| 棉竹竹叶提取物在HCl中对钢和铝的缓蚀作用 |
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| 引用本文： | 李向红,付惠,邓书端.棉竹竹叶提取物在HCl中对钢和铝的缓蚀作用[J].云南化工,2010,37(1):28-31. |
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| 作者姓名： | 李向红 付惠 邓书端 |
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| 作者单位： | 1. 西南林学院,基础部,云南,昆明,650224
2. 西南林学院,木质科学与装饰工程学院,云南,昆明,650224 |
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| 基金项目： | 西南林学院面上科研基金项目，西南林学院林产化工加工工程校级重点学科建设项目 |
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| 摘 要： | 采用失重法和动电位极化曲线首次研究了棉竹竹叶提取物在1.0 mol/LHCl溶液中对冷轧钢和工业纯铝的缓蚀作用。结果表明：棉竹竹叶提取物对冷轧钢具有非常好的缓蚀作用,最大缓蚀率达95%,且在钢表面的吸附符合Langmuir吸附等温式;对铝具有中等程度的缓蚀作用,最大缓蚀率仅为55%,在铝表面的吸附也服从Langmuir吸附模型。极化曲线表明竹叶缓蚀剂为混合抑制型缓蚀剂。
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| 关 键 词： | 棉竹 竹叶提取物 盐酸 缓蚀 钢 铝 吸附 |
Corrosion Inhibition of the Bambusa Subaequalis Leave Extract for Steel and Aluminum in HCl Solution |
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| LI Xiang-hong,FU Hui,DENG Shu-duan.Corrosion Inhibition of the Bambusa Subaequalis Leave Extract for Steel and Aluminum in HCl Solution[J].Yunnan Chemical Technology,2010,37(1):28-31. |
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| Authors: | LI Xiang-hong FU Hui DENG Shu-duan |
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| Affiliation: | 1.Department of Fundamental Courses,Southwest Forestry University,Kunming 650224,China;2.Department of Wood Science and Decoration Engineering,Southwest Forestry University,Kunming 650224,China) |
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| Abstract: | The extract from Bambusa subaequalis leaves was investigated as an excellent environmentally-friendly plant inhibitor.The inhibition effect of the plant extract on the corrosion of cold rolled steel（CRS） and industrial pure aluminum in 1.0 mol/L HCl has been studied by weight loss and potentiodynamic polarization methods.The results show that the Bambusa subaequalis leaves extract is a good inhibitor in 1.0 mol/L HCl solution for CRS.The maximum inhibition efficiency is up to 95%,and the adsorption of the plant inhibitor on the CRS surface follows the Langmuir adsorption isotherm equation.For aluminum,the plant inhibitor has a moderate inhibitive performance,and the maximum inhibition efficiency is only 55%.The adsorption of the plant inhibitor on the aluminum surface is also found to obey the Langmuir adsorption isotherm equation.Polarization curves show that the plant inhibitor behaves as a mixed-type inhibitor. |
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| Keywords: | Bambusa subaequalis extract hydrochloric acid inhibition steel Aluminum Adsorption |
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