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Encyclopedia of Colloid and Interface Science pp 3–80Cite as

Agrochemical Formulations

  • Reference work entry

Synonyms

Colloid aspects of agrochemical formulations

Keywords

Agrochemicals; Controlled release; Emulsions; Interaction forces; Microemulsions; Microencapsulation; Surfactants; Suspensions; Suspoemulsions

Definition

Agrochemicals are formulated as emulsions, suspensions, microemulsions, and various controlled-release systems. Control of the interaction forces between the droplets or particles is essential in achieving the long-term physical stability of the formulation as well as optimum application. Various interaction forces must be considered: attractive van der Waals, repulsive electrostatic, or steric forces. Combination of these interaction forces results in various energy-distance curves that determine the state of the system on storage. It is necessary to control the various processes such as creaming or sedimentation, flocculation, Ostwald ripening, coalescence, and phase inversions. This requires the use of effective emulsifiers and dispersants. Methods must be designed to...

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    Prof. Tharwat Tadros (Consultant and Visiting Professor)

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    Tharwat Tadros

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Tadros, T. (2013). Agrochemical Formulations. In: Tadros, T. (eds) Encyclopedia of Colloid and Interface Science. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-20665-8_7

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