INTRODUCE
Flame retardant masterbatch (bromine/halogen), also known as flame retardant masterbatch, is one of the high-performance flame retardant products in plastics, rubber and other resins today. Flame retardant masterbatch (masterbatch) is a granular product made by organic combination, modification and synergistic effect of various flame retardant components on the basis of flame retardants, and mixed, extruded and granulated by twin-screw or triple screw extruders. Unlike flame retardants, flame retardant masterbatch has many advantages such as easy addition in resins, cleanliness and hygiene, high flame retardant efficiency, small amount of addition, minimal impact on the mechanical properties of resins, and less occurrence of adverse phenomena such as delamination, patterns, and precipitation after addition, saving labor, material costs, and time. Generally speaking, the dispersibility, flowability, compatibility with resin, thermal stability, and weather resistance of flame retardant masterbatch in resin are better than those of ordinary flame retardants. In addition, the flame retardant efficiency and effectiveness (cost-effectiveness) of properly formulated flame retardant masterbatch are also better than those of ordinary flame retardants. So flame retardant masterbatch has become one of the ideal choices for achieving fire resistance requirements in flame retardant plastic products, and has become an effective substitute for flame retardant powder.