Development and optimization of fire-protective coating composition based on epoxypolymers

Authors

DOI:

https://doi.org/10.15587/2706-5448.2021.237982

Keywords:

intumescent fire retardant coatings, swelling ratio, epoxy polymer, ammonium polyphosphate, aluminum hydroxide, graphite additive

Abstract

The object of research is intumescent fire retardant coatings based on epoxy resins. The research is aimed at the development of mathematical models of the dependence of the swelling rate of intumescent fire retardant coatings on their composition. Considering the complexity of the processes during the formation of a protective carbon layer, it is advisable to select the optimal ratio of the components of an intumescent fire retardant coating experimentally, followed by the construction of mathematical dependences of the swelling ratio on the coating composition. Therefore, experimental studies aimed at developing and optimizing the composition of an intumescent fire retardant coating based on epoxy polymers are an important task. The studies were carried out in accordance with the theory of planning experiments with the construction of an orthogonal compositional plan of the second order. A linear swelling factor was chosen as the response function. Compositions based on the ED-20 epoxy oligomer, cured with polyethylene polyamine and filled with ammonium polyphosphate, aluminum hydroxide, and graphite additive were used for the study. Based on the results of processing the experimental results, a regression equation was obtained and response surfaces were constructed that describe the dependence of the linear swelling coefficient Cs of an intumescent composition based on an epoxy oligomer on the content of ammonium polyphosphate, aluminum hydroxide and graphite additive. A complex relationship is shown between the content of components and the linear swelling coefficient Cs with different ratios of the components. The optimum by the linear swelling coefficient (Cs=68.1) content of the components in the epoxy polymer was determined, amounting to 20 wt. including for ammonium polyphosphate, 15 mass parts including for aluminum hydroxide and 3 mass parts for the graphite additive. However, with such a ratio, the «self-extinguishing» condition is not met (Cs=27 %). Filling the composition with ammonium polyphosphate in an amount of 26.3 mass parts including, aluminum hydroxide 25 mass parts and 3.5 mass parts including graphite additives allows to get an intumescent fire retardant coating with a swelling ratio Cs over 63 and a reduced level of flammability (Ci=31 %)

Author Biographies

Oleksandr Hryhorenko, National University of Civil Defence of Ukraine

PhD, Associate Professor

Department of Fire and Technological Safety of Facilities and Technologies

Yevheniia Zolkina, National University of Civil Defence of Ukraine

Adjunct

References

  1. Andryushchenko, L., Borysenko, V., Kudin, О., Goroneskul, M. (2019). Intumescent fire protective coatings in modern building (review). Problems of Emergency Situations, 1 (29), 121–138.
  2. Alongi, J., Han, Z., Bourbigot, S. (2015). Intumescence: Tradition versus novelty. A comprehensive review. Progress in Polymer Science, 51, 28–73. doi: https://doi.org/10.1016/j.progpolymsci.2015.04.010
  3. Vakhitova, L. N., Taran, N. A., Drizhd, V. L., Prydatko, S. P. (2015). Fire-retardant efficiency of intumescentcoating in the presenceof nanosized compounds under hydrothermal ageing. Odesa National University Herald. Chemistry, 20 (2 (54)), 83–92. doi: https://doi.org/10.18524/2304-0947.2015.2(54).50634
  4. Zybina, O. A. (2015). Teoreticheskie printsipy i tekhnologiya ognezaschitnyh vspuchivayuschihsya materialov. Sankt-Peterburg, 260.
  5. Stoye, D., Freitag, W. (Eds.) (1998). Paints, coatings and solvents. John Wiley & Sons. doi: https://doi.org/10.1002/9783527611867
  6. Silveira, M. R. da, Peres, R. S., Moritz, V. F., Ferreira, C. A. (2019). Intumescent Coatings Based on Tannins for Fire Protection. Materials Research, 22 (2). doi: https://doi.org/10.1590/1980-5373-mr-2018-0433
  7. Trifonova, O. N. (2013). Optimization of fire retardance for metal structures. Pozharovzryvobezopasnost', 22 (1), 58–62. doi: https://doi.org/10.18322/pvb.2018.22.01.58-62
  8. Vinarskiy, M. S., Lur'e, M. V. (1975). Planirovanie eksperimenta v tekhnologicheskih issledovaniyah. Kyiv: Tekhnika, 168.
  9. Hryhorenko, O., Zolkina, Y. (2020). Study of the dependence of the expansion rate of epoxy polymer on the content of ammonium polyphosphate, pentaerythritol and intercalated graphite. Problemy pozharnoy bezopasnosti, 48, 30–36.
  10. Hryhorenko, O. M., Lypovyi, V. O., Pyshniak, A. M. (2016). Studies of influence of flammability and multiplicity swelling epoxy-polymer of contents MAP and alumina trihydrate. Problemy pozharnoy bezopasnosti, 39, 73–77.

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Published

2021-07-31

How to Cite

Hryhorenko, O., & Zolkina, Y. (2021). Development and optimization of fire-protective coating composition based on epoxypolymers. Technology Audit and Production Reserves, 4(3(60), 18–20. https://doi.org/10.15587/2706-5448.2021.237982

Issue

Vol. 4 No. 3(60) (2021): Chemical engineering

Section

Chemical and Technological Systems: Reports on Research Projects

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Copyright (c) 2021 Oleksandr Hryhorenko, Yevheniia Zolkina

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