稀土铈改性石墨烯/水性环氧树脂复合涂料涂装技术研究

陈施润, 陈文革, 钱颖, 张辉

Preparation and Perfromance of Rare Earth Cerium Modified Graphene Oxide / Waterborne Epoxy Resin Composite Coating

CHEN Shirun, CHEN Wenge, QIAN Ying, ZHANG Hui

表2 涂层电化学阻抗谱拟合参数

Table 2 Fitting parameters of electrochemical impedance spectra of the epoxy coating and the composite coatings

Coating Cc Rc / Ω·cm2 Cdl Rct / Ω·cm2 Y0 / Ω-1·cm-2·s n n Y0 / Ω-1·cm-2·s n n Epoxy coating Spraying 8.141 × 10-5 0.583 29716.6 4.085 × 10-10 0.877 12969.20 Roller painting 1.231 × 10-5 0.496 29218.9 6.201 × 10-10 0.880 23687.00 Brush painting 6.564 × 10-6 0.579 78536.4 2.719 × 10-10 0.881 24553.40 Composite coating Spraying 1.159 × 10-6 0.582 329905 1.084 × 10-9 0.897 25593.25 Roller painting 5.026 × 10-6 0.481 79522.6 1.921 × 10-10 0.930 19172.20 Brush painting 8.307 × 10-6 0.462 340574.8 9.006 × 10-11 0.959 19946.80