|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials
||K-134: Viscosity Determination of Liquid Soaps Based on MMT
||Maria das Grašas da Silva Silva-Valenzuela, JÚssica de Carvalho Arjona, Bianca Bottega Michel, Gilmar Pinheiro, Tatiana Costa, Francisco Rolando Valenzuela-DÝaz
|On-Site Speaker (Planned)
||Maria das Grašas da Silva Silva-Valenzuela
Liquid soaps based on clays are important products for cosmetic use besides present efficiency and sustainable characteristics. Understanding the rheological behavior of each clay used as a raw material for this purpose is essential to obtain a good finished product and reproducibility. We used 03 samples of montmorillonite (MMT) (natural sodic, natural polycationic, sodified polycationic) to analyze the rheology of liquid soaps prepared from solutions of 7% sodium lauryl ether sulfate (SLES), dispersions of MMT with concentrations in the range of 4-15%, and solutions of sodium or potassium chloride in the same concentrations of the clay. Solid products were analyzed by XRD, FTIR and SEM, soaps and dispersions were analyzed by Brookfield viscometer at 100 rpm and 25░C. XRD and SEM showed that the process of obtaining the soap can modify the structure of polycationic clays used. Viscosity increases as the MMT concentration increases, but clay dispersion stability may decrease.