Water-based flame-retardant coating adhesive and preparation method thereof

The invention discloses a water-based flame-retardant coating adhesive and a preparation method thereof. The conventional flame-retardant coating adhesive adopts a gas-phase fire retardant as a main component, and fabrics cannot reach the BS-5852:2006 flame retardant test standard after being subjected to coating finishing by the conventional flame-retardant coating adhesive. The water-based flame-retardant coating adhesive comprises the following components in part by weight: 100 parts of waterborne base emulsion consisting of 30-60 parts of waterborne polyurethane emulsion and 40-70 parts of waterborne polyacrylate emulsion, 30-60 parts of a brominated flame retardant, 10-40 parts of polyhydroxylated compound, 5-10 parts of a phosphorus flame retardant, 5-20 parts of a flame retardant synergist, 5-10 parts of a thickening agent, 0.5 part of waterborne blocked isocyanate, and 0.3-0.5 part of a feeling agent. When the water-based flame-retardant coating adhesive performs coating finishing on fabrics, a continuous compact carbon layer is formed on the surface of the fabrics after flame occurs, so that the flame is effectively isolated, and the fabrics can reach the BS-5852:2006 flame retardant test standard.