摘要
把锌片放入65℃的10%的甲酰胺水溶液中反应36h,在锌基底上生成米粒状的纳米ZnO,经10mmol/L的十八酸乙醇溶液表面修饰后,在米粒状的ZnO上面又会生成花状的十八酸锌,由于低表面能的长链烷基和花状十八酸锌形成的粗糙表面的协同作用,该表面表现出良好的超疏水性,水滴的接触角达到155°,滚动角接近5°。最后用Cassie理论对该表面的超疏水性进行理论分析。该方法为在锌片上构建超疏水表面提供了新的思路,具有潜在的应用价值。
The rice-like nanometer ZnO was obtained on the zinc substrate after dipping the zinc foil into the solution of 10% formamide solution for 36h at 65℃,the flower-like Zn[CH3（CH2）16COO]2 was formed on rice-like nanometer ZnO after the surface was modified with 10mmol/L stearic acid,the surface exhibited great superhydrophobicity due to the cooperation of low surface energy of long chain alkyl and the flower-like rough surface,the contact angle of water on this superhydrophobic surface was 155° and the glide angle was about 5°.Finally the superhydrophobicity of the surface was discussed on the basis of Cassie theory.This method provides a new way for preparing superhydrophobic surface on zinc substrate and has potential application.
出处
《化工新型材料》
CAS
CSCD
北大核心
2011年第4期59-61,83,共4页
New Chemical Materials
基金
国家自然科学基金(20475077)
关键词
超疏水
滚动角
氧化锌
十八酸锌
表面修饰
superhydrophobicity
glide angle
ZnO
Zn[CH3（CH2）16COO]2
surface modification
