Dr. Donggang Yao

Associate Professor

School of Polymer, Textile & Fiber Eng.

Georgia Institute of Technology

Atlanta, GA 30332-0295

Phone: (404) 894-9076

Fax: (404) 894-8780

Email: dong.yao@ptfe.gatech.edu

Research interest:

Miniature polymer processing

   >>Novel process development

   >>Polymer flow in microgeometries

   >>Modeling and simulation

   >>All-polymer micro devices

Teaching interest:

Broad area of polymer engineering

Research

Group

Publications

Teaching

Laboratory

Keywords for research interest and ongoing research:

All polymer, bicomponent fiber spinning, biomimetic surfaces, biomimetically inspired material processing, continuous production,  deformation at meso-temperatures, demixing of polymer blends, embossing, environmentally benign, geometrically functional surfaces, gradient porous structures, heat setting, high-pressure high-temperature processing, highly noncircular fibers, industrial scalability, micro molds, micro rheology, microscale flow,  miniaturization,  molding, polymer flow in microgeometries, polymer processing modeling, porous polymer scaffolds, process dynamics, process optimization,  rapid thermal cycling, recycling, self-aligned device, self reinforcing, single polymer,  size effects, slowly crystallizing polymers, terahertz waveguides, thermoplastic processing,  ultrafine fibers, volume production. 

Current research projects:

• "Precision microprofile extrusion with a wall slip condition", Sponsor: NSF CMMI.

• "Design and manufacturing of bioactive surgical fixation devices using injection molding of gradient cellular structures", Sponsor: NSF CMMI.

• "Variothermal roll-to-roll embossing process for rapid and precision production of large-area microstructures", Sponsor: NSF CMMI.

• "Self-reinforced composites made of immiscible polymer blends", Sponsor: NSF STTR.

• "Ultra-fine filament yarns made by supersonic jet splitting", Sponsor: National Textile Center.

• "Single-polymer poly(ethylene terephthalate) composites", Sponsor: CCACTI, Georgia State.

• "Rapid production of plastic microstructures", Sponsor: NSF CMMI.

SPE 2009 "Wonder of plastics" Essay Contest