Water-soluble flameproofing agent composition for wood and flameproof treatment method

摘要

The present invention relates to a method for flame retardant treatment of a water-soluble flame retardant composition for wood. The flame retardant composition on the surface of wood treated with an aqueous paint permeates the wood, thereby preventing the spread of flame. The present invention allows the preparation of an environment-friendly flame retardant composition having good carbonization areas, after-flame time and after-glow time and having no harmfulness of bleaching, exfoliation or stains on the color of the aqueous paint, and enables flame-retardant treatment only by spray coating or brush coating without using other aids, at room temperature and atmospheric pressure. The present invention is characterized by preparing a water-soluble flame retardant composition for wood by adding 60 g of ammonium phosphate to 300 g of distilled water (base water) followed by 30 minutes of stirring, adding 40 g of urea followed by 30 minutes of stirring, adding 40 g of phosphoric acid followed by one hour of stirring, and adding 60 g of silicon hydrate followed by one hour of stirring at 50°C or less, wherein the water-soluble flame retardant composition for wood avoids flame-retardant treatment when the temperature is less than 10°C and the humidity is 70% or more; a distance of 40 cm or more is maintained during spray coating; the water-soluble flame retardant composition is coated under a pressure of 80 to 120 kg/cm2, with a throughput of 0.35 kg/m2 at one time, and dried at room temperature for 24 to 28 hours; and flame retardant treatment is performed twice in the same manner.