The plastic masterbatch is a concentrated product made by loading the plastic additives in the resin with an extraordinary amount; when manufacturing plastic products, it is not necessary to add this kind of plastic additives, just add this kind with an extraordinary amount in proportion The masterbatch is fine. Therefore, plastic masterbatch is a new type of special material for polymer material processing. Variety of varieties, such as filler masterbatch, desiccant masterbatch, black masterbatch, white masterbatch,  color masterbatch, flame-retardant masterbatch, antistatic masterbatch, wear-resistant masterbatch, multifunctional masterbatch etc.

In the past, only in order to facilitate the uniform dispersion of the small-dose materials used in production, some stabilizers, fillers, and solid pigments that are too fine (about 0.5μm) that are prone to agglomeration were previously put on a mixer or three-roller grinder. Small-dose materials such as particles are often mixed together to form a viscous slurry or powdered masterbatch before being poured into a plastic mixture. Therefore, the plastic masterbatch refers to a pre-prepared plastic mixture containing a high percentage of various small-dose additives and colorants. In plasticizing and formulating, use appropriate masterbatch to join with polymer (or a mixture of polymer and other additives) so as to achieve accurate final concentration of various additives and uniform fraction of plastic processing raw materials.

With the development of the plastics industry and the advancement of technology, the definition and connotation of masterbatch in plastics processing have been expanded and deepened. It is not limited to the use of masterbatch for small doses of raw materials such as pigments, which is a large amount of fillers. Such as calcium plastic products also use filler masterbatch technology. There are more and more varieties of masterbatch, and the application is more and more extensive. This is because the use of masterbatch simplifies the complex batching process; the granulated masterbatch is convenient to measure; reduces dust and flying; the ideal masterbatch structure not only improves the processability of commercial products, but also facilitates the full dispersion of the components and prevents the raw materials. Agglomeration thus improves the quality of products, improves working conditions, and reduces costs, so it is welcomed by plastic processing plants, and its promotion and application are smooth. Plastic masterbatch has become one of the most important forms of application of plastic additives in the world today.