超细TiO_2改性防腐涂料的研究  

A STUDY OF ULTRA-FINE POWDER MODIFIED ANTI-CORROSIVE COATING

作　　者：吴雪梅[1] 林玉珍[1] 刘景军[1] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029

出　　处：《中国腐蚀与防护学报》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 )

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.

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 

分 类 号：TG174.3[金属学及工艺—金属表面处理]