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S334 Engineering Building 1
- Visitech confocal microscope facility (with line-scanning (VT-Eye) and Nipkov-disk (VT-Infinity) scanheads), mounted on a Leica inverted microscope
- TA DHR-2 stress controlled rheometer (in Robertson lab, co-maintained by Conrad with Couette, double-Couette, cone-and-plate, parallel-plate geometries)
- Goniometer (for contact-angle measurements)
- Nicomp zeta potential instrument
Nanoparticle transport in porous media
Investigate the transport properties of nanoparticles (useful in EOR as viscosifiers, gellants, interfacial modifiers) through models of structured and unstructured porous media. (Experimental collaboration with Krishnamoorti; computational collaboration with Palmer.)
- Work Scope: Use microscopic methods (particle-tracking, differential dynamic microscopy)
- Status: Complete.
Nanoparticle transport in polymer solutions
- Description: Investigate the transport properties of nanoparticles through polymer solutions (used as rheology modifiers in oil exploration and production) in experiment. (Experimental collaboration in part with Krishnamoorti; computational collaboration with Palmer.)
- Work Scope: Use microscopic methods (particle-tracking, differential dynamic microscopy) and scattering (x-ray photon correlation spectroscopy) to measure diffusion coefficients of nanoparticles (silica, polystyrene, brush-grafted silica) in polymer solutions (HPAM, PEO, PS)
- Status: Ongoing (current focus: transport in semiflexible polymers / polyelectrolytes.)
Rheology of colloid/polymer mixtures
- Description: Investigate the effects of polymer additives on the flow properties (normal stresses, shear-induced migration, shear-thickening) of colloidal suspensions (models of drilling fluids used in oil exploration).
- Work Scope: Use bulk to measure the elastic and viscous moduli and normal stresses in colloid/polymer mixtures; use x-ray photon correlation spectroscopy to examine structure of sheared suspensions.
- Status: Ongoing.
- Jeremy Palmer (UH ChBE)
- Megan Robertson (UH ChBE)
- Ramanan Krishnamoorti (UH ChBE)
- Nayoung Park
- Narendra Dewangan
- Deepak Mangal
- Ryan Roberts
- Ali Slim