What are the factors that determine the quality of black masterbatch?

1. Dispersion Degree Carbon black is a very difficult and dirty mixture that is dusty, light, and fluffy. Unless large-scale treatments are used, it can foul machines and workers and make the work environment dirty.

2. Coverage This factor is especially important for masterbatches used in scrap or recycled polymers where the role of black is to cover other colors in the waste. The large-particle carbon black has a poor coloring ability and is not easy to cover all other colors in the lower layer, and as a result, the final product only obtains a deviation from the color. 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 dispersibility, but it cannot 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 constraints, wasting the time and raw materials of the final 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. Premium masterbatches can be produced using LLDPE, LDPE, HDPE, PP, PS, SAN, PA, and other materials.

5, stability In today's international economy, international customers are absolutely necessary for the quality of masterbatch and the stability of raw materials, which is the fifth factor that determines 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 hue.

6, color shades There are various carbon black types on the market for coloring 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 television signage or where UV protection is required, such as agricultural film or external piping.