Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Tailoring Flexible Microcapsules for Mobility Control
Submission Author:
Debora Freitas do Nascimento , RJ
Co-Authors:
Jorge Antonio Avendaño Benavides, Ana Mehl, Maria Moura, Marcio CARVALHO, Debora Freitas do Nascimento
Presenter: Debora Freitas do Nascimento
doi://10.26678/ABCM.COBEM2017.COB17-1024
Abstract
Microcapsules are commonly used in the pharmaceutical, cosmetics, and food industries. Using a double emulsion microfluidic device we are able to produce microcapsules with polymeric shells (cross-linkable PDMS). The mechanical properties of the microcapsules are controlled by both the thickness and cross-link ratio of the polymeric shell. We obtain stress-strain curves for the microcapsules by squeezing the capsules between two parallel plates. We also perform experiments of flow of the microcapsules through a constricted capillary, measuring the pressure drop. The constricted microchannel serves as a model for a pore-throat geometry. Our final goal is to be able to produce/select microcapsules according to their mechanical properties and use these capsules to control water mobility through heterogeneous porous media.
Keywords
microcapsules, Microfluidics, Mobility Control
