The masterbatch can be classified according to the type of resin to be colored, such as PBT masterbatch, ABS masterbatch, PC masterbatch, PP masterbatch, TPU masterbatch, etc., or can be classified according to the coloring resin addition process, and there is injection molding. , blown film, extrusion grade three types of masterbatch. The masterbatch has a higher tinting strength due to the pretreatment of the pigment, the dosage can be reduced and the quality is stable, and the transportation, storage, use and convenience are greatly reduced.
The plastic color dispersant removes the surface air by wetting and penetrating the pigment, disperses the agglomerates and agglomerates into fine, stable and uniform particles, and no longer aggregates during processing. The commonly used dispersant is a low molecular weight poly Ethylene wax, EVA wax or oxidized polyethylene wax is used for the organic pigment and carbon black which are difficult to disperse. The synthesis of low molecular weight polyethylene wax and polyethylene low molecular weight polyethylene wax are very different.
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