| GAO Jin-long,LI Wen-ya,WANG Kui-tao,ZHANG Cong-jing,ZHANG Bing-zhu.The Corrosion Inhibition Effect of Fatty Alcohol Ethoxylates and Its Complexd Inhibitors in the Chlorine Dioxide Media for Q235 Steel[J],(6):33-36 |
| The Corrosion Inhibition Effect of Fatty Alcohol Ethoxylates and Its Complexd Inhibitors in the Chlorine Dioxide Media for Q235 Steel |
| Received:August 08, 2012 Revised:December 20, 2012 |
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| DOI： |
| KeyWord:chlorine dioxide Q235 steel peregal O-20 sodium benzoate inhibitor synergistic effect |
| Author | Institution |
| GAO Jin-long |
Key Laboratory of Medicinal Moleculer Chemistry in Hebei Province, Shijiazhuang , China |
| LI Wen-ya |
Key Laboratory of Medicinal Moleculer Chemistry in Hebei Province, Shijiazhuang , China |
| WANG Kui-tao |
Key Laboratory of Medicinal Moleculer Chemistry in Hebei Province, Shijiazhuang , China |
| ZHANG Cong-jing |
Key Laboratory of Medicinal Moleculer Chemistry in Hebei Province, Shijiazhuang , China |
| ZHANG Bing-zhu |
Key Laboratory of Medicinal Moleculer Chemistry in Hebei Province, Shijiazhuang , China |
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| Abstract: |
| The static weight loss method, potentiodynamic polarization and observing microscopic appearance were used to study the synergistic effect of fatty alcohol ethoxylates (peregal O-20) and complexd inhibitors on corrosion inhibition of Q235 steel in the chlorine dioxide media of 100 mg/ L. The results show that peregal O-20 has a corrosion inhibiting effect for Q235 steel,but the amount of corrosion inhibitor is large when used alone; Composite peregal O-20 with sodium nitrate or sodium molybdate or sodium benzoate can produce synergistic inhibition effect on Q235 steel,when composite with sodium benzoate can produce the most obvious synergistic inhibition effect; When the concentration ratio of sodium benzoate and peregal O-20 is 6 : 4 and the total dosage of 300 mg/ L,the maximum inhibition efficiency can achieve 92. 55% . |
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