Study on anticorrosive properties of composite coatings based on Ce-MOF@Mxene
Nanomaterials have many new properties that traditional materials lack and incorporating nanomaterials into coatings to form nanocomposite coatings holds great potential for enhacing the corrosion resistance of coatings.In order to improve the anti-corrosion properties of water-based epoxy resin coating,Ce-MOF@MXene nanocomposite was prepared by the in situ growth method.These composite materials were thenincorporated into the water-based epoxy resin coating as a filler to form composite coatings.Scanning electron microscopy(SEM),X-ray diffraction analyzer(XRD)and X-ray photoelectron spectroscopy(XPS)were used to characterize the microstructure,material structure and elemental composition of the composites.Autolab electrochemical workstation and Q-FOG SSP salt spray tank were used to evaluate the anticorrosive properties of the composite coatings.The results show that the Ce-MOF pellets grow uniformly on MXene nanosheets,and the Ce-MOF@MXene nanocomposites are successfully prepared.The addition of composite material shows the improved anticorrosive property compared to single materials.The barrier and filling effects of the composite material can reduce the movement of corrosive medium in the coating,and effectively improve the anticorrosive property of the coating.The coating of 2wt.％Ce-MOF@MXene composite coating has a higher Ecorr value(-0.33 V)and a lower Icorr value(1.28 × 10-8 A/cm2).
万方数据
维普
