The basic composition of masterbatch is:
1. Pigment or dye
Pigments are divided into organic pigments and inorganic pigments
Commonly used organic pigments are: phthalocyanine red, phthalocyanine blue, phthalocyanine green, fast red, macromolecule red, macromolecular yellow, permanent yellow, permanent purple, azo red and so on. Commonly used inorganic pigments are: cadmium red, cadmium yellow, titanium dioxide, carbon black, red iron oxide, yellow iron oxide, etc.
2. Carrier
It is the matrix of masterbatch. The special masterbatch generally chooses the same resin as the product resin as the carrier, and the compatibility between the two is best, but at the same time, the fluidity of the carrier should also be considered.
3. Dispersant
To promote the uniform dispersion of pigments and no longer agglomerate, the melting point of the dispersant should be lower than that of the resin, and it has good compatibility with the resin, and has a good affinity with the pigment. The most commonly used dispersants are: polyethylene low molecular waxes, stearates.
4. Additives