涂胜,李鹏熙,汤琪,饶晓蓓

• 1:重庆交通大学材料科学与工程学院
• 2:重庆化工职业学院环境与质量检测学院

摘要(Abstract)：

为防止X70钢在强酸环境中的腐蚀行为，开发新的缓蚀剂成为迫切需求。以2-氯甲基吡啶、炔丙醇和溴代十四烷为原料，经炔化、季铵化得缓蚀剂溴化-N-烷基炔醇吡啶(NTHPB)，其结构经核磁共振谱(~1H-NMR、~(13)C-NMR)、质谱(MS)和红外光谱(FTIR)证实。采用失重法、极化曲线法和交流阻抗法评价了NTHPB在5 mol·L~(-1) HCl中对X70钢的缓蚀性能，用扫描电镜、X-衍射仪、紫外光谱和接触角研究了NTHPB在X70钢表面的吸附行为。结果表明，NTHPB对X70钢的缓蚀性能非常优异，5×10~(-5 )mol·L~(-1)的NTHPB在60℃、5 mol·L~(-1) HCl中对X70钢的缓蚀率高达99.54%，且缓蚀率随NTHPB浓度的增加而增加，随温度的升高而降低。NTHPB在X70钢表面的吸附属于物理和化学混合吸附的自发放热过程，遵循Langmuir等温吸附规律。本研究为抗强酸、高性能缓蚀剂的开发设计指明了新的方向。

关键词(KeyWords)： 溴化N-烷基炔醇吡啶;缓蚀剂;X70钢;吸附;缓蚀机理

Abstract:

Keywords:

基金项目(Foundation): 重庆市自然科学基金(cstc2021jcyj-msxmX0242)

作者(Author): 涂胜,李鹏熙,汤琪,饶晓蓓

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