How to masterbatch

September 30, 2008 on 10:37 pm | In Tech | No Comments

Masterbatch by the excess chemical additives, dispersants and carriers are resin composition. Masterbatch is the extraordinary amount of paint (dye) attached to the resin contained in uniform and be in the aggregate.
Constitute a major masterbatch

1, Color
General points of organic pigments such as phthalocyanine green, and so on; inorganic pigments such as red iron oxide, titanium dioxide; dyes such as pink to restore the scattered orange and so on. Polyolefins, PVC masterbatch is used in paints, dyes generally can not be said for coloring polyolefins, or give rise to migration seriously.

2, Dispersant
The main color on the surface wetting, the paint will help further spread and stability in the resin, at the same time must be compatible with the resin, color does not affect product quality. Polyolefin masterbatch dispersant generally low-molecular-weight polyethylene wax esters or hardware, such as zinc. Engineering Plastics masterbatch dispersant generally have polar low-molecular-weight polyethylene wax, hard-acid magnesium, calcium, and other hard-ester.

3, The carrier resin
So that the color masterbatch were uniformly distributed and granular. Choice of carriers to be considered with the color of the resin compatibility, but also to consider masterbatch should have a good dispersion, the carrier mobility should be greater than the colored resin, at the same time after being colored does not affect the quality of products. If a larger selection of melt index of its kind polymer, so that the masterbatch melt index was higher in the polymer to ensure that the final products of the same color. PE, PP masterbatch choice LDPE (low density polyethylene) resin as the carrier, PS, ABS masterbatch modified PS choice as the carrier.

Hint:If there is any inconsistency or conflict between the English and Chinese versions, the Chinese version shall prevail for all purposes.

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