在金属防护工艺中,缓蚀剂的应用可以大致归纳为三个阶段。即从初期的天然植物直接分离缓蚀组分,经过煤焦油及医药加工等副产物的利用,到目前广泛采用的有机化学合成方法制取新型缓蚀剂,前后大约有100多年的历史。随着科学技术不断发展,缓蚀剂的缓蚀 In the metal protection process, the application of corrosion inhibitors can be broadly summarized in three stages. That is, the direct separation of corrosion components from natural plants in the early stage, and the utilization of by-products such as coal tar and pharmaceutical processing to produce a new type of corrosion inhibitor by the currently widely used organic chemical synthesis method, with about 100 years of history. With the continuous development of science and technology, corrosion inhibitor corrosion