| 镁合金/环氧聚氨酯涂层体系的耐腐蚀性能 |
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| 引用本文： | 缪克在,楼白杨.镁合金/环氧聚氨酯涂层体系的耐腐蚀性能[J].材料保护,2009,42(4). |
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| 作者姓名： | 缪克在 楼白杨 |
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| 作者单位： | 浙江工业大学机电学院材料与表面工程研究所,浙江,杭州310014 |
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| 基金项目： | 浙江省自然科学基金，浙江省科技厅项目 |
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| 摘 要： | 环氧聚氨酯(ER/PU)涂层具有良好的电绝缘性、耐腐蚀性以及与金属基体的附着力,能够有效地阻挡或缓解Cl-,NO3-,SO2-4,H2O和O2等对镁合金基材的侵蚀,提高镁合金的耐腐蚀性能.为此,采用附着力、铅笔硬度测试,浸泡、失重法、盐雾及电化学试验等方法研究了聚氨酯(PU)涂层及环氧聚氨酯(ER/PU)涂层对镁合金的腐蚀保护效果及机理.结果表明,2种涂层体系都显著提高了镬合金的耐腐蚀性能,与基材附着良好、且硬度高,但后者效果更好.
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| 关 键 词： | 耐腐蚀性 镁合金 环氧聚氨酯 涂层 |
Anti-Corrosion Behavior of Magnesium Alloy/Epoxy Resin-Polyurethane Coating System |
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| MIAO Ke-zai,LOU Bai-yang.Anti-Corrosion Behavior of Magnesium Alloy/Epoxy Resin-Polyurethane Coating System[J].Journal of Materials Protection,2009,42(4). |
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| Authors: | MIAO Ke-zai LOU Bai-yang |
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| Affiliation: | MIAO Ke-zai,LQU Bai-yang(Institute,of Material , Surface. Engineering,Zhejiang University of Technology. Hangzhou 310014,China) |
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| Abstract: | Epoxy resin-polyurethane ( ER/PU) coating has high isolation and good anti-corrosion behavior and adhesion to metal substrate, hence it is effective in increasing the corrosion resistance of Mg alloy substrate by preventing it from corrosive anions such as Cl- , NO3- , and SO24- and H,0 and O2 as well. Thus the corro-sion protection function of PU and ER/PU coatings for Mg alloy and their corrosion-resistant mechanism were investigated by making use of adhesion force measurement, hardness test with pencil, ... |
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| Keywords: | anti-corrosion behavior Mg alloy epoxy resin-poly-urethane coaling |
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