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http://dx.doi.org/10.12925/jkocs.2015.32.1.72

Preparation and Antifoaming Properties of Long Chain Fatty Acid Methyl Esters  

Park, Jong-Kwon (Department of Engineering Chemistry, College of Engineering Chungbuk National University Chemistry)
Kim, A-Ram (Department of Engineering Chemistry, College of Engineering Chungbuk National University Chemistry)
Hwang, Jun-Bae (Department of Engineering Chemistry, College of Engineering Chungbuk National University Chemistry)
Jeong, Noh-Hee (Department of Engineering Chemistry, College of Engineering Chungbuk National University Chemistry)
Publication Information
Journal of the Korean Applied Science and Technology / v.32, no.1, 2015 , pp. 72-77 More about this Journal
Abstract
In this study, anti-foaming agents of a fatty acid methyl esters was synthesized and confirmed by FT-IR and $^1H-NMR$ spectroscopy. Synthesized material of characteristic of -C=O group having a $1740cm^{-1}$ and -C-O group $1175cm^{-1}$ peak by using FT-IR, and it was confirmed that k. Surface tensions were measured by surface tensiometer CBVP-43. Their surface tension values was 17.7 to 21 dyne/cm. Anti-foaming abilities in the SLS solution was measured through the Ross-Miles method. Performance of the 4 type of anti-foaming agent was determined and the best anti-foaming agent was prepared using stearic acid methyl.
Keywords
Anti-foamer; Methyl stearate; Fatty acid ester;
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