| 迎春花叶提取物在磷酸介质中对钢的缓蚀作用 |
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| 引用本文： | 邓书端,李向红,付惠.迎春花叶提取物在磷酸介质中对钢的缓蚀作用[J].全面腐蚀控制,2011,25(11):42-45. |
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| 作者姓名： | 邓书端 李向红 付惠 |
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| 作者单位： | 1. 西南林业大学材料工程学院,云南昆明,650224
2. 西南林业大学理学院,云南昆明,650224 |
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| 基金项目： | 云南省应用基础研究面上项目(2010ZC094) |
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| 摘 要： | 采用失重法研究了迎春花(Jasminum nudiflorum Lindl.)叶提取物(JNLLE)在H3PO4介质中对冷轧钢缓蚀作用,考察了缓蚀剂浓度(20～200mg/L)、温度(20～50℃)、腐蚀浸泡时间(6～48 h)、酸浓度(1.0～10.0 mol/L)对缓蚀性能的影响.结果表明:JNLLE在1.0 mo...
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| 关 键 词： | 迎春花 提取物 磷酸 钢 缓蚀 吸附 |
Corrosion Inhibition of Jasminum Nudiflorum Lindl. Leaves Extractive on Steel in Phosphoric Acid Media |
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| DENG Shu-duan,LI Xiang-hong,FU Hui.Corrosion Inhibition of Jasminum Nudiflorum Lindl. Leaves Extractive on Steel in Phosphoric Acid Media[J].Total Corrosion Control,2011,25(11):42-45. |
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| Authors: | DENG Shu-duan LI Xiang-hong FU Hui |
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| Affiliation: | DENG Shu-duan1,LI Xiang-hong2,FU Hui2(1,2.Southwest Forestry University,Kunming 650224,China) |
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| Abstract: | The inhibition effect of Jasminum nudiflorum Lindl. leaves extractive （JNLLE） on the corrosion of cold roiled steel （CRS） in H3PO4 media was studied by weight loss method. Effects of inhibitor concentration （20～200mg/L）, temperature （20～50℃）, immersion time （6～48h） and acid concentration （1.0～10.0 mol/L） on inhibition performance were discussed in detail. The results show that the inhibition efficiency of JNLLE for CRS in 1.0 mol/L H3PO4 increases with the inhibitor concentration and temperature. The adsorption of JNLLE on the CRS surface obeys Temkin adsorption isotherm. Inhibition efficiency increases the inhibitor concentration, then decreases, and reaches maximum value for 24h. Inhibition efficiency decreases with acid concentration, and then does not change remarkable when the acid concentration is higher than 6.0 mol/L. |
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| Keywords: | Jasminum nudiflorum Lindl extract phosphoric acid steel inhibition adsorption |
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