摘要
在硅溶胶改性水性聚氨酯(WPU)的基础上,添加三聚氰胺氰尿酸盐(MCA)进行阻燃改性,配以防沉降剂、成膜助剂和消泡剂经球磨工艺处理,制得水性聚氨酯防火涂料。测试结果表明:涂料具有良好的抗沉降性,固化时间较短,其固化后的膜层表现出良好的阻燃性、热稳定性、耐水性和附着力。当WPU、硅溶胶、MCA质量比为49∶21∶30时,耐燃时间可达521s,硬度为B,附着力为1级。
A kind of fire-fighting waterborne polyurethane paint was prepared through ball-milling treatment of the mixture, which was on the basis of silica-sol modified waterborne polyu- rethane （WPU）, adding MCA for flame retardancy and paint additives including film coalescing, anti-settling and antifoaming agent. The experimental results showed that the produced paint possessed good resistance of settlement and relatively short cure time, and the cured coating exhibited excellent flame retardant property, thermal stability, water resistance and adhesive force. When the mass ratio of WPU, silica-sol and MCA was 49 ： 21 ：30, the longest fire resistant time of the cured coating reached 521 s, hardness B, adhesion level 1.
出处
《消防科学与技术》
CAS
北大核心
2015年第8期1068-1071,共4页
Fire Science and Technology
