Levich Institute Seminar Announcement, 05/07/2013
Tuesday, 05/07/2013
2:00 PM
Steinman Hall, Room #312
(Chemical Engineering Conference Room)

Professor Anson Ma
University of Connecticut
Institute of Materials Science

"The Microstructure, Rheology, and Processing of Carbon Nanotube Suspensions"

ABSTRACT


The presentation will begin with an overview of ongoing research activities in the Complex Fluids Laboratory (CFL) at the University of Connecticut. Key findings on the microstructure and rheology of carbon nanotube suspensions will then be presented. Carbon nanotubes (CNTs) are rolled cylinders of graphene sheets with an aspect ratio > 1000. The high aspect ratio of CNT implies a small amount of material (typically 1% wt. or less) is required for electrostatic dissipation in polymer composites. However, the high-aspect-ratio of CNTs also results in significant viscosity enhancements, posing a processing challenge. The presentation will cover both experimental studies and rheological modeling of CNTs suspended in epoxy and acrylic as well as some recent developments in spinning CNT fibers using superacids.

BRIEF ACADEMIC/EMPLOYMENT HISTORY

  • 2011 - Present: Assistant Professor, University of Connecticut (USA)
  • 2009 - 2011: J. Evans Attwell-Welch fellow, Rice University (USA)
  • 2008 - 2009: Technical Consultant, Paramata Ltd. (UK), Nanoholdings LLC (USA)
  • 2003: Summer Intern, CLP Research Institute (Hong Kong)
  • 2001: Summer Assistant, Air Products Asia Inc. (Hong Kong)

RECENT RESEARCH INTERESTS:

  • Interfacial rheology of carbon nanotubes at fluid-fluid interfaces (NSF CAREER)
  • Flow dynamics of drug nanocarriers for improved cancer therapy (NSF EAGER)
  • Inkjet printing of optical metamaterials




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