应用电化学阻抗法(EIS)、示扫描量热法(DSC)、X射线光电 子谱(XPS)研究了添加Ti纳米粒子对环氧涂层防护性能的影响.结果表明：添加Ti纳米粒子可 以提高环氧涂层的防护性能，添加量在05%(以w/w计)时最好.这是由于添加Ti纳米粒子虽 然可增加涂层孔隙率，但Ti纳米粒子与环氧树脂之间存在的相互作用可改善涂层对腐蚀性介 质的屏蔽性能，提高涂层的防护性能.
Electrochemical impedance spectroscopy (EIS) was co upled with differential scanning calorimetry (DSC) and X-ray photoelectron spect roscopy (XPS) methods to investigate the effects of nano-Ti particle on the corr osion resistance of an epoxy coating on carbon steel.Four systems were studied:a clear coat and three pigmented coatings (with 0.1%,05%,1% nano-Ti).Impedance measurements showed that nano-Ti particle could improve the corrosion resistance of the coating;and the optimal addition is 0.5% (mass%).The results obtained by D SC and XPS showed that the nano-Ti particle enhanced interactions with epoxy res in.Addition the nano-Ti particles into epoxy resin can act two opposite effects: the beneficial effect is attributed to a chemical reaction between the nano-Ti powder and the epoxy resin,which improves the barrier effectiveness of the coati ng; this outweighs the harmful effect of an increase in the number of pores in t he coating.
参考文献
| [1] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%