Flame retardant masterbatch is produced by
flame retardant hexabromocyclododecane with polystyrene as carrier
after the plasticizing granulation, and the content of flame
retardant can reach to *0%. Flame retardant masterbatch has
excellent flame retardancy like powder products and also has the
advantages of good dispersion, low adding quantity, easy for
foaming and extrusion, stable production, and environmentally
friendly,etc. It is applicable to various XPS production
equipments, and it can well solve the problem of unstable feed
especially for single screw equipments.