Influence of the formulation variables on the viscosity of anionic surfactant-oil-water emulsions

Quimica nova

Chávez, Gerson¹  Delgado, Nacarid¹  Luzardo, Milangel¹  Parra, Irán¹  Márquez, Nelson¹  Bravo, Bélgica¹ 

[1] Universidad del Zulia, Maracaibo, Venezuela

关键词: anionic surfactant;    viscosity emulsion;    physicochemical formulation.;   

DOI  :  10.5935/0100-4042.20140035

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Phase transition and viscosity behavior of emulsified systems were studied after modifying their physicochemical formulation. Effects of concentration and nature of salts and n-alcohols, and water/oil relation on the rheological properties of emulsions were also studied. Pre-equilibrated systems were emulsified according to an agitation procedure, and the viscosity (cP) was measured at different shear rates ranging from 1 to 300 s-1. The phase behavior, as well as the emulsion type based on electrolytic conductivity, was observed. Several interpretations of the flow and viscosity curves of emulsions were made through the estimation of rheological parameters such as consistency index "k" and behavior index "n".

【 授权许可】

CC BY