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United States Department of Agriculture

Agricultural Research Service

Title: Processing Effects in Starch Extrusion

Author
item Willett, Julious

Submitted to: Woodfiber Plastics Composites Conference Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: May 3, 1995
Publication Date: N/A

Technical Abstract: There has been considerable interest in the use of starch in biodegradable plastics applications recently, with particular emphasis on thermoplastic starch as a matrix. Thermoplastic starch results from the disruption of granule structure induced by the temperature, shear, and pressure experienced during extrusion. Process parameters including moisture content, screw speed, screw configuration, temperature, and additives significantly influence the rheological and structural properties of thermoplastic starch. The impact of these variables on starch extrudate properties will be presented, with an emphasis on the use of starch as a thermoplastic resin.

Last Modified: 7/23/2014
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