Research on environmentally friendly high-strength and high expansion waterborne cable fireproof coatings
This experiment prepared an environmentally friendly high-strength and high-expansion water-based cable fire retardant coating,and studied the effects of resin types,P-C-N flame retardant system,expandable graphite,reinforced fillers,and smoke suppressants on the flame retardant performance of the expanded carbon layer.The results showed that the organic,inorganic composite resin can increase the residual carbon content of the cable fire retardant coating and enhance the strength of the expanded carbon layer.The saltwater resistance of waterborne cable fire retardant coating can be improved by selecting the high degree of polymerization of poly(Ammonium phosphate),coated poly(Ammonium phosphate),and double Pentaerythritol,which can solve the problem that the flame retardant performance of the coating film decreases after saltwater resistance;P-C-N intumescent flame retardant system is compounded with expanded graphite system,and is equipped with 5％Sb2O3,8％Rutile titanium dioxide,4％Molybdenum trioxide to obtain water-based cable fire retardant coating with high expansion ratio,high carbon layer strength,and excellent smoke suppression performance.
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