水分对胶接接头的影响研究

Effect of moisture on adhesive joints

燃料电池使用氢气、空气、冷却液等介质,需要其具有非常优异的密封性,故在电堆核心零部件中使用胶接技术。但是燃料电池运行工况是高温水环境,对胶接接头有很高的要求,研究水分对胶黏剂及粘接界面的影响具有重要的学术意义和应用价值。文章介绍了水分对胶接接头的影响,描述了水分对粘接界面产生老化的机理,介绍了利用数值模型仿真水分对胶接接头扩散过程的相关研究。

Fuel cells use hydrogen,air,coolant and other media need very excellent sealing,so bonding technology is used in the core components of the stack,but the fuel cell operating conditions are high temperature water environment,which has high requirements for adhesive joints,and it is of great academic significance and application value to study the influence of moisture on adhesives and bonding interfaces.This paper first introduces the influence of moisture on adhesive joints,then describes the mechanism of moisture aging on bonding interfaces,and finally introduces the relevant research on the diffusion process of moisture to adhesive joints using numerical models.