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    Measuring Surface Tension Using the Pendant Drop Method

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    Authors
    Jaleel Bolden
    Zane Corder
    Charlene Higdon
    Miller, Camille
    Issue Date
    2015-04-17
    URI
    http://hdl.handle.net/10675.2/552630
    
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    Abstract
    Measuring surface tension between fluids is of a great practical importance in the oil, food, chemical, cosmetic, etc. industries. Also, the measurement of the contact angle tl1at is formed between the fluid interface and a restricting wall are of prime importance in surface science. Instruments that employ the DuNouy ring and Wilhelmy plate methods are in common use at industry and research laboratories but they are very labor intensive. Th ere is a need for a rapid, easy and low cost technique with satisfactory accuracy and reproducibility. Reliable measurement of these parameters require significant computer programming and image analysis. The goal of the project has been the development of a computer program written in Matlab which use the pendant drop method to measure t he surface tension between two fluids. In addition, an experimental setup has been developed to test the accuracy of this method. In the framework of the soft matter, where tl1e surface tension of tl1e fluids plays a key role, the use of more complex and biological fluids make harder to find data a bout how interact these fluids. This is the reason that codes like these are inclispensable tools in these laboratories.
    Affiliation
    College of Science and Mathematics
    Description
    Presentation given at the CURS Brown Bag Seminar Series on April 17, 2015
    Series/Report no.
    Spring
    2015
    Collections
    CURS Brown Bag Presentations

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