May 11, 2010

Midwest Biopolymers & Biocomposites Workshop

 

David Grewell

Watch full video in QuickTime

View slide presentation [PDF 1MB]

Blends of Zein and Soy Plastics

This presentation explores the practicability of combining zein and soy plastics to replace petroleum-based plastics. Zein protein powder was combined with solvents and plasticizers such as ethanol and glycerol in different ratios. The resulting resins were extruded to pellets and injection molded to ASTM samples for characterization of mechanical properties. Finally, a blend of the latter two plastics obtained by blend extrusion were investigated for their mechanical strength. Application studies ranged from hay bale wrapping and lubrication sticks to pots for plants.

Overview of Biopolymers and Biocomposites

Watch full video in QuickTime

View slide presentation [PDF 535KB]

 

David Grewell

David Grewell

Assistant Professor

Department of Agricultural and Biosystems Engineering

Iowa State University

dgrewell@iastate.edu

Web site