Effect of a flame­retardant coating on the burning parameters of wood samples

Authors

  • Yuriy Tsapko National University of Life and Environmental Sciences of Ukraine Heroiv Oborony str., 15, Kyiv, Ukraine, 03041 Kyiv National University of Construction and Architecture Povitroflotsky ave., 31, Kyiv, Ukraine, 03037, Ukraine https://orcid.org/0000-0003-0625-0783
  • Аleksii Tsapko National University of Life and Environmental Sciences of Ukraine Heroiv Oborony str., 15, Kyiv, Ukraine, 03041, Ukraine https://orcid.org/0000-0003-2298-068X
  • Olga Bondarenko Kyiv National University of Construction and Architecture Povitroflotsky ave., 31, Kyiv, Ukraine, 03037, Ukraine https://orcid.org/0000-0002-8164-6473

DOI:

https://doi.org/10.15587/1729-4061.2019.163591

Keywords:

protective means, fire resistance, weight loss, surface treatment, wood burnout rate, efficiency of protection

Abstract

The studies of influence of wood fire protection on ignition have established parameters of flame propagation and combustion suppression which makes it possible to influence this process. It was proved that fire protection consists in creation of a layer on the material surface which prevents the material from warming up to its critical temperature. Experimental studies confirmed that the untreated wood specimen ignited under thermal action resulting in its combustion with a burnout rate of 18 g/(m2∙s). With an increase in intensity of combustion of the ignition gas mixture by 25 % and 50 %, rate of the specimen weight loss increased by 1.4 times and 1.8 times, respectively. In the case of wood impregnation, the rate of weight loss was reduced to 4.8 g/(m2∙s) due to decomposition of flame retardants under thermal action with release of non-combustible gases which inhibited material oxidation and formed a coke layer. When treating wood with an inorganic coating, a heat-resistant ceramic film is formed on the wood surface which reduces the burnout rate 3.8 times. But with an increase in intensity of combustion of the igniting gas mixture by 50 %, the wood specimen has ignited which was reflected by increase in the weight loss rate. Application of organic-mineral coatings under thermal action has resulted in formation of a layer of foamed coke, inhibition of heat transfer from high-temperature flame and reduction of burnout rate to 3 g/(m2∙s). This has made it possible to determine conditions of change and inhibition of the combustion parameters for fire protection of wood by creation of a barrier for thermal conductivity. The results of comparison of experimental data on the wood burning rate with the derived analytical equations have shown conformity between them. Thus, there are grounds to assert about the possibility of directed regulation of processes of wood fire protection by using flame retardant coatings capable of forming a protective layer on the material surface that reduces the wood burnout rate

Author Biographies

Yuriy Tsapko, National University of Life and Environmental Sciences of Ukraine Heroiv Oborony str., 15, Kyiv, Ukraine, 03041 Kyiv National University of Construction and Architecture Povitroflotsky ave., 31, Kyiv, Ukraine, 03037

Doctor of Technical Sciences

Scientific-Research Institute for Binders and Materials named after V. D. Glukhovsky

Аleksii Tsapko, National University of Life and Environmental Sciences of Ukraine Heroiv Oborony str., 15, Kyiv, Ukraine, 03041

Posgraduate student

Department of Technology and Design of Wood Products

Olga Bondarenko, Kyiv National University of Construction and Architecture Povitroflotsky ave., 31, Kyiv, Ukraine, 03037

