Paper Number
PO58 

Session
Poster Session

Title
Rheology of concentrated emulsions with adhesive and repulsive droplets

Presentation Date and Time
October 23, 2019 (Wednesday) 6:30

Track / Room
Poster Session / Ballroom C on 4th floor

Authors (Click on name to view author profile)

1. Zhou, Muchu (New Mexico State University, Department of Chemical and Materials Engineering)
2. Foudazi, Reza (New Mexico State University, Department of Chemical and Materials Engineering)

Author and Affiliation Lines (in printed abstract book)
Muchu Zhou and Reza Foudazi
Department of Chemical and Materials Engineering, New Mexico State University, Las Cruces, NM 88003

Speaker / Presenter 
Zhou, Muchu

Text of Abstract
High internal phase emulsions (HIPEs) can be produced when the volume fraction of the dispersed droplets is higher than 74%. HIPEs can be used as a template to synthesize porous materials, known as polymerized high internal phase emulsions (polyHIPEs). The adhesive and non-adhesive concentrated emulsions have different rheological behaviors due to differences in the interdroplet interaction. However, the effects of droplet size on the rheological properties of attractive and repulsive emulsions have not been compared and discussed in the literature. Therefore, in the present work, we investigate the yield stress, dynamic moduli, and shear thinning of the attractive and repulsive HIPE systems with different droplet sizes. In addition, the degree of adhesiveness/repulsiveness of droplets obtained from the morphology of the HIPEs and the resulting polyHIPEs are studied for the rheological analysis.