| 葡萄糖酸钠和苯甲酸钠体系与锌盐、镧盐对Z30铸铁片的缓蚀协同研究 |
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| 引用本文： | 李乃胜,马清林.葡萄糖酸钠和苯甲酸钠体系与锌盐、镧盐对Z30铸铁片的缓蚀协同研究[J].腐蚀科学与防护技术,2012(4):314-318. |
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| 作者姓名： | 李乃胜 马清林 |
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| 作者单位： | 中国文化遗产研究院 |
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| 基金项目： | 国家科技支撑计划课题项目(2006BAK20B03)资助 |
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| 摘 要： | 采用失重法研究了复配葡萄糖酸钠、苯甲酸钠与硫酸锌、硝酸镧可溶性盐在pH值为6.5的3.5%NaCl溶液中对Z30铸铁片的缓蚀效应.结果表明当葡萄糖酸钠、苯甲酸钠的浓度均为250 mg/L,Zn2+浓度分别为2 mmol/L与3 mmol/L时,缓蚀率高达92.5%与95.3%,而加入La3+浓度为0.5 mmol/L时,缓蚀率可达86.7%.
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| 关 键 词： | 铁质文物 协同缓蚀作用 复配 极化曲线 |
Synergistic Inhibition Effect of Sodium Gluconate and Sodium Benzoate with Zn2+ and La3+ on Z30 Cast Iron |
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| LI Naisheng,MA Qinglin.Synergistic Inhibition Effect of Sodium Gluconate and Sodium Benzoate with Zn2+ and La3+ on Z30 Cast Iron[J].Corrosion Science and Protection Technology,2012(4):314-318. |
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| Authors: | LI Naisheng MA Qinglin |
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| Affiliation: | Chinese Academy of Cultural Heritage,Beijing 100029 |
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| Abstract: | The synergistic inhibition effect of sodium gluconate and sodium benzoate with Zn2 +and La3+respectively on cast iron Z30 in 3.5% NaCl solution was studied by means of mass loss method.The results showed that the complex of sodium gluconate and sodium benzoate with additives of Zn2+ and La3 +exhibited good synergistic inhibition effect and the inhibition efficiencies reach 92.5%and 95.3% when the concentration of sodium gluconate and sodium benzoate both was 250 mg/L,while the concentrations of Zn2 + were 2 mmol/L and 3 mmol/L,respectively.On the other hand,an inhibition efficiency of 86.7% was achieved for the complex with 0.5 mmol/L La3+. |
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| Keywords: | metallic cultural relics synergistic inhibition effect complex polarization curve |
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