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Journal of Materials Science

, Volume 51, Issue 23, pp 10361–10374 | Cite as

Graphene oxide-filled multilayer coating to improve flame-retardant and smoke suppression properties of flexible polyurethane foam

  • Xiaotao Zhang
  • Qi Shen
  • Xiaoyan Zhang
  • Haifeng Pan
  • Yushi Lu
Original Paper

Abstract

To reduce the flammability of flexible polyurethane (FPU) foams, the graphene oxide (GO) nanosheet filled coatings were deposited on the surface of the FPU foam via layer-by-layer (LbL) assembly method. This consisted of the preparation of the GO using the modified Hummers’ method. The coated FPU foams were then prepared by alternatively submerging the foam into a chitosan solution (0.5 %), a GO suspension (0.1 %), and an alginate solution (0.3 %) until the desired number of trilayers was deposited on the surface of the FPU foam. Scanning electron microscopic images showed that GO-filled coating was evenly distributed on the surface of substrate. Thermogravimetric analysis of the coated FPU foams suggested that the high mass of char residue can be obtained. The cone calorimeter test results of the coated FPU foams showed a reduction in the peak heat release rate (PHRR), peak smoke production rate (SPR), total smoke release (TSR), and peak carbon monoxide (CO) production can be obtained in comparison to the control. In particular, the sample assembled with 10 trilayers had a 8.31 wt % coating mass, which lead to a significant reduction in the peak HRR (59.9 %), peak SPR (45.6 %), TSR (30.5 %), and peak CO production (54.0 %). Such a significant improvement in flame retardancy suggested that the GO nanosheet is a good candidate as a flame-retardant LbL coating to reduce the flammability of FPU foam.

Keywords

Graphene Oxide Layered Double Hydroxide Expandable Graphite Cone Calorimeter Char Residue 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The work was financially supported by the Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) (CUG160608), National Basic Research Program of China (973 Program) (2012CB719701), National Natural Science Foundation of China (51276054), and National Natural Science Foundation of China (51303165).

Supplementary material

10853_2016_247_MOESM1_ESM.avi (4.2 mb)
Video 1 (FPU0) (AVI 4292 kb)
10853_2016_247_MOESM2_ESM.avi (7 mb)
Video 2 (FPU1) (AVI 7189 kb)
10853_2016_247_MOESM3_ESM.avi (4.9 mb)
Video 3 (FPU2) (AVI 5052 kb)
10853_2016_247_MOESM4_ESM.avi (4.1 mb)
Video 4 (FPU3) (AVI 4180 kb)

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Faculty of EngineeringChina University of GeosciencesWuhanPeople’s Republic of China
  2. 2.State Key Laboratory of Fire ScienceUniversity of Science and Technology of ChinaHefeiPeople’s Republic of China

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