摘要
配制不同组分含量的氟蛋白泡沫灭火剂(FP),利用浸泡失重、动电位极化曲线和电化学阻抗谱(EIS)等方法研究了FP组分对Q235镀锌钢腐蚀行为的影响。结果表明,FP组分中的水解蛋白、FeSO_(4)、醋酸钴、尿素和乙二醇对Q235镀锌钢具有促进腐蚀的作用,金属表面产生局部腐蚀并存在腐蚀产物;而两种表面活性剂起到缓蚀作用,金属表面光滑平整,腐蚀程度较轻。其中,作为泡沫稳定剂的FeSO_(4)腐蚀作用最为显著,氟碳表面活性剂缓蚀效果最为明显。Q235镀锌钢的Nyquist图均表现为单容抗弧,说明其腐蚀过程主要受电荷转移过程控制。浸泡失重和电化学试验均表明,FP各组分对Q235镀锌钢的腐蚀性由强至弱依次为FeSO_(4)>醋酸钴>水解蛋白>尿素>乙二醇>SDS>OBS。
The effects of a fluoroprotein foam extinguishing agent( FP) with different component contents on the corrosion behavior of Q235 galvanized steel were studied by immersion weight loss,potentiodynamic polarization curve,and electrochemical impedance spectroscopy(EIS).The results showed that the hydrolyzed protein,FeSO_4,cobalt acetate,urea,and ethylene glycol components in the FP component played a role in promoting the corrosion of Q235 galvanized steel.Local corrosion occurred on the metal surface,and corrosion products existed,while the two surfactants played a role in corrosion inhibition.The metal surface remained smooth and flat,and the degree of corrosion was light.Among them,FeSO_(4) had the strongest corrosion effect as a stabilizer,and the fluorocarbon surfactant exhibited the most obvious corrosion inhibition effect.The Nyquist diagram of Q235 galvanized steel showed a single capacitive arc,indicating that its corrosion process was mainly controlled by the charge transfer process.Immersion weight loss and electrochemical experiments revealed that the corrosion strength of each component of the FP followed the order:FeSO_4>cobalt acetate>hydrolyzed protein>urea>ethylene glycol>SDS>OBS.
作者
孙韬
叶良鹏
蒋凯
孔得朋
张佳庆
Sun Tao;Ye Liangpeng;Jiang Kai;Kong Depeng;Zhang Jiaqing(Anhui Province Key Laboratory of Electric Fire and Safety Protection,State Grid Anhui Electric Power Research Institute,Hefei Anhui 230601,China;College of Mechanical and Electronic Engineering,China University of Petroleum,Qingdao Shandong 266580,China)
出处
《消防科学与技术》
北大核心
2025年第2期230-235,249,共7页
Fire Science and Technology
基金
国网安徽省电力有限公司科技项目(521205220001)。
关键词
氟蛋白泡沫灭火剂
Q235镀锌钢
腐蚀研究
电化学
fluoroprotein foam extinguishing agent
Q235 galvanized steel
corrosion research
electrochemical
作者简介
孙韬,国网安徽省电力有限公司电力科学研究院工程师,主要从事电力火灾与安全防护研究与管理,安徽省合肥市经济技术开发区紫云路299号,230601;通信作者:张佳庆,男,国网安徽省电力有限公司电力科学研究院正高级工程师,dkyzjq@163.com。
