Application of cathodic protection method on steel structures using sacrificial anode and sodium polyacrylate-sodium carboxymethyl cellulose (PANa–CMC) hydrogel electrolyte

Jie Xu, Muye Yang, Shengyue Li, Shigenobu Kainuma, Bohai Ji, Shinichi Murayama

研究成果: ジャーナルへの寄稿学術誌査読

3 被引用数 (Scopus)

抄録

An ionically conductive sodium polyacrylate-sodium carboxymethyl cellulose (PANa–CMC) hydrogel electrolyte was developed for the sacrificial anode cathodic protection (SACP) of carbon steel in high-humidity environments. The incorporation of varying ratios of CMC into hydrogel formulation enhanced the water retention capacity, adhesion strength, and electrochemical performance, making it suitable for SACP applications. Particularly, PANa-5% CMC hydrogels demonstrated a current density of approximately 3 μA/cm², inhibited passive corrosion product formation, and sequestered metal ions from anodes, thus minimizing contamination. These findings highlight the substantial potential of PANa–CMC hydrogels as electrolytes, expanding the application of the SACP method to atmospheric environments.

本文言語英語
論文番号e02742
ジャーナルCase Studies in Construction Materials
20
DOI
出版ステータス出版済み - 7月 2024

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(その他)

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