摘要
通过一步水热反应在锌片表面构筑出粗糙的微观结构,经硬脂酸修饰后,水滴在该表面的静态接触角高达161.8°,而滚动角小于3°。扫描电子显微镜(SEM)显示水热产物为大小均一、方向各异的纳米棒,X射线衍射(XRD)进一步证实生成的氧化锌是六方晶系纤锌矿型结构。探讨了反应温度、反应浓度和反应时间对氧化锌表面润湿性能的影响,对所获取的超疏水样品进行了防冰性能测试,证实该表面具有较好的延缓静态水滴结冰和降低冰粘附强度的能力。
ZnO superhydrophobic surface was successfully prepared via a simple hydrothermal method on zinc plate after chemical modified by stearic acid. The results showed that the prepared surface exhibited superhydrophobicity with a water contract angle of 161. 8° as well as a small siliding angle of 3°. Scanning electron microscope show the product was ZnO nanorods and X-ray scattering techniques confirmed that ZnO has a hexagonal wurtzite structure. The effect of reaction solution temperature,concentration,and reaction time on the wettability of ZnO coatings has been discussed and the optimum reaction conditions also have been found.At last,anti-icing behavior of the surface was investigated in a homemade refrigeration system,which demonstrated that such prepared surface had certain ability of delaying static water droplets freezing and reducing the bond strength between ice and pavement surface.
出处
《湖北理工学院学报》
2016年第5期46-51,共6页
Journal of Hubei Polytechnic University
基金
湖北省自然科学基金项目(项目编号:2015CFB323)
湖北理工学院引进人才项目(项目编号:15xjz01R)
湖北理工学院创新人才项目(15xjz01C)
关键词
水热法
超疏水
ZNO纳米棒
防冰
hydrothermal method
superhydrophobic
ZnO nanorods
anti-icing
