期刊
RSC ADVANCES
卷 9, 期 13, 页码 7065-7077出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ra10083g
关键词
-
资金
- National Natural Science Foundation of China [51210001]
The inhibition effects of five organic carboxylate compounds with different alkylene chain lengths on Q235 steel in a simulated carbonation concrete pore solution (pH 11.5) were studied using quantum chemical calculations, electrochemical measurement and surface analysis. The results show that the adsorption capacity of the inhibitors increases with increasing distance between the C?C bond and COO- group. As the alkylene chain length increases, the absolute surface charge value increases and the inhibition effectiveness tends to increase. C11 shows the best inhibition. The carboxylate inhibitors adsorb on a steel surface by forming Fe-OOC-C-x compounds and the C?C bonds could enhance the adsorption process.
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