主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2025, Vol. 44 ›› Issue (2): 230-235.

• • 上一篇    下一篇

氟蛋白泡沫灭火剂组分对Q235镀锌钢的腐蚀影响研究

孙韬1, 叶良鹏1, 蒋凯2, 孔得朋2, 张佳庆1   

  1. （1.国网安徽省电力有限公司电力科学研究院 电力火灾与安全防护安徽省重点实验室 安徽 合肥 230601； 2.中国石油大学（华东） 机电工程学院，山东 青岛 266580）
  • 收稿日期:2024-03-29 修回日期:2024-06-21 出版日期:2025-02-15 发布日期:2025-02-15
  • 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。
  • 基金资助:
    国网安徽省电力有限公司科技项目（521205220001）

Study on the effect of fluoroprotein foam extinguishing agent components on the corrosion of Q235 galvanized steel

Sun Tao1, Ye Liangpeng1, Jiang Kai2, Kong Depeng2, Zhang Jiaqing1   

  1. (1. Anhui Province Key Laboratory of Electric Fire and Safety Protection, State Grid Anhui Electric Power Research Institute, Anhui Hefei 230601, China;2. College of Mechanical and Electronic Engineering, China University of Petroleum, Shandong Qingdao 266580, China)
  • Received:2024-03-29 Revised:2024-06-21 Online:2025-02-15 Published:2025-02-15

摘要： 通过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、FeSO4、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FeSO4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FeSO4＞醋酸钴＞水解蛋白＞尿素＞乙二醇＞SDS＞OBS。

关键词: 氟蛋白泡沫灭火剂, Q235镀锌钢, 腐蚀研究, 电化学

Abstract: 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, FeSO4, 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, FeSO4 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: FeSO4>cobalt acetate>hydrolyzed protein>urea>ethylene glycol>SDS>OBS.

Key words: fluoroprotein foam extinguishing agent, Q235 galvanized steel, corrosion research, electrochemical