The enhancement of benzotriazole on epoxy functionalized silica sol-gel coating for copper protection

- The influence of benzotriazole (BTA) on epoxy functionalized silica sol-gel (ESol) coating for copper protection was investigated.
- BTA has a strong influence on the wettability properties of ESol coating.
- BTA can enhance the protection performance of ESol coating for copper.
- BTA can improve the adhesion of ESol coating to copper surface.