PhD, Associate Professor

Department of Building Materials

References

  1. Tsapko, Y., Tsapko, А. (2017). Establishment of the mechanism and fireproof efficiency of wood treated with an impregnating solution and coatings. Eastern-European Journal of Enterprise Technologies, 3 (10 (87)), 50–55. doi: https://doi.org/10.15587/1729-4061.2017.102393
  2. Tsapko, Y. (2013). Effect of surface treatment of wood on the fire resistance of wooden structures. Eastern-European Journal of Enterprise Technologies, 5 (5 (65)), 11–14. Available at: http://journals.uran.ua/eejet/article/view/18104/15850
  3. Tsapko, Y., Tsapko, А., Bondarenko, O. (2019). Establishment of heat-exchange process regularities at inflammation of reed samples. Eastern-European Journal of Enterprise Technologies, 1 (10 (97)), 36–42. doi: https://doi.org/10.15587/1729-4061.2019.156644
  4. Tsapko, Y., Kyrycyok, V., Tsapko, A., Bondarenko, O., Guzii, S. (2019). Increase of fire resistance of coating wood with adding mineral fillers. MATEC Web of Conferences, 230, 02034. doi: https://doi.org/10.1051/matecconf/201823002034
  5. Krüger, S., Gluth, G. J. G., Watolla, M.-B., Morys, M., Häßler, D., Schartel, B. (2016). Neue Wege: Reaktive Brandschutzbeschichtungen für Extrembedingungen. Bautechnik, 93 (8), 531–542. doi: https://doi.org/10.1002/bate.201600032
  6. Xiao, N., Zheng, X., Song, S., Pu, J. (2014). Effects of Complex Flame Retardant on the Thermal Decomposition of Natural Fiber. BioResources, 9 (3), 4924–4933. doi: https://doi.org/10.15376/biores.9.3.4924-4933
  7. Gaff, M., Kačík, F., Gašparík, M., Todaro, L., Jones, D., Corleto, R. et. al. (2019). The effect of synthetic and natural fire-retardants on burning and chemical characteristics of thermally modified teak (Tectona grandis L. f.) wood. Construction and Building Materials, 200, 551–558. doi: https://doi.org/10.1016/j.conbuildmat.2018.12.106
  8. Zhao, P., Guo, C., Li, L. (2019). Flame retardancy and thermal degradation properties of polypropylene/wood flour composite modified with aluminum hypophosphite/melamine cyanurate. Journal of Thermal Analysis and Calorimetry, 135 (6), 3085–3093. doi: https://doi.org/10.1007/s10973-018-7544-9
  9. Cirpici, B. K., Wang, Y. C., Rogers, B. (2016). Assessment of the thermal conductivity of intumescent coatings in fire. Fire Safety Journal, 81, 74–84. doi: https://doi.org/10.1016/j.firesaf.2016.01.011
  10. Nine, M. J., Tran, D. N. H., Tung, T. T., Kabiri, S., Losic, D. (2017). Graphene-Borate as an Efficient Fire Retardant for Cellulosic Materials with Multiple and Synergetic Modes of Action. ACS Applied Materials & Interfaces, 9 (11), 10160–10168. doi: https://doi.org/10.1021/acsami.7b00572
  11. Carosio, F., Alongi, J. (2016). Ultra-Fast Layer-by-Layer Approach for Depositing Flame Retardant Coatings on Flexible PU Foams within Seconds. ACS Applied Materials & Interfaces, 8 (10), 6315–6319. doi: https://doi.org/10.1021/acsami.6b00598
  12. Md Nasir, K., Ramli Sulong, N. H., Johan, M. R., Afifi, A. M. (2018). An investigation into waterborne intumescent coating with different fillers for steel application. Pigment & Resin Technology, 47 (2), 142–153. doi: https://doi.org/10.1108/prt-09-2016-0089
  13. Erdoǧan, Y. (2016). Production of an insulation material from carpet and boron wastes. Bulletin of the Mineral Research and Exploration, 152, 197–202. doi: https://doi.org/10.19111/bmre.74700
  14. Khalili, P., Tshai, K. Y., Hui, D., Kong, I. (2017). Synergistic of ammonium polyphosphate and alumina trihydrate as fire retardants for natural fiber reinforced epoxy composite. Composites Part B: Engineering, 114, 101–110. doi: https://doi.org/10.1016/j.compositesb.2017.01.049

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Published

2019-04-12

How to Cite

Tsapko, Y., Tsapko А., & Bondarenko, O. (2019). Effect of a flame­retardant coating on the burning parameters of wood samples. Eastern-European Journal of Enterprise Technologies, 2(10 (98), 49–54. https://doi.org/10.15587/1729-4061.2019.163591