防煤自燃聚乙烯醇泡沫材料的制备及性能  

Preparation and properties of polyvinyl alcohol oxygen-insulating foam material to prevent coal spontaneous combustion

作　　者：孟献梁[1,2] 张静[2] 刘亚菲[2] 张中彩[2] 吴国光[2] 褚睿智[2] 王志华[2] 

机构地区：[1]中国矿业大学煤矿瓦斯与火灾防治教育部重点实验室,江苏徐州221008 [2]中国矿业大学化工学院,江苏徐州221008

出　　处：《西安科技大学学报》2011年第6期663-667,共5页Journal of Xi’an University of Science and Technology

基　　金：国家自燃科学基金项目(20807056);中央高校基本科研业务费专项资金项目;中国矿业大学煤矿瓦斯与火灾防治教育部重点实验室开放基金项目

摘　　要：为防止煤炭自燃,采用隔氧性能优良的聚乙烯醇(PVA)为基料,添加改性剂、促凝剂和发泡剂制备了PVA隔氧泡沫材料,并对其隔氧性能和稳定性进行了研究。实验得到最优的PVA隔氧泡沫材料配方(wB%)为:94.81%水4、%PVA,1%改性剂A,0.15%促凝剂B和0.04%3#发泡剂;模拟煤炭堆储条件,对聚乙烯醇隔氧泡沫材料的隔氧性能和稳定性进行了40 d测定。结果表明,此PVA隔氧泡沫材料能有效阻隔氧气进入,使箱体中氧气浓度从21%降至5%以下,并且实验前后PVA隔氧泡沫材料状况良好,无破损。In order to develop a new material to prevent the spontaneous combustion of coal, the modifiers, coagulant agents and foaming agents were used to modify the polyvinyl alcohol （PVA） which is an excellent oxygen-insulating material. Then the oxygen-insulating characteristics and the stability of the PVA foam material were investigated. The optimum formulation of foam material （ wt % ） is 94.81% water, 4% PVA, 1% modifier A, 0. 15% coagulant agent B and 0.04% foaming agent. Simulated coal pile storage conditions, terial have been investigated 21% to below 5 %. After 40 before the experiment. the oxygen-insulating characteristics and the stability of the PVA foam mafor 40 days. The oxygen concentration in coal pile could be decreased from days, the PVA foam material remains a good condition, nearly as well as fore the experiment.

关 键 词：煤炭自燃 聚乙烯醇 隔氧泡沫材料 

分 类 号：TD752[矿业工程—矿井通风与安全]