Zahra Derakhshesh - Islamic Azad University, Saveh Branch, Faculty of Engineering, Chemistry Department, Save, Iran
Bahram Keyvani - Islamic Azad University, Saveh Branch, Faculty of Engineering, Chemistry Department, Save, Iran
Manouchehr Khorasani - Amir-Kabir University of Technology, color & polymer research center, Tehran, Iran

Fire Retardant Coating (FRC) components have been studied and optimized in this work. Main components of FRC include; Polyammoniumphosphate, Pentaeritrol and Melamine. The results of thermal analysis indicate that decomposition of main components occur in the 220 to 790 oC temperature range. Thermal reactions of Penta-eritrol starts at lower temperatures followed by melamine undergoing structural changes around 250 oC. Polyammoniumphosphate show no weight reduction below 290ºC. In addition to the main components there is a specific plasticizer in fire retardant formulation to improve properties of the coal layer. Beyond 500 oC only carbon in the form of coal remains

Fire retardant coatings, coal Foam, intumscent coating, heat transfer