Brief Analysis of High Speed ​​Kneading Method - Masterbatch Production Process
The high-speed kneading method is jointly developed by foreign pigment manufacturer West Germany and equipment manufacturer West Germany W&P to develop an excellent masterbatch production process.
There are two main steps in using this process:
The first step is mainly to complete the wetting of the pigment: the wetting and dispersion of the pigment is carried out under a large impact grinding action. Therefore, it is important to use this process to produce high-quality masterbatch pigments with good dispersibility and to use fine-grained resins to wet the initial surface of the pigment.
In the second step, the dispersion and dispersion stability of the pigment are achieved by a twin-screw extrusion process. It is very important to combine the length-to-diameter ratio of the building block and the reasonable arrangement of the screws.
The process features equipment investment cost is not high, the process is simple, the product quality is good, but the quality of the raw materials is high. At present, the level of masterbatch produced by the process is uneven, depending on whether the equipment is good or bad, the quality of the pigment is selected, and the theory of pigment dispersion is understood.
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