Title

Measurement Of Surface Interfacial Tension As A Function Of Temperature Using Pendant Drop Images

Keywords

droplet microfluidics; interfacial tension; pefluorocarbon oil; pendant drop method; thermocapillary

Abstract

Accurate and reliable measurements of surface tension at the interface of immiscible phases are crucial to understanding various physico-chemical reactions taking place between those. Based on the pendant drop method, an optical (graphical)-numerical procedure was developed to determine surface tension and its dependency on the surrounding temperature. For modeling and experimental verification, chemically inert and thermally stable perfluorocarbon (PFC) oil and water was used. Starting with geometrical force balance, governing equations were derived to provide non-dimensional parameters which were later used to extract values for surface tension. Comparative study verified the accuracy and reliability of the proposed method. © 2011 Copyright Taylor and Francis Group, LLC.

Publication Date

10-1-2011

Publication Title

International Journal of Optomechatronics

Volume

5

Issue

4

Number of Pages

393-403

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/15599612.2011.633206

Socpus ID

84859314689 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84859314689

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