Fireproof heat-insulating flame retardant with water absorption and expansion properties and preparation method thereof

Abstract

A method for preparing a fire-retardant and heat-insulating agent with water absorption and expansion properties, characterized in that it is prepared from the following components: Component A: elastic waterproof emulsion A, carbon source, char-forming catalyst, foaming agent, titanium dioxide, elastic waterproof emulsion B, and appropriate amount of water; Component B: water-retaining agent; wherein, according to the mass ratio, the weight ratio of elastic waterproof emulsion A, carbon source, char-forming catalyst, foaming agent, titanium dioxide, and elastic waterproof emulsion B in component A is (1-1.5):(4-8):(1-3):(1-3):(1-3):(0.4-0.6); the carbon source is pentaerythritol, dipentaerythritol, or tripentaerythritol; the char-forming catalyst is ammonium polyphosphate; the foaming agent is dicyandiamide, ammonium oxalate, urea, or hexamethylenetetramine; wherein, emulsion A is tert-vinyl acetate emulsion or acetylacetonate emulsion; emulsion B is VAE emulsion.