2012.07.019 ↗
12. Study of the thermal decomposition of a sepiolite by mid- and near-infrared spectroscopies10.1016/j.poly.2010.08.009 ↗
13. Effect of fully biobased coatings constructed via layer-by-layer assembly of chitosan and lignosulfonate on the thermal, flame retardant, and mechanical properties of flexible polyurethane foam10.1021/acssuschemeng.5b01423 ↗
14. Influences of metal ions crosslinked alginate based coatings on thermal stability and fire resistance of cotton fabrics10.1016/j.carbpol.2017.04.065 ↗
15. The synergistic effect of organically modified sepiolite in intumescent flame retardant polypropylene10.1016/j.eurpolymj.2016.01.041 ↗
16. Inorganic nanoparticle thin film that suppresses flammability of polyurethane with only a single electrostatically-assembled bilayer10.1021/am504455k ↗
17. Flame retardant coatings prepared by layer by layer assembly: a review10.1016/j.cej.2017.09.194 ↗
18. Effect of vinyl acetate content and electron beam irradiation on the flame retardancy, mechanical and thermal properties of intumescent flame retardant ethylene-vinyl acetate copolymer10.1016/j.radphyschem.2011.10.021 ↗
19. Synthesis and characterization of MnO 2 nanosheets based multilayer coating and applications as a flame retardant for flexible polyurethane foam10.1016/j.compscitech.2015.12.014 ↗
20. Construction of multifunctional boron nitride nanosheet towards reducing toxic volatiles (CO and HCN) generation and fire hazard of thermoplastic polyurethane10.1016/j.jhazmat.2018.09.009 ↗
21. Thermal and mechanical behaviour of flexible polyurethane foams modified with graphite and phosphorous fillers10.1007/s10853-012-6433-z ↗
22. Synergistic effects of sepiolite on the flame retardant properties and thermal degradation behaviors of polyamide 66/aluminum diethylphosphinate composites10.1016/j.polymdegradstab.2015.03.018 ↗