Influence of Polystyrene (PS) solution concentration on the formation of nanobubbles

Author

Li, Di-Jie ; Pan, Yongping ; Zhao, Xingang

Author_Institution

Harbin Inst. of Technol., Harbin, China

fYear

2013

fDate

5-8 Aug. 2013

Firstpage

426

Lastpage

429

Abstract

Drag reduction of liquid flows on solid/liquid interface has become an important issue with the development of microfluidics systems. Theoretical and experimental studies have shown that at the solid-liquid interface the presence of nanobubbles is believed to be responsible for boundary slip, and the size, quantity and distribution of nanobubbles on hydrophobic surface will influence the slip length. In this paper, surface nanobubbles formed on Polystyrene (PS) films were imaged by atomic force microscope (AFM), and the influences of PS solution concentration adopted when spin-coating on nanobubbles were investigated.

Keywords

atomic force microscopy; bubbles; drag reduction; hydrophobicity; microfluidics; nanostructured materials; polymer films; polymer solutions; slip flow; spin coating; water; AFM; H₂O; atomic force microscopy; boundary slip; drag reduction; hydrophobic surface; liquid flow; microfluidic system; nanobubble formation; nanobubbles distribution; nanobubbles quantity; nanobubbles size; polystyrene films; polystyrene solution concentration; slip length; solid-liquid interface; spin coating; surface nanobubbles; Films; Microscopy; Rough surfaces; Substrates; Surface morphology; Surface roughness; Surface treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology (IEEE-NANO), 2013 13th IEEE Conference on

Conference_Location

Beijing

ISSN

1944-9399

Print_ISBN

978-1-4799-0675-8

Type

conf

DOI

10.1109/NANO.2013.6721064

Filename

6721064