严寒区(-40℃)塑性嵌缝密封材料研制及应用  

Preparation and application of plastic caulking sealing material used in severe cold regions at-40℃

作　　者：谢刚 邢珊珊 张均 张志伟 田新伟 姚明[4] 姜志国[4] XIE Gang;XING Shanshan;ZHANG Jun;ZHANG Zhiwei;TIAN Xinwei;YAO Ming;JIANG Zhiguo(PowerChina Beijing Engineering Co.,Ltd.,Beijing 100024,China;High-tech Research Institute,Beijing University of Chemical Technology,Beijing 100029,China;Liaoning Qingyuan Pumped Storage Co.,Ltd.,Fushun 113300,Liaoning,China;College of Material Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]中国电建集团北京勘测设计研究院有限公司,北京100024 [2]北京化工大学高新技术研究院,北京100029 [3]辽宁清原抽水蓄能有限公司,辽宁抚顺315105 [4]北京化工大学材料科学与工程学院,北京100029

出　　处：《水利水电技术（中英文）》2023年第S02期48-53,共6页Water Resources and Hydropower Engineering

基　　金：国网新源股份有限公司科技项目(SGXYKJ-2022-089)。

摘　　要：严寒环境(-40℃)对大坝面板塑性嵌缝密封提出了更高的要求,严寒环境中仍保持其工作性能,对抽水蓄能电站平稳运行至关重要。依托清原抽水蓄能电站,合成了全新有机硅树脂,制备了具有优异耐低温性能的有机硅基塑性嵌缝密封材料。该材料在-40℃时能够保持良好塑性,满足低温拉伸粘结要求。同时,该材料具有宽工作温域(-40℃~+70℃)和耐久性好的特性。在辽宁清原抽水蓄能电站进行了工程验证,为严寒区抽水蓄能电站面板堆石坝接缝止水结构提供了新材料解决方案。The severe cold environment(-40℃)puts forward higher requirements for the panel joint sealing material.Maintaining its working performance in the severe cold environment is crucial for the smooth operation of pumped storage power station.Based on Qingyuan pumped storage power station,a new silicone resin was synthesized and a silicone based plastic caulking sealing material with excellent low temperature resistance was prepared.The material can maintain good plasticity at-40℃and meet the requirement of low-temperature tensile bonding.At the same time,the material exhibits wide operating temperature range(-40℃~+70℃)and good durability.The material was applied at Liaoning Qingyuan Pumped Storage Power Station,which provided a new material solution for joint sealing of CFRD at pumped storage power station in severe cold regions.

关 键 词：抽水蓄能电站 塑性嵌缝 严寒地区 面板接缝 有机硅 密封材料 

分 类 号：TV442[水利工程—水工结构工程]