In this work, effects of the inorganic fillers, clay (10A, 15A and 30A) and zinc borate (ZB, 2ZnO_3B_2O_33.5H_2O) as synergists were used in a novel intumescent coating being consisted of epoxy-amine latex (EP, 50wt%) and trimer intumescent flame retardant system (T-IFR, 50wt%) which is a mixture of the primary caged bicyclic phosphate (trimer). These inorganic fillers on the fire protection performance, decomposition behavior, char chemical constitute of the intumescent coatings were investigated by fire resistant test, cone calorimeter, thermogravimetric analysis (TGA), scanning electron microscope (SEM) and X ray photoelectron spectroscopy (XPS). The results show that ZB of 3~5 wt % could obviously improve fire protection properties of intumescent coatings, decrease the heat release rate and smoke production rate.
展开▼
