| 基于电化学阻抗的航空有机涂层加速老化动力学规律研究 |
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| 引用本文： | 谭晓明,王鹏,王德,钱昂.基于电化学阻抗的航空有机涂层加速老化动力学规律研究[J].装备环境工程,2017,14(1):5-8. |
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| 作者姓名： | 谭晓明 王鹏 王德 钱昂 |
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| 作者单位： | 1. 海军航空工程学院青岛校区,山东青岛,266041;2. 海军驻景德镇航空军事代表室,江西景德镇,333001 |
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| 摘 要： | 目的研究有机涂层的加速老化动力学规律。方法针对某飞机实际服役环境条件特点,编制有机涂层加速老化试验谱,开展0~9 a的当量加速老化试验。借助PARSTAT 4000电化学工作站,测试老化试验后涂层试件的电化学阻抗值。结果得到了不同老化周期有机涂层的Bode图、等效电路、孔隙率、吸水率和电化学阻抗,表征了加速试验条件下的老化动力学规律。结论低频阻抗|Z|0.01可以作涂层防腐蚀性能的评价指标,涂层老化过程大致可分为初期、中期和后期三个阶段,分别对应三个不同等效电路。
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| 关 键 词： | 加速试验谱 有机涂层 老化 电化学阻抗 |
| 收稿时间： | 2016/4/26 0:00:00 |
| 修稿时间： | 2017/1/15 0:00:00 |
Accelerated Aging Dynamic Rules of Aeronautic Organic Coating Based on Electrochemical Impedance |
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| TAN Xiao-ming,WANG Peng,WANG De and QIAN Ang.Accelerated Aging Dynamic Rules of Aeronautic Organic Coating Based on Electrochemical Impedance[J].Equipment Environmental Engineering,2017,14(1):5-8. |
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| Authors: | TAN Xiao-ming WANG Peng WANG De and QIAN Ang |
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| Institution: | Qingdao Branch, Naval Aeronautical and Astronautical University, Qingdao 266041, China,Military Representative Office of Navy in Jingdezhen, Jingdezhen 333001, China,Qingdao Branch, Naval Aeronautical and Astronautical University, Qingdao 266041, China and Qingdao Branch, Naval Aeronautical and Astronautical University, Qingdao 266041, China |
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| Abstract: | bjective To study the accelerated aging dynamic rules of organic coating.Methods Accelerated aging testing spectrum of organic coating was prepared and equivalent accelerated aging test of 0 ～ 9a was carried out according to conditions and features of environment in which the plane will serve.The electrochemical impedance of coating specimens after aging tests was tested by virtue of the PARSTAT 4000 electrochemical workstation.Results Bode diagram,equivalent circuit,porosity,water absorption and electrochemical impedance of organic coatings with different aging period were obtained.Dynamic rules of accelerated aging test were characterized.Conclusion Low-frequency impedance |Z|0.01 can be used as index for evaluation of anti-corrosion coating.The aging process coating can be divided into three stages of early,middle and later,corresponding to three different equivalent circuits. |
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| Keywords: | accelerated testing spectrum organic coating aging electrochemical impedance |
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