The best of the Utilities for the MasterbatchesOn July 2, 2019 by Marshall Appelgren
Most of the coloured soot obtained from the kiln process is characterised by a high surface area, low bulk density and typical humidity. These properties, in essence, determine the tasks of compounding: soot particles, which, based on physical forces, tend to form aggregates or agglomerates, should separate in the process of compounding. Used directly in Buss Co-Kneeters, mixing processes at moderate shear rates, and the corresponding relaxation phases, lead to excellent distributional mixing results.
At the same time, shear rates are sufficient to achieve dispersive mixing with all kinds of aggregates present without damaging the substrate materials. Due to the possibility of dividing the soot fraction into several supply points, the possibility of trapped air and humidity intentionally volatilize, as well as actively degassing downstream, high-performance values with excellent quality can be achieved. For decades, many raw material manufacturers, as well as global technology leaders in the industry, have relied on the Buss Co-Kneeter system for processing black masterbatch .
The handling of masterbatch additives is an extremely wide area, as wide as the additives used for this and their principles of operation. Thus, specially targeted properties are achieved in the final product or implemented in the area of …