Fire Proofing Properties of Wood and Filter Paper treated with Cationic Melamine-Formaldehyde Condensation Products : Effect of Inorganic Acids on the Fire Proofing Efficiencies

Abstract

この論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました。The durable fire-retardants based on the colloidal solution of cationic aminotriazinealdehyde resin have been applied to HINOKI sliced veneer and filter paper. The treatment is accomplished by soaking samples through an aqueous solution of these resins, drying and curing at room temperatures. The effect of kind of acids and of varying ratio of fire retardant components in treating solution on the fire proofing efficiencies of HlNOKl sliced veneer and filter paper are discussed. Results are compared with those reported in previous paper and ammonium salts as fire retardant agents for wood, paper, fabrics and other combustible materials. Aminotriazine-aldehyde condensation products combined with strong acids such as phosphoric acid, hydrobromic acid, sulfuric acid and sulfamic acid imparted excellent fire resistance to wood and filter paper. Satisfactory fire proofing properties can be obtained in both HlNOKl sliced veneer and filter paper at resin add-on as low as about 10～15% with a few exceptions. Total amount of resin required becomes lower as the melamine/acid ratio is decreased