一种基于MOFs与BTA的纳米缓蚀胶囊对铜的缓蚀行为研究

Inhibition Behavior of a Nano-corrosion Inhibitor Capsule Prepared from MOFs and BTA for Copper

通过水热法合成了结构立体、具有明显孔道结构的MOF-5。进一步通过负压法将苯并三氮唑负载进MOF-5形成BTA@MOF缓蚀胶囊。采用TEM、SEM、FT-IR、XRD以及电化学测试等手段对BTA@MOF的结构以及缓蚀性能进行表征评价。结果表明:缓蚀剂分子成功负载进MOF-5内部孔道,制备的缓释剂胶囊具有缓慢释放的特性,能够有效抑制铜的腐蚀。

A three-dimensional metal organic frame material(MOF-5) was synthesized by hydrothermal method, and then, the corrosion inhibitor benzotriazole(BTA) molecule was loaded into MOF-5 to form corrosion inhibitor capsules. The structures and corrosion inhibition properties of the prepared BTA@MOF-5 was characterized by means of TEM, SEM, FT-IR, XRD and electrochemical testing techniques. The results show that the prepared MOF-5 can be an ideal candidate as an inhibitor carrier, while the BTA molecules were successfully loaded into MOF-5. Furthermore, the acquired BTA@MOF-5 had the characteristics of slow release for corrosion inhibitor benzotriazole, which could provide corrosion protection for copper.