Journal
POLIMERY
Volume 61, Issue 7-8, Pages 544-550Publisher
INDUSTRIAL CHEMISTRY RESEARCH INST
DOI: 10.14314/polimery.2016.544
Keywords
injection molding; coloring agents; gloss; color; acrylonitrile-butadiene-styrene copolymer
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The results of examination of the influence of polymer processing parameters and addition of coloring agents in the form of yellow organic pigment PY 191 and its masterbatches based on acrylonitrile- butadiene-styrene copolymer (ABS) or polystyrene (PS) on the color and gloss of injection molded parts have been presented. Gloss investigations, at the light incidence on the molding surface in the direction of polymer flow in the cavity and in the opposite direction at an angle of 60 degrees and 20 degrees were made (Figs. 3-6). Color tests were also carried out (Table 4). The obtained results showed that high mold temperature (T-f = 80 degrees C) and lower injection temperature (T-w = 230 degrees C) allow to obtain parts of higher gloss and smaller variation in their color.
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