Why Does Glow in the Dark Powder Cause Black Spots in Injection Molding?
Abstract Glow in the dark powder can be associated with black spots in injection molding, but the pigment is not automatically the material that is burning. In many cases, two mechanisms must be considered together. First, hard inorganic photoluminescent particles can increase abrasive contact in the screw and barrel before the resin fully melts and coats the particles. Wear debris may then enter ...
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