摘要
用3-巯基丙基三甲氧基硅烷(3-MPS)在银电极表面制备了自组装单分子膜,研究了该组装膜在0.1mol/LNaOH中对银的防护作用。通过极化曲线、接触角及俄歇电子能谱等方法对组装膜的极化电阻、腐蚀电流及表面状况进行了研究表征,得到了最佳MPS组装液浓度为1×10-4mol/L和最佳组装时间为6h下的腐蚀电位、腐蚀电流密度、极化电阻和缓蚀率等结果。
Self-assembled monolayer of 3 -mercaptopropyltrimethoxysilane (3 -MPS) absorbed on the surface of silver was constructed, and the corrosion protection of the monolayer for silver in 0.1 mol/L NaOH solution was studied by polarization curves, contact angle and auger electron spectrometer (AES). Results of polarization curves show that the best effective pretreatment concentration of MPS in ethanol is 1×10^(-4)mol/L and the optimal assembled time is about 6 hours. The corrosion potential, corrosion current density, polarization resistance and inhibition efficiency of monolayer film under best conditions are obtained. Assembled mechanism is revealed by contact angle and AES.
出处
《材料保护》
CAS
CSCD
北大核心
2004年第1期6-8,共3页
Materials Protection
关键词
3-巯基丙基三甲氧基硅烷
自组装膜
银
防腐蚀
mereaptopropyltrimethoxysilane
self - assembled monolayer film
silver
corrosion resistance
