发动机冷却液常用缓蚀剂的性能及作用

Performance and Function of Commonly-used Corrosion Inhibitors in Engine Coolant

发动机冷却液缓蚀剂具有防腐蚀、防锈蚀的作用,是发动机冷却液中最主要的功能性添加剂。缓蚀剂对金属的保护作用具有一定的选择性,同一种缓蚀剂对某些金属具有良好的保护作用,但是对其他金属可能会有加速腐蚀的风险,因此冷却液一般选用多种缓蚀剂,以复配的方式满足发动机冷却液对冷却系统多种金属提供保护的需要。

The corrosion inhibitors of engine coolant has the functions of corrosion and rust prevention,and it is the most important functional additive in engine coolant.Corrosion inhibitor has a certain selectivity in the effect of protecting metals.A corrosion inhibitor has a good protective effect on certain metals but possibly accelerates corrosion in other metals.Therefore,multiple corrosion inhibitors are generally applied in a compound manner to protect engine coolants in multiple metals in the cooling system.