| 硅烷改性纳米ZrO2对镁锂合金表面环氧树脂涂层耐蚀性能的影响 |
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| 引用本文： | 宋大雷,刘思奇,李丰,王艳力,张涛,颜永得,张萌,王君.硅烷改性纳米ZrO2对镁锂合金表面环氧树脂涂层耐蚀性能的影响[J].高等学校化学学报,2017,38(1):77. |
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| 作者姓名： | 宋大雷 刘思奇 李丰 王艳力 张涛 颜永得 张萌 王君 |
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| 作者单位： | 超轻材料与表面技术教育部重点实验室,哈尔滨工程大学材料科学与化学工程学院, 哈尔滨 150001 |
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| 基金项目： | 国家自然科学基金(批准号: 51301050, 51104050)资助. |
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| 摘 要： | 采用涂覆法在镁锂合金表面制备了含双-3-(三乙氧基硅)丙基]四硫化物(KH-69硅烷)改性纳米ZrO2的环氧树脂涂层. 通过傅里叶变换红外光谱(FTIR)、 扫描电子显微镜(SEM)和电化学阻抗谱(EIS)等手段表征了该涂层. 考察了KH-69硅烷改性纳米ZrO2浓度对环氧树脂涂层耐蚀性能的影响. 结果表明, KH-69硅烷改性纳米ZrO2能显著提高镁锂合金表面环氧树脂涂层的耐腐蚀性能, 其中1.0%(质量分数) KH-69硅烷改性纳米ZrO2环氧树脂涂层具有较好的耐蚀性能. 在NaCl溶液中浸渍528 h后的低频阻抗值为1.6×109 Ω·cm2, 相比在NaCl溶液中浸渍240 h的纯环氧树脂涂层提高约5个数量级.
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| 关 键 词： | 镁锂合金 氧化锆 硅烷 环氧树脂 腐蚀 |
| 收稿时间： | 2016-07-18 |
Effects of Silane-modified Nano ZrO2 on the Corrosion Resistance of Epoxy Coating on the Surface of Mg-Li Alloy† |
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| SONG Dalei,LIU Siqi,LI Feng,WANG Yanli,ZHANG Tao,YAN Yongde,ZHANG Meng,WANG Jun.Effects of Silane-modified Nano ZrO2 on the Corrosion Resistance of Epoxy Coating on the Surface of Mg-Li Alloy†[J].Chemical Research In Chinese Universities,2017,38(1):77. |
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| Authors: | SONG Dalei LIU Siqi LI Feng WANG Yanli ZHANG Tao YAN Yongde ZHANG Meng WANG Jun |
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| Institution: | Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China |
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| Abstract: | The epoxy coatings containing ZrO2 nanoparticles modified with bis- 3-( triethoxysilyl ) propyl ] tetrasulfide( KH-69 silane ) were prepared by coating method on the surface of Mg-Li alloy. The effect of concentration of KH-69 silane-modified ZrO2 nanoparticles on the corrosion resistance of epoxy coatings was evaluated. The addition of KH-69 silane-modified ZrO2 nanoparticles can considerably improve the corrosion resistance of the epoxy coating on the surface of Mg-Li alloys. Among them, the epoxy coating containing 1. 0% KH-69 silane-modified ZrO2 nanoparticles exhibits the highest corrosion resistance. After 528 h of immersion in 3. 5% NaCl solution, its low frequency impendence valve is about 1. 6 × 109 Ω· cm2 , which exhibits an increase of about five order of magnitude as compared with the blank epoxy coating. |
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| Keywords: | Mg-Li alloy ZrO2 Silane Epoxy Corrosion |
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