摘要
Abstract
To enhance the flame retardant and heat insulation performance of buildings,this paper prepared ammonium polyphosphate modified nano-coatings by mechanical blending method.The effects of flame retardant dosage and coating thickness on the flame retardant performance and mechanical properties of ammonium polyphosphate modified nano-coatings were systematically analyzed.The optimal flame retardant dosage and coating thickness were determined,and the engineering application effects were evaluated.The results show that the optimal dosage of ammonium polyphosphate flame retardant is 20％,and the optimal thickness of the flame retardant coating is 0.4 mm.It is known from practice that all the detection indicators of the ammonium polyphosphate modified nano-coating are within the allowable range of the design.Its flame retardant performance has increased from 23％before treatment to 36％.The tensile strength and flexural strength were increased by 17％and 25％respectively compared with the untreated specimens.In conclusion,the ammonium polyphosphate modified nano-coating has a good application effect and can be promoted and applied in similar building structures.关键词
建筑结构/聚磷酸铵阻燃剂/阻燃隔热性能/工程应用Key words
Building structure/Ammonium polyphosphate flame retardant/Flame retardant and heat insulation performance/Engineering Ap-plication分类
化学化工
