Research on preparation and fire extinguishing performance of temperature-sensitive hygrogelChinese Full Text
DENG Jun;YANG Yi;TANG Kai;Key Laboratory of Western Mine Exploitation and Hazard Prevention of Ministry of Education,College of Energy Science ＆ Engineering,Xi’an University of Science and Technology;Chang’an Fire Squadron Public Security Fire Detachment of Xi’an;Scientific Research Department,Chinese People’s Armed Police Force Academy;
Abstract: In order to widen the application and enhance the fire extinguishing efficiency of ordinary gel,a temperature-sensitive hydrogel P（NIPA-co-SA）was synthesized by phase separation.The product structure,temperature-sensitivity performance and relevant physical parameters were characterized through Fourier transform infrared spectrometer,surface tensiometer and viscometer.According to national standard GB17835-2008,the solid combustible fire experiment 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 combustible fire.Its fire extinguishing performance is better than that of water and ordinary fire extinguishing agent.
- DOI：
10.13247/j.cnki.jcumt.000002
- Series：
- Subject：
- Classification Code：
TQ569
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