空心玻璃微珠/石膏涂层对RPUF燃烧性能的影响  

Effect of hollow gass microspheres/gypsum coating on the combustion properties of RPUF

作　　者：黄昊 张红 王宇飞 刘枫 HUANG Hao;ZHANG Hong;WANG Yufei;LIU Feng(Sichuan Institute of Building Research Co.,Ltd.,Chengdu 610081,China;Xiangyang Public Inspection and Testing center,Xiangyang 441000,China)

机构地区：[1]四川省建筑科学研究院有限公司,四川成都610081 [2]襄阳市公共检验检测中心,湖北襄阳441000

出　　处：《四川建材》2022年第12期225-227,共3页Sichuan Building Materials

基　　金：中国工程建设标准化协会课题:抗震支吊架耐火性能试验方法(R-118-2022)。

摘　　要：通过采用建筑石膏为聚氨酯硬泡(RPUF)表面涂层的胶凝材料,通过添加导热系数低的空心玻璃微珠作为充填材料,配制得到不同空心玻璃微珠含量的涂层。该方法主要利用涂层不燃隔热的特性,将大部分热量阻隔在外,从而增强聚氨酯硬泡(RPUF)的阻燃性。通过热重分析仪、极限氧指数(LOI)、锥形量热仪对样品的燃烧性能进行分析,结果表明空心玻璃微珠/石膏涂层能显著提高聚氨酯硬泡(RPUF)的火安全性。By using construction gypsum as a polyurethane rigid foam(RPUF) surface coating of the cementitious material,by adding hollow glass microspheres with low thermal conductivity as the filling material,different hollow glass microspheres content of the coating is prepared.This method mainly uses the non-combustible thermal insulation of the coating to block most of the heat out,thereby enhancing the flame retardancy of polyurethane rigid foam(RPUF).The combustion performance of the samples was analyzed by thermogravimetric analyzer,limiting oxygen index(LOI),and conical calorimeter,and the results showed that the hollow glass microspheres/gypsum coating could significantly improve the fire safety of polyurethane rigid foam(RPUF).

关 键 词：聚氨酯硬泡 空心玻璃微珠 表层阻燃 基体阻燃 复合阻燃体系 

分 类 号：TQ328.3[化学工程—合成树脂塑料工业]