期刊
ACS APPLIED POLYMER MATERIALS
卷 3, 期 4, 页码 2138-2143出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsapm.1c00176
关键词
homogeneous polystyrene; raspberry nanoparticles; superhydrophobicity; Cassie-Baxter state; Wenzel state
资金
- Advanced Research Projects Agency-Energy (ARPA-E), U.S. Department of Energy [DE-AR0000744]
The study demonstrates the preparation of a superhydrophobic polystyrene surface through a convenient synthesis method, which exhibits multiple stabilization wetting points and achieves superhydrophobicity through hierarchical roughness.
We introduce a superhydrophobic surface that is composed of homogeneous polystyrene (PS) raspberry nanoparticles of around 50 nm diameter, via a convenient single-step scalable synthesis method. The surface has multiple stabilization wetting points, which is caused by hierarchical roughness from the unique raspberry morphology. Raspberry morphology also enables PS (which has higher surface tension than fluorinated materials) to have superhydrophobicity with more than 120 degrees of the receding contact angle as well as over 150 degrees of the advancing contact angle. Embedded hierarchical topography in raspberry nanoparticles enables the enhancement of secure physical roughness for superhydrophobicity, which can be less affected by structures from the aggregations of nanoparticles during the coating process such as the spraying method. The nonfluorination-driven superhydrophobic surface composed of homogeneous polymers, which can wet step-by-step stabilization from the Cassie-Baxter state to the Wenzel state through multiple metastable states, opens avenue for practical applications requiring instant and cost-effective superhydrophobic surfaces.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据