Abstract The natural halloysite nanotubes were used as the nanocontainer to load Na2MoO4 corrosion inhibitor, and the release rate of Na2MoO4 was further controlled by wrapped with the CaMoO4 end stopper through adding with Ca2+. The variable release rates were fulfilled by the formation of CaMoO4 end stopper with different strength, and the release time can be adjusted from one to dozens of hours. Moreover, the prepared complex corrosion inhibitor is also an acid-responsive smart material, which can quickly release the large amount of corrosion inhibitors under acidic conditions through the decomposition of insoluble CaMoO4 complex on the surface or end of halloysite. In addition, the epoxy coating mixed with 10 wt% Ca2+ treated Na2MoO4 loaded halloysite can provide the highest corrosion resistance and sustained release of the corrosion inhibitor to achieve corrosion healing in the coating defects.

中文翻译：

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一种控制含Ca2+的埃洛石包封Na2MoO4释放速率和Q235钢耐蚀性的新方法

摘要 以天然埃洛石纳米管为纳米容器负载Na2MoO4缓蚀剂，通过添加Ca2+包裹CaMoO4端塞进一步控制Na2MoO4的释放速率。通过形成不同强度的CaMoO4端塞来实现可变的释放速率，释放时间可以从一小时到几十小时不等。此外，所制备的复合缓蚀剂还是一种酸响应智能材料，在酸性条件下，通过分解埃洛石表面或末端不溶性CaMoO4配合物，快速释放大量缓蚀剂。此外，