含巯基杂环化合物在酸性蚀刻液中的缓蚀性能研究  

Exploration of corrosion inhibiting capabilities of heterocyclic compounds containing mercaptogroups in acidic etching solutions

作　　者：杜永杰 丘梓炜 王红平 王跃川[2] 肖龙辉 崔红兵 王小丽 陈苑明 Du Yongjie;Qiu Ziwei;Wang Hongping;Wang Yuechuan;Xiao Longhui;Cui Hongbing;Wang Xiaoli;Chen Yuanming(Zhuhai Dynamic Technology Optical Industry Co.,Ltd,Zhuhai 519055,China;College of Polymer Science and Engineering,Sichuan University,Chengdu 610065,China;School of Materials and Energy,University of Electronic Science and Technology of China,Chengdu 610054,China;Dongguan Hong Yuen Electronics Co.,Ltd,Dongguan 523932,China)

机构地区：[1]珠海市能动科技光学产业有限公司,广东珠海519055 [2]四川大学高分子科学与工程学院,四川成都610065 [3]电子科技大学材料与能源学院,四川成都610054 [4]东莞康源电子有限公司,广东东莞523932

出　　处：《电镀与精饰》2025年第3期53-59,共7页Plating & Finishing

基　　金：珠海市产学研合作项目(2220004002678);东莞市重点领域研发项目(20231200300172)。

摘　　要：缓蚀剂是一种能够在腐蚀介质中有效抑制金属表面腐蚀的一种化学物质或多种物质的混合物。在印制电路板线路蚀刻工艺中,含有缓蚀剂的酸性蚀刻液能抑制线路的侧向蚀刻,而不改变对线路的纵向蚀刻速率。巯基苯并咪唑类化合物是一类具有抗氧化活性的杂环化合物,对金属表面腐蚀具有良好的抑制效果。探究含有巯基及取代基不同位置的苯并咪唑:2-巯基-5-甲基苯并咪唑和5-甲氧基-2-巯基苯并咪唑作为缓蚀剂,通过量子化学计算和分子动力学模拟研究这两种缓蚀剂可能的吸附位点;结合电化学极化曲线和阻抗谱对比分析两种缓蚀剂对于铜腐蚀的抑制效果和缓蚀机理。该研究将为后续关于含有巯基类的缓蚀剂的筛选和机理分析提供参考。The corrosion inhibitor is a chemical substance or a mixture of substances capable of effectively inhibiting corrosion on metal surfaces in corrosive media.In the circuit etching process of printed circuit board(PCB)production,acidic etching solutions containing inhibitors can suppress lateral etching of the circuits without altering the longitudinal etching rate.Mercaptobenzimidazole compounds are a class of heterocyclic compounds with antioxidant activity that exhibit excellent corrosion inhibition effects on metal surfaces.This paper aims to investigate benzimidazole compounds containing mercapto groups and substituents at different positions,specifically 2-mercapto-5-methylbenzimidazole and 5-methoxy-2-mercaptobenzimidazole,as inhibitors.Quantum chemical calculations and molecular dynamics simulations are employed to study the possible adsorption sites of these two inhibitors.Combined with electrochemical polarization curves and impedance spectroscopy,a comparative analysis is conducted to evaluate the corrosion inhibition effects and mechanisms of these two inhibitors on copper corrosion.This research provides a reference for subsequent screening and mechanism analysis of inhibitors containing mercapto groups.

关 键 词：蚀刻液 缓蚀剂 含巯基苯并咪唑类化合物 蚀刻因子 

分 类 号：TQ153.1[化学工程—电化学工业]