Study on the Combustion and Heat Transfer Process of EP/IFR Epoxy Intumescent Flame Retardant Coatings
The thermal insulation effect of the intumescent flame retardant coating coated on the surface of steel structures is of great significance for steel structure buildings to avoid high temperature disasters.The paper prepared an EP/IFR epoxy intumescent flame retardant coating by adding ammonium polyphosphate(APP),pentaerythritol(PER),tea saponin(TS),and aluminum hydroxide(ATH)to epoxy resin(EP).Based on cone calorimeter combustion experiments and thermogravimetric analysis,the combustion and heat transfer processes of coatings were studied by real-time measurement of temperature changes on the coating surface.The results show that the ATH synergistic effect TS can improve the thermal stability of the coating;When TS is added at 1.33%and ATH is added at 5.33%,the temperature rise rate is the lowest,the flame retardant and thermal insulation effectisthebest,and the peak heat release rate(pHRR)is only 362.52 kW/m2,which is 59.32%lower than pure EP;The thermal radiation power has a significant impact on the heat transfer process.
intumescent fire retardant coatingheat transfer processfire testepoxy resin
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维普
