Black masterbatch is produced using carbon black. Here we mainly analyze the factors that determine the quality of the black masterbatch for you, as follows:
1. Dispersion: Carbon black is a very difficult and dirty mixture that is dusty, light, and fluffy. Unless it is treated on a large scale, it can soil the machine and workers and make the working environment dirty.
2. Coverage: This factor is especially important for masterbatches used in scrap or recycled polymers. In these cases, the effect of black is to cover other colors in the scrap. Large-particle carbon black has poor coloring ability and is not easy to cover all other colors in the lower layer, resulting in only a deviation from the final product. In the melting process, the ability to correctly select the carbon black with high coloring ability to cover the existing color is the so-called covering power;
3, rheology: If a masterbatch itself has good dispersion, but it can not flow into the material to be molded, the production effect is not satisfactory. In general, primers used to produce masterbatches have higher rheology. In order to save costs, some masterbatch producers use recycled materials, scraps or recycled materials as resin carriers;
4.Compatibility: If the masterbatch is produced using chips or recycled materials, it may contain contaminants or other non-meltable polymers. This can cause some unpredictable and difficult to constrain the waste, wasting the time and raw materials of the end consumer. At this time, the base resin can be used to produce high quality masterbatch, and the masterbatch has good compatibility during the melting process. High quality masterbatch can be produced using LLDPE, LDPE, HDPE, PP, PS, SAN, PA and other materials;
5.Stability: In today's international economy, it is necessary for international customers to have high requirements on the quality of masterbatch and the stability of raw materials. This is also the fifth factor determining the quality of black masterbatch. One of the main manifestations of stability is the smooth carbon black ratio. If the percentage of carbon black is fluctuating, the amount of masterbatch to be melted is not the same, and it is impossible to produce a product of the same color;
6.the color shade: There are various carbon black types on the market that can be used for the coloration of masterbatch, but the color and price of each type are also very different. Large particle carbon black has a lower degree of coloration and a different background color than small particle carbon black. Large-grain black masterbatches are suitable for use in film production such as garbage bags, but are not suitable for the production of products that are aesthetically pleasing, such as TV signage or where UV protection is required, such as agricultural film or external piping.