Flame-retardant coated EPS phenolic resin adhesive and preparation method thereof

The invention relates to the technical field of materials. The invention further discloses a flame-retardant coated EPS phenolic resin adhesive comprising a phenolic resin adhesive; the phenolic resinadhesive is mainly composed of the following raw materials in parts by weight: 20 to 60 parts of phenol, 30 to 80 parts of formaldehyde, 1 to 15 parts of a basic catalyst, 1 to 15 parts of urea, 0.2to 10 parts of a coupling agent, 0 to 30 parts of water, 1 to 20 parts of alcohols, 0.5 to 20 parts of acids and 0.5 to 20 parts of salts. Raw materials of the basic catalyst can be sodium hydroxide,potassium hydroxide, calcium hydroxide, barium hydroxide, zinc oxide, organic amine and the like, the alcohols can be methanol, ethanol, isopropanol, ethylene glycol, glycerol, polyethylene glycol, epoxypropane condensates and the like, and the acids can be formic acid, acetic acid, p-toluenesulfonic acid, phenolic sulfonic acid, sulfurous acid, sulfuric acid, hydrochloric acid and the like. The flame-retardant coated EPS p