等离子处理对医用镁合金表面聚合物防护涂层的影响

李鹏宇, 刘子童, 亢淑梅, 陈姗姗

Effect of Plasma Treatment on Performance of Polybutylene Adipate Coating on Biomedical AZ31 Mg-alloy

LI Pengyu, LIU Zitong, KANG Shumei, CHEN Shanshan

表5 用不同等离子处理后PBA防护涂层镁合金的动电位极化曲线拟合结果

Table 5 Fitting results of dynamic potential polarization curves of Mg alloy with PBA protective coatings after different plasma treatments

Samples Mg F PBA 60 W/20 s 60 W/40 s 60 W/60 s 60 W/180 s 60 W/300 s 90 W/300 s 120 W/300 s Icorr/A∙cm-2 1.280×10-5 2.070×10-6 4.920×10-9 3.096×10-8 1.149×10-8 1.034×10-8 1.216×10-8 2.385×10-8 3.162×10-8 3.664×10-8 Ecorr / V -1.50 -1.51 -1.52 -1.66 -1.61 -1.58 -1.63 -1.64 -1.66 -1.67 Pi / mm∙a-1 29.248 4.72 0.0112 0.0707 0.0263 0.0236 0.0278 0.0545 0.0723 0.0837