温敏性高分子水凝胶制备及灭火性能研究  

Synthesis of a thermosensitive hydrogel and its fire suppressing performance

作　　者：贾春雷[1,2] 蒋仲安[1] 杨漪[2] 唐凯[2] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]中国人民武装警察部队学院,河北廊坊065000

出　　处：《功能材料》2013年第11期1593-1597,共5页Journal of Functional Materials

基　　金：公安部灭火救援重点实验室开放课题资助项目(2010001)

摘　　要：采用自由共聚的方法合成了一种温敏性水凝胶,分析了不同质量分数凝胶的低临界溶解温度(LCST)和粘度变化,分别采用水、浙江大学胶体灭火剂B和温敏性水凝胶对1A堆垛进行灭火实验,通过辐射热探头和热电偶分别对灭火过程中的辐射热和温度变化进行采集,结果表明在相同的供给强度下,温敏性水凝胶灭火剂的灭火时间最短,消耗的灭火剂用量最少,灭火后所产生的水渍损失最小,而且灭火后火场残留物易于清理,通过对灭火过程中的危险气体进行检测,结果表明没有额外毒害气体产生。A thermosensitive hydrogel were prepared by free radical polymerization methods.The low critical soluble temperatures（LCST） and viscosity of different mass fraction were investigated.Stacking fires of 1A rating were suppressed with water,colloid extinguishing agent B of Zhejiang University and the thermosensitive hydrogel respectively.The radiant heat and the temperature were recorded by several heat probes and thermocouples during extinguishing.The results showed that the fire extinguishing-time of the thermosensitive hydrogel is shortest at the same practical rate of application among the three.Consumption of extinguishing agent is the least.The water-dip damage to the section unfired is less after extinguishing.The extinguishing agent residual was easy to clean.Detecting result of dangerous gas showed no additional toxic gas was detected during fire extinguishing.

关 键 词：温敏性 水凝胶 低临界溶解温度 灭火剂 灭火效率 

分 类 号：TQ569[化学工程—炸药化工]