COLOR MEASUREMENT TECHNIQUES FOR RAPID DETERMINATION OF RESIDENCE TIME DISTRIBUTIONS

摘要

A critical issue for extruded polymer products is the effect of residence time, thermal history, and shear history on the physical properties of the extrusion product. Unfortunately, residence time data are rarely used in the design and scale-up of compounded products. A reason for this is the time, complexity, and specialized equipment required to generate these data. In this work, the literature and discuss a quick, simple technique for collecting residence time distribution data are reviewed. A colorimeter, of the variety found in most plastics lab, is used to measure the color of the pelletized extrudate.