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|Author(s):||M M. McBrearty; Anthony J. Bur; S Perusich;|
|Title:||In-Line Dielectric Sensor for Chemical Composition Measurements in Molten Polymers|
|Published:||January 01, 1999|
|Abstract:||We describe a dielectric sensor that incorporates a flow-through design so that it can be placed in-line on an extruder. Dielectric measurements have been successfully applied for measuring additive concentrations in polymer melts during extrusion processing. Calcium carbonate and alumina filled polystyrene are used to demonstrate sensor capability. Theory and experiment indicate that dielectric measurements of filled polymer melts can quantitatively determine individual or total additive concentrations with an accuracy that depends on the electrical contrast and can exceed 0.1 volume percent with polymers and compounds having one or possibly two dominant additives.|
|Conference:||Society of Plastics Engineers|
|Proceedings:||Proceedings of the Society of Plastics Engineers Annual Technical Meeting|
|Location:||New York, NY|
|Dates:||May 1, 1999|
|Keywords:||dielectric properties,filled polymers,in-line measurements,material composition,polymer processing|
|Research Areas:||Polymers, Characterization|
|PDF version:||Click here to retrieve PDF version of paper (445KB)|