Directed Assembly of Colloidal Disk Particles by Gravitation and Flow Field

Wednesday, November 19, 2008: 2:10 PM
Room 105-A (Pennsylvania Convention Center)

Zhengdong Cheng, Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX
Peng He, Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX
Andres F. Mejia, Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX

Colloidal disk particle is one of the least studied as a member of the anisotropic particle family. The study of the assembly of disk particles is significant due to its application in the fields of oil recovery, liquid crystal, soil etc. Monodisperse wax emulsions were prepared by electrospraying of melt wax. We utilize a variety of methods to investigate the aggregation, sedimentation and assembly of wax disk particles. Wax disk particle sample appear phase separation in sedimentation experiment via LUMiSizer(R) particle analyzer. The flow behavior of microdisks is studied in micro-channels to mimic the red blood cells in vessels.
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See more of this Session: Colloidal Assembly and Fabrication II - Field Assembly
See more of this Group/Topical: Engineering Sciences and Fundamentals