镀锌紧固件表面硅烷转化膜的制备和性能

李庆鹏, 刘佳兴, 安晓云, 李永志, 高萌, 孙洪涛, 王娜

Preparation and Properties of High Performance Silane Conversion Film on Electroplated Zinc Surface

LI Qingpeng, LIU Jiaxing, AN Xiaoyun, LI Yongzhi, GAO Meng, SUN Hongtao, WANG Na

表2 不同硅烷比例的成膜硫酸铜滴定时间

Table 2 Titration time of film-forming copper sulfate at different silane ratios

Sample pH Time 1 / s Time 2 / s Time 3 / s Time 4 / s Average time / s Pure - 1 1 1 2 1.3 0∶10 8 3 4 2 4 3.2 5∶5 8 343 300 320 318 320.3 6∶4 8 270 295 268 280 278.3 7∶3 8 138 160 172 166 159.0 8∶2 8 75 64 95 89 80.5 9∶1 8 66 73 72 80 72.8 10∶0 8 13 10 8 7 9.5