Analysis of black masterbatch quality factors

Compatibility is one of the factors in the quality of black masterbatches. If the masterbatch is made from cuttings or recycled materials, it may contain contaminants or other non-meltable polymers. This will cause some unexpected problems for the end consumer. , is difficult to restrain, wastes time and raw materials. At this time, the primer resin can be used to produce high-quality masterbatches, which have good compatibility in the melting process. High-quality masterbatches can be used LLDPE, LDPE, HDPE, PP, PS, SAN, PA produce other materials. Special polymerized masterbatches have strict physical properties, and special polymerized masterbatches can be obtained. Several large masterbatch manufacturers in the world are researching and producing so-called masterbatches "Global Universal" color masterbatches. These color masterbatches can be widely used with other raw materials, with good rheology and flexible application.

In today's international economy, international customers have high requirements on the quality of masterbatches and the stability of raw materials, which is also one of the factors that determine the quality of black masterbatches. One of the main manifestations of stability is a stable carbon black ratio .If the percentage of carbon black fluctuates, different amounts of masterbatch need to be melted, making it impossible to produce products of the same color. Some end producers report that the chemically required dilution is typically 5-8 percent, depending on the masterbatch How much material the pellet manufacturer puts into the manufacturing process. Obviously this is unacceptable. Of course, other factors, such as the fluidity and dispersion of the injected melt, should be consistent with the amount of each batch.

The factors that determine the quality of black masterbatch also include the brightness and darkness of the color. There are various types of carbon black on the market that can be used for coloring masterbatches, but the various colors and prices are also quite different. The coloring degree of large particles of carbon black is low Compared with small particles of carbon black, the background color is different. Large particle masterbatches are suitable for the production of garbage bag films, etc., but not suitable for the production of products that focus on aesthetics, such as TV signs or places that require UV protection, such as agricultural films or external pipes. For These products only use small particles of carbon black with higher prices. In addition, low transparency is also a feature of small particles of carbon black.