壳聚糖接枝胍乙酸缓蚀剂的研究  

An Inhibitor of Corrosion Based on Grafting Natural Polymer with Guanidine Acetic Acid

作　　者：曾涵[1] 胡鑫[1] 孙向涛[2] 杜军刚[1] 

机构地区：[1]新疆师范大学生命科学与化学学院,乌鲁木齐830054 [2]新疆大学化学系,乌鲁木齐830000

出　　处：《天然产物研究与开发》2010年第3期383-387,共5页Natural Product Research and Development

摘　　要：本文以1氯-胍乙酸和自制壳聚糖为原料,合成了一种良好的酸洗缓蚀剂-胍乙酸壳聚糖。以失重法研究了其对N80碳钢的缓蚀性能,并以交流阻抗谱研究了其在N80钢表面的吸附行为,得出缓蚀剂分子在N80钢表面吸附满足Langmu ir模式,同时算出了其吸附热。本文还采用色谱-质谱联用仪研究了缓蚀剂在酸中的降解规律,分析了其较长时间维持较高缓蚀作用的机理。A kind of acid inhibitor-Guanidine acetic acid chitosan （GAAC） has been synthesized by 1-chloro guanidine acetate and self-made chitosan. Effect of inhibitor on N80 steel is measured by weight-loss method and its adsorption mode is derived by amplitude circuit spectrum. Experimental results indicate its behavior of adsorption conforms to Langmuir mono-layer mode and its adsorption enthalpy is obtained subsequently. This article also adopts GC-MS to study the disciplinarian of degradation in acid solutions and analyze its mechanism of sustainably long-term inhibitory function.

关 键 词：天然高分子 酸缓蚀剂 长效缓蚀 

分 类 号：R284.1[医药卫生—中药学] O636.1[医药卫生—中医学]