以往,壳聚糖磷酸酯在海水中的缓蚀性能少有研究,为此,在酸性条件下制备了水溶性壳聚糖磷酸酯,采用失重法和电化学测试的方法研究了壳聚糖磷酸酯在海水体系中对Q235碳钢的缓蚀性能.结果表明:壳聚糖磷酸酯在浓度为400 mg/L时缓蚀效率达到最高为73.05%,在较长时间内仍保持较高的缓蚀效率,在常温和高温下都能很好地抑制海水对碳钢的腐蚀,是一种高效的海水缓蚀剂.
Water-soluble phosphonic chitosan was synthesized at acidic condition.The inhibitive properties of the resulting phosphonic chitosan for mild steel in seawater were studied using weight loss test and electrochemical test.Results show that the highest inhibitive efficiency of phosphonic chitosan,which is as much as 73.05%,is obtained at a dosage of 400 mg/L,and the high inhibition efficiency can be retained for a long time.Moreover,the synthesized phosphonic chitosan as an inhibitor is able to inhibit the corrosion of carbon steel in seawater at both ambient and elevated temperatures,showing promising potential as a high-efficiency inhibitor in seawater.
参考文献
| [1] | 程莎,尹衍升,闫林娜,常雪婷.盐酸溶液中羧甲基壳聚糖对碳钢的缓蚀吸附性能研究[J].腐蚀科学与防护技术,2007(01):24-26. |
| [2] | 李言涛,吴茂涛,刘建国,邵丽艳,侯保荣.海水介质中壳聚糖对碳钢的缓蚀性能[J].材料保护,2008(12):21-24. |
| [3] | 李言涛,邵丽艳,吴茂涛,刘建国.海水介质中羧甲基壳聚糖的缓蚀性能研究[J].腐蚀科学与防护技术,2008(06):432-435. |
| [4] | 杨小刚,邵丽艳,周玉波,张树芳,李言涛,侯保荣.海水中羧甲基壳聚糖及其降解产物对低碳钢的缓蚀作用[J].材料保护,2008(06):1-4. |
| [5] | Heras A. .N-methylene phosphonic chitosan: a novel soluble derivative[J].Carbohydrate Polymers: Scientific and Technological Aspects of Industrially Important Polysaccharides,2001(1):1-8. |
| [6] | 张敏,崔俊锋,尹玉姬,姚康德.磷酸化壳聚糖膜的仿生复合修饰[J].高等学校化学学报,2005(03):550-553. |
| [7] | 王晓军;肖锦 .天然高分子接枝吡啶季铵盐缓蚀剂的研究[J].现代化工,1998,4(06):23-26. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%