| 聚天冬氨酸及其衍生物的缓蚀性能和生物降解性能 |
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| 引用本文： | 王大勇,陈武,梅平,赖璐.聚天冬氨酸及其衍生物的缓蚀性能和生物降解性能[J].腐蚀与防护,2012(6):470-473. |
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| 作者姓名： | 王大勇 陈武 梅平 赖璐 |
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| 作者单位： | 长江大学化学与环境工程学院 |
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| 基金项目： | 湖北省高等学校优秀中青年科技创新团队项目(T201003);长江大学研究项目(JY2010021) |
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| 摘 要： | 在聚琥珀酰亚胺的基础上分别合成了含单羟基、双羟基、羧基、磺酸基四种基团的聚天冬氨酸(PASP)衍生物,采用静态失重法和电化学腐蚀法对其缓蚀性能进行了研究。试验结果表明,这几种聚天冬氨酸衍生物都是以抑制阳极为主的缓蚀剂,其中接枝双羟基的衍生物(DHPAP)的缓蚀效果最好,当加药量为100mg.L-1时缓蚀率达到92.8%,比聚天冬氨酸提高了50%以上。PASP、PASP-ASP(含羧基)在20天内的生物降解率在60%以上,具有优良的生物降解性,而PASP-SEA(含磺酸基)、HPAP(含单羟基)、DHPAP(含双羟基)属于可生物降解物质。
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| 关 键 词： | 缓蚀剂 聚天冬氨酸 衍生物 缓蚀性能 生物降解 |
Performance of Polyaspartic Acid and its Derivatives |
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| WANG Da-yong,CHEN Wu,MEI Ping,LAI Lu.Performance of Polyaspartic Acid and its Derivatives[J].Corrosion & Protection,2012(6):470-473. |
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| Authors: | WANG Da-yong CHEN Wu MEI Ping LAI Lu |
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| Affiliation: | (College of Chemical and Environmental Engineering,Yangtze University,Jingzhou 434023,Hubei,China) |
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| Abstract: | On the basis of polysuccinimide,four kinds of polyaspartic acid(PASP) derivatives respectively containing functional groups of single and double hydroxyl,carboxyl,sulfonic were synthesized.The methods of static weight-loss and electrochemical corrosion were employed to study the corrosion performance.The results show that those polyaspartic acid derivatives are anodic inhibitors,and grafted di-hydroxyl derivative has the best effect of corrosion inhibition,and the ratio of corrosion inhibition reached 92.8 % when the dosage was 100 mg·L-1,increased 50% more than polyaspartic acid.The order of inhibition efficiency to A3 steel of these five kinds of polyaspartic acid and its derivatives is PASP
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| Keywords: | corrosion inhibitor polyaspartic acid derivative corrosion inhibition performance biodegradation |
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