In masterbatch masterbatch can be divided into multiple divided according to their different characteristics, and some companies, especially the so called special needs masterbatch. Xiaobian to explain under masterbatch composition analysis today.

Masterbatch is the aggregate of the extraordinary amount of pigment (dye) contained uniformly attached to the resin obtained. Mainly by excess chemical additives, carrier resin and a dispersant composed.
Pigment
Generally divided organic pigments such as phthalocyanine green and the like; inorganic pigments such as red iron oxide, titanium dioxide and the like; dyes such as reduction of pink, orange and so dispersed. Polyolefins, PVC masterbatch is used in pigments, dyes generally can not say for polyolefin coloring, otherwise it will cause serious migration.
Polyethylene wax concentrate can be used as a pigment carrier, a pigment dispersed in the polyethylene wax which may be of PVC colored without spots, it can also be used for coloring polyamides, and mold release. Polyethylene wax has proven to be superior to the combination of the binder to the pigment polymer particles, dust is produced in a high speed mixer, without aggregation, superior adhesive flowable pigment concentrate.
Carrier resin
And uniform distribution of the pigment masterbatches in granular form. The carrier is selected to consider the compatibility of the resin to be colored, but also consider the masterbatch should have good dispersibility, fluidity and therefore the carrier should be longer than the colored resin, at the same time after being colored not affect product quality. Such as the use of the same polymer melt index greater, so masterbatch melt index was higher in the polymer, in order to ensure consistent color of the final product. PE, PP masterbatch select LDPE (low density polyethylene) resin as the carrier, PS, ABS modified masterbatch PS selected as the carrier.
Dispersant
The main surface of the pigment wetting is conducive to further pigment dispersion and stability in the resin, and must have good compatibility with the resin, it does not affect the quality of black masterbatch coloring products. Polyolefin masterbatch dispersant generally low molecular weight polyethylene wax or zinc stearate and the like. Engineering plastics masterbatch dispersant generally use polar low molecular weight polyethylene wax, magnesium stearate, calcium stearate and the like.