摘要
为提高聚丙烯酰胺类透明凝胶材料的耐候性能,分别将丙烯酰胺与聚乙二醇2000、丙烯酸、甲基丙烯酸3种聚合物复配,构建聚合物互穿网络体系,然后与交联剂、阻燃剂和引发剂等共混制备透明防火凝胶并应用于灌浆型防火玻璃。研究结果表明:聚合物互穿网络结构能增强透明防火凝胶的热稳定性、耐火性和耐候性,但略微降低了凝胶体系透光率;3种聚合物互穿网络体系透明防火凝胶的综合性能排序为:聚丙烯酰胺-聚乙二醇2000体系>聚丙烯酰胺-甲基丙烯酸共聚物>聚丙烯酰胺-丙烯酸共聚物;相比于聚丙烯酰胺凝胶防火玻璃,聚丙烯酰胺-聚乙二醇2000互穿网络凝胶防火玻璃经50 kW/m^(2)辐射功率加热3600 s后,背面平衡温度降低约39.0%。研究结果拟为高性能阻燃透明防火玻璃的制备和应用提供理论参考和技术借鉴。
In order to improve the anti-aging properties of polyacrylamide transparent hydrogel materials,the acrylamide was compounded with PEG2000,acrylic acid and methacrylic acid respectively to construct the interpenetrating polymer network system,and then blended with the crosslinker,flame retardant and initiator to prepare the transparent fireproof hydrogels,which was applied to the grouting fireproof glass.The results showed that the formation of interpenetrating polymer network structure could enhance the thermal stability,fire resistance and anti-aging properties of transparent fireproof hydrogels,but the light transmittance of the hydrogel system reduced slightly.The ranking of the comprehensive performance of three kinds of interpenetrating polymer network system transparent fireproof hydrogel was:polyacrylamide-PEG2000 system>polyacrylamide-methacrylic acid copolymer>polyacrylamide-acrylic acid copolymer.Compared with polyacrylamide hydrogel fireproof glass,the backside temperature of polyacrylamide-PEG2000 interpenetrating network hydrogel fireproof glass decreased by 39.0%after heating for 3600 s at a heat flux of 50 kW/m^(2).The results can provide theoretical and technical support for the preparation and application of high-performance flame retardant transparent fireproof glass.
作者
易亮
周龙夏娣
颜龙
蔡萌涛
徐志胜
YI Liang;ZHOU Longxiadi;YAN Long;CAI Mengtao;XU Zhisheng(Institute of Disaster Prevention Science and Safety Technology,Central South University,Changsha Hunan 410075,China)
出处
《中国安全生产科学技术》
CAS
CSCD
北大核心
2023年第3期53-58,共6页
Journal of Safety Science and Technology
基金
国家自然科学基金项目(52276143)
湖南省重点研发计划项目(2021SK2054)。
关键词
聚丙烯酰胺
互穿网络
防火玻璃
耐火性能
耐候性能
polyacrylamide
interpenetrating network
fireproof glass
fire resistance
anti-aging property
作者简介
易亮,博士,教授,主要研究方向为火灾科学与消防工程等;通信作者:颜龙,博士,副教授,主要研究方向为防火阻燃材料。
