钢材酸洗时添加缓蚀剂是一种有效、经济的防腐蚀方法,研究缓蚀剂对其作用机理,发展和完善缓蚀剂理论,已成为研究热点.通过失重试验、动电位极化曲线、交流阻抗谱测试及扫描电镜(SEM)方法研究了新型三氮唑化合物1-(4-氟基苯)-3-[4-(1,2,4-三氮唑-1-甲氧基)-苯]-丙烯缓蚀剂(FTPP)在0.5mol/,L H2SO4溶液中对Q235钢的缓蚀作用.结果表明:FTPP对Q235钢的缓蚀效果与自身浓度有关,在0.5mol/L H2SO4中当其达到10-3 mol/,L时,缓蚀率高达92.8%,能同时抑制腐蚀的阴、阳极反应过程,它是一种混合型缓蚀剂;Q235钢的阻抗值随FTPP浓度增加而增大,FTPP在钢表面的吸附符合Langmuir等温式.
参考文献
| [1] | Ashry E S H;Nemr A E;Esawy S A et al.Corrosion inhibitors,Part Ⅱ:Quantum chemical studies on the corrosion inhibitions of steel in acidic medium by some triazole,oxadiazole and thiadiazole derivatives[J].Electrochimica Acta,2006,51:3 957. |
| [2] | Li Y;Zhao P;Liang Q et al.Berberbine as a natural source inhibitor for mild steel in 1 M H2SO4[J].Applied Surface Science,2005,252:1 245. |
| [3] | Zhang SG;Lei W;Xia MZ;Wang FY .QSAR study on N-containing corrosion inhibitors: Quantum chemical approach assisted by topological index[J].Journal of Molecular Structure. Theochem: Applications of Theoretical Chemistry to Organic, Inorganic and Biological Problems,2005(1/3):173-182. |
| [4] | 王佳;曹楚南;陈家坚 等.缓蚀剂阳极脱附现象的研究--Ⅰ.缓蚀剂阳极脱附现象[J].中国腐蚀与防护学报,1995,15(04):241-246. |
| [5] | 王佳;曹楚南 .缓蚀剂阳极脱附现象的研究--Ⅱ.缓蚀剂阳极脱附对电极阻抗的影响[J].中国腐蚀与防护学报,1995,15(04):247-253. |
| [6] | 王佳;曹楚南 .缓蚀剂阳极脱附现象的研究--Ⅲ.缓蚀剂阳极脱附机制[J].中国腐蚀与防护学报,1996,16(01):9-14. |
| [7] | Elayyachy M;Idrissi A E;Hammouti B .New thio-compounds as corrosion inhibitor for steel in 1 M HCI[J].Corrosion Science,2006,48:2 470-2 479. |
| [8] | Yurt A;Ulutas S;Dal H .Electrochemical and theoretical investigation on the corrosion of aluminium in acidic solution containing some Schiff bases[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2006(2):919-925. |
| [9] | Badawy W A;Ismail K M;Fathi A M .Corrosion control of Cu-Ni alloys in neutral chloride solutions by amino acids[J].Electrochimica Acta,2006,51:4 182. |
| [10] | Migahed MA.;Mohamed HM.;Al-Sabagh AM. .Corrosion inhibition of H-11 type carbon steel in 1 M hydrochloric acid solution by N-propyl amino lauryl amide and its ethoxylated derivatives[J].Materials Chemistry and Physics,2003(1):169-175. |
| [11] | Khaled K F;Hackerman N .Investigation of the inhibitive effect of ortho-substituted anilines on corrosion of iron in 1 M HCl solutions[J].Electrachimica Acta,2003,48:2 715-2 723. |
| [12] | Mu G N;Li X M;Liu G H .Synergistic inhibition between tween 60 and NaCl on the corrosion of cold rolled steel in 0.5 M sulfuric acid[J].Corrosion Science,2005,47:1 932-1 952. |
| [13] | Quraishi MA.;Jamal D. .Dianils as new and effective corrosion inhibitors for mild steel in acidic solutions[J].Materials Chemistry and Physics,2003(3):608-613. |
| [14] | Bouklah M;Hammouti B;Lagrene M et al.Thermodynamic properties of 2,5-his (4-methoxyphenyl)-1,3,4-oxadiazole as a corrosion inhibitor for mild steel in normal sulfuric acid medium[J].Corrosion Science,2006,48:2 831-2 842. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%