Brassard J D, Sarkar D K, Perron J, Audibert-Hayet A, Melot D
Anti-icing Materials International Laboratory (AMIL), Université du Québec à Chicoutimi, 555 Blvd. Université, Chicoutimi (Saguenay), Québec G7H 2B1, Canada.
Centre Universitaire de Recherche sur l'Aluminium (CURAL), Université du Québec à Chicoutimi, 555 Blvd. Université, Chicoutimi (Saguenay), Québec G7H 2B1, Canada.
J Colloid Interface Sci. 2015 Jun 1;447:240-7. doi: 10.1016/j.jcis.2014.11.076. Epub 2014 Dec 6.
Thin films of zinc have been deposited on steel substrates by electrodeposition process and further functionalized with ultra-thin films of commercial silicone rubber, in order to obtain superhydrophobic properties. Morphological feature, by scanning electron microscope (SEM), shows that the electrodeposited zinc films are composed of micro-nano rough patterns. Furthermore, chemical compositions of these films have been analyzed by X-ray diffraction (XRD) and infra-red (IRRAS). An optimum electrodeposition condition, based on electrical potential and deposition time, has been obtained which provides superhydrophobic properties with a water contact angle of 155±1°. The corrosion resistance properties, in artificial seawater, of the superhydrophobic zinc coated steel are found to be superior to bare steel. Similarly, the measured ice adhesion strength on superhydrophobic surfaces, using the centrifugal adhesion test (CAT), is found to be 6.3 times lower as compared to bare steel. This coating has promising applications in offshore environment, to mitigate corrosion and reduce ice adhesion.
通过电沉积工艺在钢基底上沉积锌薄膜，并进一步用商用硅橡胶超薄膜进行功能化处理，以获得超疏水性能。通过扫描电子显微镜（SEM）观察形态特征，结果表明电沉积的锌薄膜由微纳粗糙图案组成。此外，还通过X射线衍射（XRD）和红外反射吸收光谱（IRRAS）对这些薄膜的化学成分进行了分析。基于电势和沉积时间，获得了最佳的电沉积条件，该条件可提供水接触角为155±1°的超疏水性能。研究发现，超疏水锌涂层钢在人工海水中的耐腐蚀性能优于裸钢。同样，使用离心粘附试验（CAT）测得的超疏水表面上的冰粘附强度与裸钢相比降低了6.3倍。这种涂层在海洋环境中具有减轻腐蚀和降低冰粘附的应用前景。
