| 磷酸锌对环氧涂层划痕的保护尺寸研究 |
| |
| 引用本文： | 石秋梅,邵亚薇,张涛,孟国哲,陈琪昊.磷酸锌对环氧涂层划痕的保护尺寸研究[J].中国腐蚀与防护学报,2011(5). |
| |
| 作者姓名： | 石秋梅 邵亚薇 张涛 孟国哲 陈琪昊 |
| |
| 作者单位： | 哈尔滨工程大学材料科学与化学工程学院; |
| |
| 摘 要： | 用电化学阻抗谱(EIS)、电化学噪声(EN)及扫描电子显微镜(SEM)研究磷酸锌对磷酸锌/环氧涂层的保护作用及其保护尺寸的变化规律。研究表明,磷酸锌使划痕处的腐蚀产物变得致密,并对划痕有保护作用,随着划痕尺寸的增大其保护作用逐渐减弱。利用电化学噪声的散粒噪声理论并结合Gumbel随机分析方法研究磷酸锌的作用机制,发现磷酸锌填料的加入降低磷酸锌/环氧涂层的腐蚀生长概率,最终降低金属的腐蚀速度。
|
| 关 键 词： | 环氧涂层 磷酸锌 保护尺寸 电化学阻抗谱 电化学噪声 |
PROTECTION DIMENSION OF SCRATCHED ZINC PHOSPHATE/EPOXY COATING |
| |
| SHI Qiumei,SHAO Yawei,ZHANG Tao,MENG Guozhe,CHEN Qihao Materials Science & Chemistry Engineering College,Harbin Engineering University,Harbin.PROTECTION DIMENSION OF SCRATCHED ZINC PHOSPHATE/EPOXY COATING[J].Journal of Chinese Society For Corrosion and Protection,2011(5). |
| |
| Authors: | SHI Qiumei SHAO Yawei ZHANG Tao MENG Guozhe CHEN Qihao Materials Science & Chemistry Engineering College Harbin Engineering University Harbin |
| |
| Affiliation: | SHI Qiumei,SHAO Yawei,ZHANG Tao,MENG Guozhe,CHEN Qihao Materials Science & Chemistry Engineering College,Harbin Engineering University,Harbin 150001 |
| |
| Abstract: | The protection dimension of scratched zinc phosphate/epoxy coating was studied by means of electrochemical impedance spectroscopy(EIS),electrochemical noise measurements(EN) and scanning electron microscopy(SEM).The experimental results of EN,EIS and SEM revealed that zinc phosphate could inhibit the corrosion of the scratched epoxy coatings;the protection effect was gradually weakened with increasing scratch dimension from 0.4 mm,1.0 mm to 2.0 mm.The mechanism of the inhibition of zinc phosphate pigment wa... |
| |
| Keywords: | epoxy coating zinc phosphate protection dimension electrochemical impedance spectroscopy electrochemical noise |
| 本文献已被 CNKI 等数据库收录！ |
|
