Title :
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
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;
Conference_Titel :
Nanotechnology (IEEE-NANO), 2013 13th IEEE Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-0675-8
DOI :
10.1109/NANO.2013.6721064
