摘要
利用交流阻抗技术研究超细TiO2 改性环氧防腐涂料性能 .结果表明 ,在 3 5 %NaCl溶液中 ,超细TiO2 改性环氧防腐涂料的交流阻抗谱为单容抗半圆弧 ,其等效电路为极化电阻和涂层电容并联的结构 .且经过半年的浸泡 ,超细TiO2 改性环氧防腐涂料的极化电阻仍然大于 1 0 8Ω·cm2 、涂层电容小于 1 0 -1 0 F/cm2 ,吸水率仅为 0 1 2 。
In the present paper,EIS was used to study ultra-fine TiO 2 modified epoxy anti-corrosion coating.Experimental results show that the Nyquist plot of ultra-fine TiO 2 modified epoxy anti-corrosion coating is a single capacitive loop,and its equivalent circuit is parallel connection of polarization resistance and coating capacitance.After half year,immersion in 3.5% NaCl solution,the polarization resistance keeps higher than 10 8 Ω·cm,coating capacitance lower than 10 -10 F/cm 2 and water absorption is 0.12.These show that the ultra-fine TiO 2 modified epoxy anti-corrosion coating has excellent anti-corrosion performance and anti-water performance.
出处
《中国腐蚀与防护学报》
CAS
CSCD
2004年第1期33-36,共4页
Journal of Chinese Society For Corrosion and Protection
基金
国家自然科学基金项目 ( 5 0 10 10 0 2 )
关键词
交流阻抗谱
超细TiO2改性
环氧防腐涂料
耐蚀性
耐水性
electrochemical impedance spectroscopy (EIS),ultra-fine TiO 2 modified,epoxy anti-corrosion coating,anti-corrosion performance,waterproof performance
