玄武岩/氧化铈改性PMMA涂层的防腐及耐磨性能的研究

类延华, 刘宁轩, 张玉良, 常雪婷, 刘涛

Preparation, Corrosion- and Wear-resistance of Polymethyl Methacrylate Coating Modified with Particles of Basalt/cerium Oxide Composite

LEI Yanhua, LIU Ningxuan, ZHANG Yuliang, CHANG Xueting, LIU Tao

表1 不同样品在3.5%NaCl溶液中电化学阻抗的拟合结果

Table 1 Fitting results of electrochemical impedance spectroscopies of X70 steel samples with PMMA, BA/CeO2/PMMA-0.06, BA/CeO2/PMMA-0.08, BA/CeO2/PMMA-0.1 and BA/CeO2/PMMA-0.12 coatings in 3.5%NaCl solution

Sample Rs / Ω·cm2 CPE2 R2 / Ω·cm2 CPE1 R1 / Ω·cm2 CPEdl Rct / Ω·m2 Y0 / S·s n ·cm-2 n Y0 / S·s n ·cm-2 n Y0 / S·s n ·cm-2 n PMMA 12.11 2.062×10-7 0.5081 460 5.575×10-4 0.4281 32.19 1.091×10-3 0.7477 5291 BA/CeO2/PMMA-0.06 13.97 4.246×10-8 0.9992 793.8 1.136×10-6 0.7946 3033 1.093×10-4 0.5121 12121 BA/CeO2/PMMA-0.08 13.37 1.894×10-8 0.9988 4571 1.472×10-7 0.8878 4121 4.188×10-5 0.5896 18788 BA/CeO2/PMMA-0.1 12.72 1.504×10-4 0.5873 1000 1.478×10-5 0.5595 5096 2.687×10-3 0.5108 27686 BA/CeO2./PMMA-0.12 12.87 6.726×10-4 0.9663 1054 5.597×10-5 0.3835 605.1 4.335×10-8 0.9897 6689