| 竹叶提取液的制备及其缓蚀性能 |
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| 引用本文： | 郑兴文,龚敏,邹振,魏巍,黄文恒.竹叶提取液的制备及其缓蚀性能[J].材料保护,2010,43(2). |
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| 作者姓名： | 郑兴文 龚敏 邹振 魏巍 黄文恒 |
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| 作者单位： | 四川理工学院化学系,四川,自贡,643000;四川理工学院材料与化学工程系,四川,自贡,643000 |
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| 基金项目： | 四川理工学院材料腐蚀与防护四川省高校重点实验室项目 |
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| 摘 要： | 植物提取液低毒,低残留,易后处理,用作缓蚀剂时环保性好.为此,用15%H_2SO_4浸泡竹叶,以其提取液配制成缓蚀剂.采用电化学测试、失重和腐蚀浸泡试验研究了竹叶不同浸泡时间、竹叶提取液浓度对Q235钢缓蚀性能的影响.结果表明:将适量竹叶用15%的硫酸浸泡306 min配制成的0.1 g/mL溶液,缓蚀效率达96%以上,是一种阳极型缓蚀剂;电化学研究表明,竹叶提取液为混合型缓蚀剂,作用机理为几何覆盖效应;失重结果表明,竹叶提取液的缓蚀效率随其浓度的增加而增大,在硫酸介质中在Q235碳钢表面的吸附符合El-Awady动力学模型与Flory-Huggins吸附等温方程.
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| 关 键 词： | 缓蚀剂 竹叶提取液 硫酸 Q235钢 缓蚀性能 吸附动力学 |
Preparation and Inhibitive Performance of Extracted Fluid of Bamboo Leaves |
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| ZHENG Xing-wen a,GONG Min b,ZOU Zhen b,WEI Wei b,HUANG Wen-heng b.Preparation and Inhibitive Performance of Extracted Fluid of Bamboo Leaves[J].Journal of Materials Protection,2010,43(2). |
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| Authors: | ZHENG Xing-wen a GONG Min b ZOU Zhen b WEI Wei b HUANG Wen-heng b |
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| Affiliation: | ZHENG Xing-wen a,GONG Min b,ZOU Zhen b,WEI Wei b,HUANG Wen-heng b(a.Department of Ghemistry,b.Departmentof Material , Chemical Engineering,Sichuan Institute of Tech-nology,Zigong 643000,China) |
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| Abstract: | Bamboo leaves were soaked in 15% (mass frac-tion) H2SO4,and the resulting extracted fluid was formulated asinhibitive solution for 0235 carbon steel.The effects of the soa-king time and concentration of extracted fluid of bamboo leaves onthe corrosion behavior of 0235 steel in sulfuric acid were investi-gated by using electrochemical test,weight-loss test and immer-sion corrosion test.Results show that the inhibitive solution witha concentration of 0.1 g/mL,diluted from the extracted fluid of acertain amoun... |
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| Keywords: | inhibitor extracted fluid of bamboo leaves H_2SO_4 Q235 steel inhibitive performance adsorption dynamics |
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