工程科学学报Issue(8)：1029-1035,7.DOI:10.13374/j.issn2095-9389.2015.08.009
纳米TiO2对丙烯酸酯聚氨酯涂层/碳钢界面的初期失效行为的影响
Effect of nano-TiO2 on the initial corrosion behavior of the acrylic polyurethane coating/carbon steel interface in NaCl solutions
摘要
Abstract
The initial corrosion behavior of the acrylic polyurethane coating/carbon steel interface in a 3. 5% NaCl solution was in-situ investigated by electronic speckle pattern interferometry ( ESPI) , electrochemical impedance spectroscopy ( EIS) and scanning electrochemical microscopy ( SECM) . The effect of nano-TiO2 on the interfacial behavior was examined. At the beginning stage without macroscopic defects, a tiny change at the interface was successfully detected by ESPI. EIS results could reflect the change of low frequency impendence moduli, which were agreed with the electrochemical morphology obtained by SECM. In other words, the interfa-cial changing velocity ( corrosion initiation rate) of the coating without nano-TiO2 is faster than that of the coating with nano-TiO2 , indicating that the addition of nano-TiO2 slows down the corrosion of the acrylic-based polyurethane/carbon steel interface.关键词
碳钢/聚氨酯/涂层/腐蚀/二氧化硅/纳米颗粒Key words
carbon steel/polyurethane/coatings/corrosion/titanium dioxide/nanoparticles分类
矿业与冶金引用本文复制引用
姜洪霞,高瑾,钱海燕,卢琳,宋东东,李晓刚..纳米TiO2对丙烯酸酯聚氨酯涂层/碳钢界面的初期失效行为的影响[J].工程科学学报,2015,(8):1029-1035,7.基金项目
国家自然科学基金资助项目(51071027,51133009) （51071027,51133009）
