Effect of a number of factors on the reflective power of polycaproamide or polyethylene terephthalate granules
The color characteristics of polycaproamide and polyethylene terephthalate have been studied.
It has been shown that the more saturated the polymer color and the lower its brightness, and the larger and more nonuniform are the granules and the rougher their surface is, the less is the reflective power of the polymer.
In developing procedures for controlling the color characteristics of polymer granules, it is necessary to ascertain the optimum size of the bed of granules at which polymer transparency does not affect the results of measurement. To evaluate color characteristics on instruments of the leucometer type, with an area of measured specimen of 35 mm or less, it is advisable to use fine granules of constant size.
KeywordsColor Polymer Polyethylene Terephthalate Optimum Size
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