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中文摘要：
为了扩展胶体灭火剂应用范围，进一步提高灭火效率，采用相分离法合成了P（NIPA—CO-SA）温敏性高分子水凝胶．采用FT—IR傅里叶红外光谱、表面张力仪和黏度仪表征了产物结构、温敏性能及相关物理参数．根据GB17835--2008搭建了A类灭火实验台，并对比研究了水、普通胶体和温敏性水凝胶的灭火效果．结果表明：合成产物为目标产物P（NIPA-co-SA）；环境温度超过临界相转变温度后，水凝胶发生体积相转变而凝胶化，表面张力低、黏度大；作为温度敏感性泡沫液最佳使用质量分数为0．39／6，能够有效扑救A类固体火灾，灭火效果优于水及普通胶体灭火剂．
英文摘要：
In order to widen the application and enhance the fire extinguishing efficiency nary gel, a temperature-sensitive hydrogel P（NIPA-co-SA） was synthesized by phase of ordi- separa- tion. The product structure, temperature-sensitivity performance and relevant physical param- eters were characterized through Fourier transform infrared spectrometer, surface tensiometer and viscometer. According to national standard GB17835-2008, the solid combustible fire ex- periment rig was established, and the fire extinguishing performance of water, ordinary gel and temperature-sensitive hydrogel were comparatively studied. The results show that： synthesized product is target product P（NIPA-co-SA）. Because of volume phase transition （VPT） hydrogel became gelled when temperature is above lower critical solution temperature （LCST）, and the surface tension was low and viscosity was high. 0. 3% is the recommended concentration for temperature-sensitive firefighting foam preparation, which can effectively quench solid combus- tible fire. Its fire extinguishing performance is better than that of water and ordinary fire extin- guishing agent.
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