Título |
Physical Characterization of a Commercial Suspoemulsion as a Reference for the Development of Suspoemulsions |
Autores |
SANTOS GARCÍA, JENIFER, Trujillo, Luis A. , Calero, Nuria , Alfaro, Maria C. , Munoz, Jose |
Publicación externa |
Si |
Medio |
Chem. Eng. Technol. |
Alcance |
Article |
Naturaleza |
Científica |
Cuartil JCR |
2 |
Cuartil SJR |
1 |
Impacto JCR |
2.175 |
Impacto SJR |
0.722 |
Fecha de publicacion |
01/11/2013 |
ISI |
000328135000008 |
DOI |
10.1002/ceat.201300284 |
Abstract |
Viscoelasticity, low shear flow, microstructure, and physical stability of a commercial suspoemulsion pesticide are studied to serve as a point of reference for the development of new suspoemulsions. Creep compliance tests allow the zero-shear rate viscosity, (0), to be calculated. As expected, the values of (0) decrease with temperature. The storage modulus is higher than the loss modulus until a crossover frequency, *, which is located at the lower frequencies studied. The dynamic parameters decrease with higher temperature and * increases in agreement with a faster relaxation mechanism. Multiple light scattering predicts the occurrence of a creaming destabilization process, whose kinetics depends on temperature. Rheological measurements are demonstrated to be a powerful tool to assist in the prediction of destabilization processes together with the multiple light scattering technique. |
Palabras clave |
Pesticide; Physical stability; Rheology; Suspoemulsion; Viscosity |
Miembros de la Universidad Loyola |
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