In this paper, polyaniline (PANI) material was prepared by in-situ polymerization and mixed with zeolitic imidazolate frameworks (ZIF-8) to prepare PANI/ZIF-8 by surface modification. The light cured epoxy resin (RJ313) was modified by PANI/ZIF-8, and the PANI/ZIF-8/RJ313 anticorrosive coating was prepared. The chemical cross-linking of ZIF-8 with the epoxy resin can improve the cross-linking density and barrier property of the epoxy coating, thus improving the corrosion resistance of the coating. The encapsulation of PANI in ZIF-8 not only maintains the corrosion resistance of PANI, but also strengthens the dispersion of PANI under the action of ZIF-8 and improves the mechanical strength of the coating. A series of tests, such as the polarization test and electrochemical impedance test, proved that PANI/ZIF-8/RJ313 coating strongly affects 304SS acid corrosion resistance compared with RJ313, ZIF-8/RJ313 and PANI/RJ313. In 0.5 mol L sulfuric acid solution, the corrosion current of this coating attached to 304SS was as low as 0.0308 μA·cm, and the impedance value can reach 37971.00 Ω·cm. This provides a new idea for improving the dispersibility and corrosion resistance of other anti-corrosion materials.

中文翻译：

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以聚苯胺为核心的咪唑沸石骨架材料（ZIF-8）改性光固化环氧树脂的金属防腐性能

本文采用原位聚合法制备聚苯胺（PANI）材料，并与沸石咪唑酯骨架材料（ZIF-8）混合，通过表面改性制备PANI/ZIF-8。采用PANI/ZIF-8对光固化环氧树脂(RJ313)进行改性，制备PANI/ZIF-8/RJ313防腐涂料。 ZIF-8与环氧树脂的化学交联可以提高环氧涂层的交联密度和阻隔性能，从而提高涂层的耐腐蚀性能。将PANI包封在ZIF-8中不仅保持了PANI的耐腐蚀性能，而且在ZIF-8的作用下加强了PANI的分散性，提高了涂层的机械强度。极化测试和电化学阻抗测试等一系列测试证明，与RJ313、ZIF-8/RJ313和PANI/RJ313相比，PANI/ZIF-8/RJ313涂层对304SS的耐酸性腐蚀性能有很强的影响。在0.5 mol·L硫酸溶液中，该涂层附着在304SS上的腐蚀电流低至0.0308 μA·cm，阻抗值可达37971.00 Ω·cm。这为提高其他防腐材料的分散性和耐腐蚀性能提供了新的思路。