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http://dx.doi.org/10.12925/jkocs.2004.21.4.3

Studies on the Formation of Liquid Crystal and the Stability in W/O Emulsion Systems using Beeswax and Silicone Surfactant  

Choi, Moon-Jae (Nabion Corporation)
Lee, Young-Moo (School of Chemical Engineering, Hanyang University)
Jin, Byung-Suk (Department of Applied Chemistry, Dongduk Women's University)
Publication Information
Journal of the Korean Applied Science and Technology / v.21, no.4, 2004 , pp. 279-288 More about this Journal
Abstract
Liquid crystal (LC) system was introduced into W/O emulsion in order to enhance the stability and moisturizing effect. The LC system, composed of beeswax, surfactant, and water was formed on the surface of emulsion droplet, which was investigated through a polarized microscope. The phenomenon that the viscosity in W/O emulsion system is decreased with time, was reduced by the formation of LC with the addition of beeswax. Centrifugal separation test showed that the stability of emulsion system was increased with the addition of beeswax to 3%. The color change of vitamin C was delayed in LC emulsion systems, which indicates stabilization effect against the oxidation of vitamin C. Evaporation rate in W/O emulsion was retarded by LC, so that high moisturizing effect is expected in W/O LC system.
Keywords
liquid crystal; W/O emulsion; beeswax; stability;
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