Peculiarities of destruction mechanism of polymeric intumescent fire protective coatings

    Romualdas Mačiulaitis Affiliation
    ; Mindaugas Grigonis Affiliation
    ; Jurgita Malaiškienė Affiliation
    ; Donatas Lipinskas Affiliation


The article describes the destruction mechanism of intumescent fire protective paint coatings at the time of their aging under the impact of simulated climatic factors. Steel plates covered in anti-corrosion varnishes and intumescent fire protective paint coatings of several types and different composition were used in the research, while certain samples were also additionally covered in protective coatings protecting from environmental effects. SEM, DTA and FT-IR researches were conducted on control samples and samples after aging. Aging was performed in 3 ways: according to regimes I and II in the laboratory and having stored them for 12 months under the outdoor conditions under the roof. The aging mechanism of materials was determined to be very similar when using different methods of aging: with increasing number of cycles, the extent of damage to the surfaces and their diversity increase. In all cases, chemical material changes were observed after artificial aging cycles compared to control samples. In aged samples, there were some new connections occurring, while others changed or disappeared judging from the number of waves and intensity of peaks, which shows that certain compounds form, while others change and disintegrate under the influence of environmental heat and mass exchange.

Keyword : polymeric intumescent coatings, destruction mechanism, steel, fire resistance

How to Cite
Mačiulaitis, R., Grigonis, M., Malaiškienė, J., & Lipinskas, D. (2018). Peculiarities of destruction mechanism of polymeric intumescent fire protective coatings. Journal of Civil Engineering and Management, 24(2), 93-105.
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Mar 20, 2018
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Andersson, A.; Lundmark, S. H. J.; Maurer, F. 2007. Evaluation and characterization of ammoniumpolyphosphate–pentaerythritol-based systems for intumescent coatings, Journal of Applied Polymer Science 104(2): 748–753.

Bilotta, A.; de Silva, D.; Nigro, E. 2016. Tests on intumescent paints fir fire protection of existing steel structures, Construction and Building Materials 121: 410–422.

Bodzay, B.; Bocz, K.; Bárkai, Z.; Marosi, G. 2011. Influence of rheological additives on char formation and fire resistance of intumescent coatings, Polymer Degradation and Stability 96(3): 355–362.

Brunner, S.; Richner, P.; Muller, U.; Guseva, O. 2005. Accelerated weathering device for service life prediction for organic coatings, Polymer Testing 24: 25–31.

Buika, G.; Getautis, V.; Martinaitis, V.; Rutkauskas, K. 2007. Organic compounds spectroscopy. Vitae Litera.

Chemistry Encyclopedia. 2015. Vilnius: Mokslo ir enciklopedijų leidybos centras (in Lithuanian).

Darginavičienė, R.; Drungilienė, D. 2008. Slaugytojų emocinė būsena slaugant mirštančiuosius [Emotional state of nurses in the care of the dying], Sveikatos mokslai [Health Science] 6(4): 2084–2089 (in Lithuanian).

Deflorian, F.; Rossi, S.; Fedel, M. 2008. Organic coatings degradation: Comparison between natural and artificial weathering, Corrosion Science 50: 2360–2366.

Deflorian, F.; Rossi, S.; Fedrizzi, L.; Zanella, C. 2007. Comparison of organic coating accelerated tests and natural weathering considering meteoroligical data, Progress in Organic Coatings 59: 244–250.

Dimanshteyn, F. A.; Barone, R. J. 2006. Intumescent materials. World intellectual property organization. WO 2006/039275 A2.

Duquesne, S.; Magnet, S.; Jama, C.; Delobel, R. 2005. Thermoplastic resins for thin film intumescent coatings towards a better understanding of their effect on intumescence efficiency, Polymer Degradation and Stability 88: 63–69.

EN 1363-1:2012 Fire-resisitance tests. Elements of building construction. Part 1: General requirements. European Standard, 2012.

EN 1363-2:2000 Fire resistance tests – Part 2: Alternative and additional procedures. (Resistance Tests). European Standard, 2000.

EN ISO 11357-1:2010 Plastics. Differential scanning calorimetry (DSC). Part 1: General principles. European Standard, 2010.

EN ISO 11358-1:2014 Plastics. Thermogravimetry (TG) of polymers. Part 1: General principles. European Standard, 2014.

EN ISO 12944-2:2000 Paints and varnishes – Corrosion protection of steel structures by protective paint systems. Part 2: Classification of environments. European Standard, 2000.

EN ISO 2178:2016 Non-magnetic coatings on magnetic substrates. Measurement of coating thickness. Magnetic method. European Standard, 2016.

Fedel, M.; Rosso, S.; Deflorian, F. 2013. Comparison between natural and artificial weathering of e-coated galvanized steel panels, Progress in Organic Coatings 76: 194–203.

Grigonis, M.; Praniauskas, V.; Mačiulaitis, R. 2012. Ageing of fire coatings, International Review of Civil Engineering 3(1): 72–78.

Hairston, G.; Burns, J.; Stidham, W.; Van Voorhis, K. 2006. Intumescent flame retardant compositions. World intellectual property organization. WO 2006/017814 A1.

Hill, J. E. 1993. Intumescent coating and method of manufacture. World intellectual property organization. WO 93/20156.

Jimenez, M.; Duquesne, S.; Bourbigot, S. 2006. Characterization of the performance of an intumescent fire protective coating, Surface Coating Technology 201(3–4): 979–987.

Knunjanc, I. (Ed.). 2000. Large encyclopedic dictionary. Chemistry. Moskow: „Bol'shaya Rossiyskaya entsiklopediya“ (in Russian).

Li, G.; Liang, G.; He, T.; Yang, Q.; Song, X. 2007. Effects of EG and MoSi2 on thermal degradation of intumescent coating, Polymer Degradation and Stability 92: 569–579.

Mačiulaitis, R. 1997. Frost resistance and durability of ceramic facade products: Monograph. Vilnius: Technika (in Russian).

Mačiulaitis, R.; Jefimovas, A.; Zdanevičius, P. 2012. Research of natural wood combustion and charring processes, Journal of Civil Engineering and Management 18(5): 631–641.

Palm, M.; Carlsson, B. 2002. New accelerated weathering tests including acid rain, Journal of Coatings Technology 74: 69–74.

Stankevičius, V. 1997. Humidity and frost resistance of building partitions: Monograph. Kaunas: Technologija (in Lithuanian).

Wang, D.; Liu, Y.; Wang, Y. C.; Artiles, P.; Hull, T. R.; Price, D. 2007. Fire retardancy of a reactively extruded intumescent flame retardant polyethylene system enhanced by metal chelates, Polymer Degradation and Stability 92: 1592–1598.

Wang, L.; Song, W.; Zhang, M.; Zhen, C. 2014. Study and prediction for the fire resistance of acid corroded intumescent coating, Procedia Engineering 84: 524–534.

Zhang, C.; Li, G. Q.; Wang, Y. C. 2014. Probabilistic analysis of steel columns protected by intumescent coatings subjected to natural fires, Structural Safety 50: 16–26.

Zhou, S.; Song, L.; Wang, Z.; Hu, Y.; Xing, W. 2008. Flame retardation and char formation mechanism of intumescent flame retarded polypropylene composites containing melamine phosphate and pentaerythritol phosphate, Polymer Degradation and Stability 93: 1799–1806.

Žukas, A.; Mačiulaitis, R.; Šukys, R. 2007. Statybos produktų panaudojimo gaisrinė sauga [Fire safety of using construction products]. Vilnius: Technika (in Lithuanian).