高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (3): 606.doi: 10.7503/cjcu20120764

• 物理化学 • 上一篇    下一篇

氨气腐蚀法制备黏附性能可控的超疏水铜表面

成中军2, 杜明2, 来华2, 张乃庆2, 孙克宁1,2   

  1. 1. 哈尔滨工业大学城市水资源与水环境国家重点实验室, 哈尔滨 150090;
    2. 哈尔滨工业大学基础与交叉科学研究院, 哈尔滨 150001
  • 收稿日期:2012-08-20 出版日期:2013-03-10 发布日期:2013-02-18
  • 通讯作者: 孙克宁,男,博士,教授,主要从事电化学研究.E-mail:keningsunhit@163.com E-mail:keningsunhit@163.com
  • 基金资助:

    高等学校博士学科点专项科研基金(批准号:20112302120062)、哈尔滨工业大学城市水资源与水环境国家重点实验室开放基金(批准号:ES201007)、哈尔滨工业大学科研创新基金(批准号:HIT.NSRIF.2009079)、中国博士后基金面上项目(批准号:20100471045)和中国博士后基金特别项目(批准号:201104428)资助.

Super-hydrophobic Copper Surface with Controlled Adhesion Prepared via Ammonia Corrosion

CHENG Zhong-Jun2, DU Ming2, LAI Hua2, ZHANG Nai-Qing2, SUN Ke-Ning1,2   

  1. 1. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China;
    2. Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150001, China
  • Received:2012-08-20 Online:2013-03-10 Published:2013-02-18

摘要:

采用简单便捷的方法制备出了具有不同黏附性能的超疏水表面. 通过控制氨气对金属铜表面的腐蚀时间, 分别制备了具有微米球及微米棒状结构的表面. 利用低表面能氟硅烷(FAS)修饰后, 2种表面均表现出超疏水特性(接触角均大于150°), 然而其黏附性能却截然相反. 具有微球结构的表面呈现出高黏附特性, 而具有微米棒状结构的表面则显示出低黏附特性. 研究发现, 表面不同的微观结构导致了液滴在其表面上分别处于Cassie-impregnating wetting态及Cassie态, 从而呈现出了不同的黏附性能.

关键词: 超疏水表面, 黏附性能, 氨气腐蚀

Abstract:

In this paper, we report a novel ammonia corrosion strategy for preparation of the super-hydrophobic copper surface with controlled adhesion. Surfaces with ball-like structure or rod-like structure can be achieved by simply changing the corrosion time. After modification by the low surface energy material fluoroalkylsilane(FAS), both the two surfaces show super-hydrophobic property, but the adhesive properties are rather different, the surface with ball-like structure shows high adhesion and the surface with rod-like structure shows low adhesion. The difference is ascribed to the different wetting states: Cassie-impregnating wetting state and Cassie state for droplets on the surface resulted from the different microstructures.

Key words: Super-hydrophobic surface, Adhesive property, Ammonia corrosion

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