Dandelion-like ZnO powders were prepared by water bath deposition. The ZnO powders were then mixed with commercial anti-rust paint to form the modified paint coating. The surface structures of the coating were characterized by field emission scan electron microscope (FE-SEM), and their wettability was investigated by contact angle meter. Results show that the wettability of the coatings were enhanced after mixed with ZnO powders. The contact angle of a water droplet on the paint coating increased from 95°(before mixed with ZnO powders) to 148°(mixed with ZnO powders), and the water repellence properties of the coatings were enhanced. The effect of the ZnO powder addition on the wettability of the coating was also investigated.%采用水浴法生长出蒲公英状的纳米ZnO材料,并将其与油漆混合,制备出改良油漆涂层.分别用场发射扫描电子显微镜(FE-SEM)和接触角测量仪对其表面形貌和浸润性进行了表征.实验结果表明,加入ZnO材料后,不仅增加了油漆涂层的表面粗糙度,油漆涂层的疏水性能也得到显著改善,水滴在油漆涂层上的接触角由改良前的95°增加到改良后的148°.此外,还研究了ZnO纳米材料的添加量对涂层疏水性的影响.
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