The high-speed kneading method is a joint research and development of excellent masterbatch production process by the foreign pigment manufacturer Sid Heist Company and the equipment manufacturer Sid Company.
There are two main steps to adopt this process:
The first step is mainly to complete the wetting of the pigment: the wetting and dispersing of the pigment is carried out under the action of great impact grinding. Therefore, if this process is used to produce high-quality masterbatch, it is very important to use pigments with good dispersibility and to use fine-grained resins to wet the initial surface of the pigments.
In the second step, a twin-screw extrusion process is used to complete the dispersion and dispersion stability of the pigment. The reasonable arrangement and combination of the modular twin-screw length-diameter ratio and the screw are very important.
The process features equipment investment cost is not high, the process is simple, the product quality is good, but the quality of raw materials is high. At present, the level of masterbatch produced by this process is uneven, which depends on the quality of the equipment, the quality of the selection of pigments, and the understanding of pigment dispersion theory.
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