Preparation and Properties of Core-shell Structure Fluorine- modified Acrylic Anticorrosion Coatings

摘要

A core–shell fluorine modified polyacrylate hybrid latex was successfully prepared by seed emulsionpolymerization. The emulsion was characterized by fourier transform infrared spectroscopy andtransmission electron microscopy. After the emulsion was prepared on the surface of stainless steel, thesurface of the coating was observed. The heat resistance of the coating was analyzed bythermogravimetry, and the corrosion process of the coating was studied by electrochemical experiments.The results showed that the crosslinking degree and the heat resistance of the coating has been improved.The corrosion potential was increased from -0.46 V to -0.17 V and the current density was reduced from2.50×10-6 A/cm-2 to 5.54×10-8 A/cm-2 compared with the unmodified coating. The improvement of itsanti-corrosion performance is mainly due to the improvement of the shielding effect and surfacehydrophobicity. Due to its special core-shell structure, the addition of fluoromonomer to achieve thiseffect is only 2.36%.