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Polyolefin coloring matters needing attention

Categories: Latest NewsStars: 3Stars Visit: - Release time: 2015-09-14 14:29:00
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 Composed mainly of polyolefin masterbatch, pigment, dispersing agent, carrier of three parts, that should be noticed in polyolefin masterbatch coloring when the three items.
1. The migration Because of the organic pigment (dye) part of the solubility, although in HDPE or PP is stable enough, but not for LDPE.
2. The contractility In the organic pigment phthalocyanine series due to its excellent thermal stability, and welcomed. However, especially in the injection molding process of major products, such as: bottles, boxes, because phthalocyanine blue accelerated the crystallization (or nuclear), by its for HDPE, along the radial and transverse stress, plastic and inorganic pigment will not make in polyolefin products deformation.
3. The wear and tear "hard pigment particles friction behavior is a disadvantage, such as chrome oxide green, titanium dioxide, chromium and nickel titanium pigment, in the process of plastic mixing and processing, make the mixer wall produces serious wear and tear; Also in high speed machining mechanical wear screw and barrel; In the production belt, article products factory, cutting machine tool and nozzle have been wear and tear.
 
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