Closed-air induced composite wetting on hydrophilic ordered nanoporous anodic alumina

被引：37

作者：

Li, Zhirong ^{[1
,2
]}

Wang, Jingxia ^{[1
]}

Zhang, Youzhuan ^{[1
]}

Wang, Jianjun ^{[1
]}

Jiang, Lei ^{[1
]}

Song, Yanlin ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, New Mat Lab, Key Lab Organ Solids,BNLMS, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 23期

关键词：

POROUS SURFACES; FABRICATION; IMBIBITION; DROPLETS; POLYMER; DROPS;

D O I：

10.1063/1.3527076

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate wetting behaviors of two kinds of hydrophilic ordered nanoporous anodic alumina (PAA). The water contact angle (CA) increases at first and subsequently decreases with increasing pore diameter of PAA with closed-pore structure, while the water CA decreases monotonously on PAA with open-pore structure. These interesting wetting behaviors are mainly due to the presence/absence of closed-air in the PAA. The closed-air could prevent water from entering into the nanopores. This work offers insight to control wetting by tailoring the surface nanostructure and will be significant for applications in printing, coating, etc. (C) 2010 American Institute of Physics. [doi:10.1063/1.3527076]

引用

页数：3

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