| 纳米SiO2粒子复合对聚脲涂层耐蚀性能的影响 |
| |
| 引用本文： | 李全德,孟惠民. 纳米SiO2粒子复合对聚脲涂层耐蚀性能的影响[J]. 北京科技大学学报, 2011, 33(6): 745-750 |
| |
| 作者姓名： | 李全德 孟惠民 |
| |
| 作者单位： | 北京科技大学腐蚀与防护中心表面科学与技术研究所,北京100083;北京表面纳米技术工程研究中心,北京100083 |
| |
| 基金项目： | 国家科技支撑计划资助项目(No.2007BAB27B02) |
| |
| 摘 要： | 采用紫外光暴露+冷凝的紫外加速老化试验,结合表面形貌观察测试了纳米SiO2粉体复合聚脲涂层的光老化性能,采用3·5%NaCl溶液浸泡试验测试了涂层的耐海水浸泡腐蚀性能,通过场发射扫描电子显微镜、自腐蚀电位和交流阻抗图谱等分析了不同涂层的耐蚀性能.结果表明:纳米SiO2粉体显著提高了芳香族聚脲涂层的耐蚀性能,自腐蚀电位由-40mV升高至60mV,电化学阻抗模值增加了约一个数量级,涂层进入迅速老化阶段的时间延长了约120h,在3·5%NaCl溶液中的浸泡寿命提高了约600h.
|
| 关 键 词： | 聚脲 老化 纳米颗粒 二氧化硅 耐腐蚀性 |
Influence of nano-SiO_2 particle compositing on the anti-corrosion performance of polyurea coatings |
| |
| LI Quan-de,MENG Hui-min. Influence of nano-SiO_2 particle compositing on the anti-corrosion performance of polyurea coatings[J]. Journal of University of Science and Technology Beijing, 2011, 33(6): 745-750 |
| |
| Authors: | LI Quan-de MENG Hui-min |
| |
| Affiliation: | LI Quan-de1,2),MENG Hui-min1,2) Wingdingsj 1) Corrosion and Protection Center,Laboratory for Corrosion-Erosion and Surface Technology,University of Science and Technology Beijing,Beijing 100083,China2) Beijing Engineering Research Center for Surface Nanotechnology,China |
| |
| Abstract: | The light aging performance of nano-SiO2 particle composited polyurea coatings were tested by ultraviolet accelerated aging and surface morphology observations.The corrosion resistance to seawater of the coatings was measured by soaking in a 3.5% NaCl solution.Field emission scanning electron microscopy,corrosion potential measurements and electrochemical impedance spectroscopy(EIS) were used to analyze the corrosion resistance of different coatings.The results indicate that the corrosion resistance of arom... |
| |
| Keywords: | polyurea degradation nanoparticles silicon oxides corrosion resistance |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
