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| 聚天冬氨酸在KNO3介质中的缓蚀性研究 | |
| 引用本文： | 陈丽,施冬梅,谷宁,李春梅,霍钟华.聚天冬氨酸在KNO3介质中的缓蚀性研究[J].石油化工腐蚀与防护,2008,25(5):5-7. |
| 作者姓名： | 陈丽 施冬梅 谷宁 李春梅 霍钟华 |
| 作者单位： | 1. 军械工程学院,河北,石家庄,050003 2. 河北师范大学化学学院,河北,石家庄,050016 3. 河北师范大学附属中学,河北,石家庄,050011 |
| 基金项目： | 河北师范大学基金项目(L2004Y05);;河北省自然科学基金项目(B200600031);;河北省教育厅资助项目(20052022) |
| 摘 要： | 采用极化曲线法研究了聚天冬氨酸缓蚀剂在KNO，的量浓度为0．1mol/L的溶液中对碳钢的缓蚀作用。试验结果表明：聚天冬氨酸对碳钢的阴极和阳极极化都有抑制作用，但以抑制阳极为主，是一种混合型缓蚀剂。试验中随着聚天冬氨酸质量浓度的增大，缓蚀效率提高，最佳质量浓度是400mg／L。根据试验结果，初步认为聚天冬氨酸属于吸附膜缓蚀剂。 |
| 关 键 词： | 聚天冬氨酸 缓蚀作用 极化曲线 碳钢 |
Electrochemical Studies on Corrosion Inhibition of Polyaspartic Acid in KNO3 Medium |
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| Chen Li,Shi Dogmei,Gu Ning,Li Chunmei,Huo Zhonghua.Electrochemical Studies on Corrosion Inhibition of Polyaspartic Acid in KNO3 Medium[J].Petrochemical Corrosion and Protection,2008,25(5):5-7. | |
| Authors: | Chen Li Shi Dogmei Gu Ning Li Chunmei Huo Zhonghua |
| Affiliation: | Shijiazhuang;Hebei 050003;Shijiazhuang;Hebei 050016;Shijiazhuang;Hebei 050011 |
| Abstract: | Potentiodynamic polarization measurements were performed on carbon steel in solution of O.1mol/L KNO_3 containing organic corrosion inhibitors named polyaspartic acid(PASP).The resnlts indicated that the PASP inhibit both anode and cathode polarization on carbon steel,which was attributed mainly to the anode.The corrosion inhibition rate increased with increasing concentration of polyaspartic acid.The optimal concentration was 400 mg/L.PASP was proved to an absorption film corrosion inhibitor. |
| Keywords: | polyaspartic acid inhibition efficiency polarization curve carbon steel |
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