A Method for Probing the Liquid--Liquid Interface

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概要

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• A simple method for probing the interface of a liquid--liquid system is proposed. Two immiscible liquids are chosen and one is a UV curable monomer. When the two liquids meet, a curved interface is formed. Such an interface can be fixed once the liquid monomer has been solidified by UV exposure. After removing the uncured liquid, the solidified surface, which records the information of the liquid--liquid interface, can be observed directly. Our result shows that the surface of the cured monomer is smooth as the liquid--liquid contact time is less than 12 h. As the contact time is long enough, the surface becomes rough. However, the roughness does not go worse when the contact time is over 1000 h. Atomic force microscope (AFM) shows that the roughness of the interface is due to the formed tiny holes and bumps. Detailed results are given and the impact of surface roughness on the device performance, such as liquid lenses, is analyzed.

• 2012-09-25

著者

• Ren Hongwen

  Department of Polymer Nano-Science and Technology, Chonbuk National University, Jeonju, Chonbuk 561-756, Republic of Korea

• Ren Lichun

  Department of Polymer Nano-Science and Technology, Chonbuk National University, Jeonju, Chonbuk 561-756, Republic of Korea

• Song Tianqi

  Department of Mathematics, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China

• Yoo Il-sou

  Department of Polymer Nano-Science and Technology, Chonbuk National University, Jeonju, Chonbuk 561-756, Republic of Korea

関連論文

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