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Determine The Quality Of Plastic Black Masterbatch Factors
- Sep 19, 2017 -

Black masterbatch is produced using carbon black. Here we mainly analyze the factors that determine the quality of the black masterbatch, as follows:

First, the degree of dispersion: raw carbon black is very difficult to handle and dirty mixture, it is covered with dust, light weight, was fluffy. Unless it takes a large-scale treatment, it will dirty machines and workers, so that the working environment becomes dirty

Second, the coverage: for waste or recycled polymer masterbatch, this factor is particularly important, in these cases, the role of black is to cover the waste of other colors. Large particles of carbon black coloring ability is poor, not easy to cover all the other in the lower color, the results of the final product only get away from the color. In the process of melting, the ability to correctly select the carbon black with high coloring ability to cover the existing color is the so-called covering force;

Third, the rheological: If a masterbatch itself has a good dispersion, but it can not flow into the material to be molded, the production effect is not ideal. In general, the backing resin used to produce the masterbatch has a high rheology. In order to save costs, some masterbatch producers use reusable materials, scrap or recycled materials as resin carriers;

4. Compatibility: If the masterbatch is produced using chips or recycled material, it may contain contaminants or other non-meltable polymers. This can cause some unpredictable, difficult to restrain the trouble, wasting the time and raw materials of the final consumer. At this time, you can use the backing resin to produce high-quality masterbatch, masterbatch in the melting process have a good compatibility. High quality masterbatch can be produced using LLDPE, LDPE, HDPE, PP, PS, SAN, PA and other materials;

Fifth, the stability: In today's international economy, the international customers of the masterbatch quality, raw material stability and other requirements is absolutely necessary, which is the quality of the black masterbatch decision of the fifth factor. One of the main manifestations of stability is the steady ratio of carbon black. If the percentage of carbon black is fluctuating, then the amount of masterbatch that needs to be melted is not the same, and it is impossible to produce the same color tone;

Six, color brightness: the market has a variety of carbon black type can be used for coloring masterbatch, but all kinds of colors and prices are also very different. The large particles of carbon black have a lower color and a different background than the small particles of carbon black. Large particles of black masterbatch are suitable for production such as garbage bags, but are not suitable for the production of those products that pay attention to aesthetics, such as television signs or places requiring UV protection such as agricultural films or external pipelines.

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