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Sustained-release system based on BTA@MOF-5 for self-healing coating application

Chengbin Guo,Yubo Lian,Chen Huang,Zhenyu Chen

A novel sustained-release system was designed on the basis of metal–organic framework-5 (MOF-5) as a nanocontainer to load benzotriazole (BTA). Furthermore, the fabricated BTA/MOF-5 (BTA@MOF-5) was doped to the epoxy coating to improve the anticorrosion performance of copper. UV spectrophotometry proved the sustained-release behavior of BTA@MOF-5. Salt spray tests and electrochemical measurements demonstrated the self-healing ability of the composite coating . This novel sustained-release system provides a new strategy for metal protection.