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Dr. Jacinta C. Conrad

Frank M Tiller Associate Professor of Chemical and Biomolecular Engineering

Department and/or Research Center: Chemical Engineering

    Research Areas:
  • Soft Matter
  • Complex and Particulate Fluids
  • Confined Transport
  • Particle Dynamics and Rheology
713-743-3829 EMAIL FACULTY WEBSITE
Funded Research... No information is currently available for this topic.
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
  • Description:
    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