Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5206118 | Polymer Testing | 2015 | 7 Pages |
Abstract
An in-line colorimeter that is able to quantify color changes in real time during extrusion was developed and validated. It is composed of LEDs emitting at three different wavelengths and a photocell that measures the intensity of the light transmitted through the polymer melt flow. The colorimeter was validated at the bench by employing colored aqueous solutions and in-line during the extrusion of a colored polypropylene. Furthermore, it was used to in-line quantify the color changes in a polypropylene as generated over multiple extrusions due to thermo-mechanical degradation. The technique was proved to be fast and suitable to measure color changes in real time during extrusion.
Related Topics
Physical Sciences and Engineering
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Authors
LetÃcia Sausen Hamester, Pablo Andrés Riveros Muñoz, Sebastião Vicente Canevarolo,