In the present work, a novel covalent organic framework/graphene oxide nanocontainer (v-COF/GO) was synthesized via a two-step solvothermal reaction. v-COF/GO displayed a high loading capacity of benzotriazole (BTA, 17.8 wt%). The UV–Vis spectroscopy results prove that the release amount of BTA molecules can reach 90% under alkaline conditions in 15 h, which provide an effective protection for carbon steel. Electrochemical measurement results show that the impedance modulus at low frequency of v-COF/GO@BTA/epoxy coatings was 1.3 orders of magnitude higher than that of the pure epoxy coatings even after 28 days of immersion. Moreover, the novel v-COF/GO based nanocontainer endowed the epoxy coating with efficient self-healing functionality. v-COF/GO@BTA had high impermeable properties as an epoxy filler and endowed the epoxy coating with exceptional passive and active anticorrosion properties. Thus, the service life of the coating was effectively enhanced under severe conditions.

在目前的工作中，通过两步溶剂热反应合成了一种新型共价有机骨架/氧化石墨烯纳米容器（v-COF/GO）。v-COF/GO 显示出苯并三唑（BTA，17.8 wt%）的高负载能力。UV-Vis光谱结果证明，碱性条件下15小时内BTA分子的释放量可达90%，为碳钢提供了有效的保护。电化学测量结果表明，即使浸泡28天，v-COF/GO@BTA/环氧树脂涂层的低频阻抗模量仍比纯环氧树脂涂层高1.3个数量级。此外，新型的基于 v-COF/GO 的纳米容器赋予环氧树脂涂层有效的自修复功能。v-COF/GO@BTA 作为环氧填料具有高抗渗性能，并赋予环氧涂层优异的被动和主动防腐性能。因此，在恶劣条件下有效提高了涂层的使用寿命。