It is well-known that surfactants self-assemble into different phases such as lamellar phase, hexagonal phase or multi-lamellar vesicles. This phenomenon is mainly driven by the surfactant concentration and its chemistry. Additional ingredients in the water phase also greatly impact surfactant self-assembly. Structured surfactant technology consists of the preparation of multi-lamellar vesicles by the self-assembly of surfactants with defined characteristics. The resulting phase shows interesting rheological behavior such as a very high elasticity and a strong shear thinning. These properties are the attributes of a strong suspensive system, which can be particularly relevant in agrochemical formulations. Over the past three years, Stepan Company has been utilizing this technology to develop highly complex formulations which show many benefits over those that employ conventional rheology modifiers. Herein, we present the continuation of this work with new examples that solve many of the issues that formulators are facing today.<br/>

Structured surfactant technology: Novel suspensive system by surfactant self-assembly, allowing for complex agrochemical formulations not achievable through conventional methods

2019 Fall National Meeting

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