Factors determining the quality of black Masterbatch
Black Masterbatch is produced using carbon black. Here we mainly for you to resolve the factors that determine the quality of black Masterbatch, the specific following aspects:
Dispersion: Carbon Black is a very difficult and dirty mixture that is covered with dust, light weight and fluffy shape. Unless a large-scale treatment is adopted, it will contaminate machines and workers and make the working environment dirty.
II. Coverage: This factor is particularly important for masterbatch used in waste or recycled polymers, in which case the black effect is to cover other colors in the scrap. Large particles of carbon black color is poor, not easy to cover all other colors in the lower layer, resulting in the final product has to deviate from the color. In the melting process, the right first choice with high coloring capacity of carbon black to cover the existing color capacity is the so-called coverage force;
Third, flow degeneration: If a color masterbatch itself has good dispersion, but it can not flow into the material to be molded, that production is not ideal. In general, the resin used for the production of Masterbatch has a high rheological property. In order to save costs, some masterbatch producers use recycled materials, scrap or recycled raw material as a resin carrier;
IV. Compatibility: If the Masterbatch is produced using chips or recycled materials, it may contain contaminants or other polymers that cannot be melted. This can cause unforeseen and difficult constraints, wasting the time and material of the end consumer. At this time, you can choose the bottom resin to produce high-quality masterbatch, masterbatch in the melting process has good compatibility. High-quality Masterbatch can be produced using LLDPE, LDPE, HDPE, PP, PS, SAN, PA and other materials;
Five, Stability: In today's international economy, international customers on the quality of masterbatch, raw materials, such as the stability of the high demand is absolutely necessary, this is the determination of black Masterbatch quality of the fifth factor. One of the main performance of stability is the steady carbon black ratio. If the percentage of carbon black is fluctuating, then the number of masterbatch required to melt is not the same, to produce the same hue of the product is also impossible;
VI. Color brightness: There are various types of carbon black in the market can be used in color masterbatch coloring, but all kinds of color and price is also very different. The large particle carbon black has lower coloring degree and different background color than the small particle carbon black. Large particles of black masterbatch are suitable for production of films such as trash bags, but not for the production of aesthetically pleasing products such as TV signs or UV-resistant areas such as agricultural films or external pipelines.