Intumescent paints are specially formulated reactive coatings designed to swell or expand into thick foamed char upon exposure to heat, protecting the substrates against fire by insulation and providing a protective barrier to heat and mass transfer. The present review describes some recent work related to the development of intumescent fire protective coating that is suitable for the protection of non-flammable substrates, such as structural steel, against fire. The key factors in the intumescent formulations, binders, flame retardants, fillers, modifiers, nano-dimensional additives, and weathering that affect the properties and performance of intumescent coatings are described. An attempt has also been made to describe different fire protection methods and testing characterizations involved in the fire protection of structural steel using intumescent fire-resistant coatings.

Amine‐cured epoxy resins were prepared at 2% by weight phosphorus content using four halogen‐free flame retardants; poly(m‐phenylene methyl phosphonate) (Fyrol PMP); 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide; red phosphorus; and aluminum diethylphosphinate (OP1230). The effect of these additives on the properties of cured epoxy, including glass transition temperature, thermal stability, and fire retardancy (cone calorimetry), were studied and were compared with the conventionally used flame retardant, tetrabromobisphenol‐A (TBBA). All properties are improved for the non‐halogenated materials compared with TBBA. Further, the stoichiometric amounts of Fyrol PMP and TBBA (without an external curing agent) were reacted with epoxy to determine if they could be used as a flame retardant and as a curing agent; Fyrol PMP effectively acts as a flame retardant and as a curing agent. Evolved gas analysis is also discussed through thermogravimetric analysis/Fourier transform infrared spectroscopy. Copyright © 2013 John Wiley & Sons, Ltd.

No abstract

No abstract

No abstract