Effect of aluminum hydroxide on the fireproofing properties of ammonium polyphosphate–pentaerythritol-based intumescent coating

Abstract

A fireproof composition based on ammonium polyphosphate and pentaerythritol with a number of functional additives was developed and studied. The additives are able to form a protective char during fire exposure below the thermal decomposition temperature of the polymer composites. The decrease in the char formation temperature of the fire-protective coating provides a molar excess of ammonium polyphosphate with respect to the mole fractions of pentaerythritol and aluminum hydroxide. Introducing the latter in the composition of the flame-retardant coating also contributes to the decrease in the char formation temperature. The fire-protection coating can be used to protect various combustible materials, e.g., wood, laminates, plastics, etc.

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Correspondence to Yu. M. Evtushenko.

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Evtushenko, Y.M., Grigoriev, Y.A., Rudakova, T.A. et al. Effect of aluminum hydroxide on the fireproofing properties of ammonium polyphosphate–pentaerythritol-based intumescent coating. J Coat Technol Res 16, 1389–1398 (2019). https://doi.org/10.1007/s11998-019-00221-6

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Keywords

  • Intumescent coating
  • Ammonium polyphosphate
  • Pentaerythritol
  • Aluminum hydroxide
  • Fire protection
  • Char