选择氯化铵、硫酸铵、磷酸二氢铵等，通过浸渍的方法处理滤纸，干燥后分别置于不同的湿度中，研究阻燃剂吸湿性与外部环境条件及阻燃剂自身性质的关系。从理论上揭示了阻燃剂吸湿性本质及内在变化规律，得出阻燃剂的吸湿性与该物质形成的水溶液的饱和蒸气压有关；与该物质在水中的溶解度有关；吸湿量大小与该物质处理基材后的增重量有关。 Ammonium chloride, ammonium sulfate, ammonium dihydrogen phosphate, etc. were selected, and the filter paper was treated by impregnation. After drying, the filters were placed in different humidity, and the relationship between the hygroscopicity of the flame retardant and the external environmental conditions and the properties of the flame retardant was investigated. Theoretically, the nature of hygroscopicity of flame retardant and its inherent change law are revealed, and the hygroscopicity of the flame retardant is related to the saturated vapor pressure of the aqueous solution formed by the substance; it is related to the solubility of the substance in water; and the amount of moisture absorption is related to the The weight gain of the material after treating the substrate is relevant.