温敏性水凝胶制备及灭火性能研究  

Research on preparation and fire extinguishing performance of temperature-sensitive hygrogel

作　　者：邓军[1] 杨漪[1,2] 唐凯[3] 

机构地区：[1]西安科技大学能源学院西部矿井开采与灾害防治教育部重点实验室,陕西西安710054 [2]西安市公安消防支队长安中队,陕西西安710065 [3]中国人民武装警察部队学院科研部,河北廊坊065000

出　　处：《中国矿业大学学报》2014年第1期1-7,共7页Journal of China University of Mining & Technology

基　　金：国家自然科学基金重点项目(51134019);教育部创新团队项目(IRT0856)

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-coSA)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GB 17835—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0.3%,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.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.

关 键 词：水系灭火剂 温敏性 水凝胶 N-异丙基丙烯酰胺 

分 类 号：TQ569[化学工程—炸药化工]