Plastics applications: black is beautiful

Whether for finished goods or recyclates: a hint of special carbon black acts as a convenient-to-use pigment for determining the coloration of plastic articles, provided of course that the required shade (loosely based on Henry Ford) lies between light grey and deep black. Here the special properties profile is required for the manufacture of black masterbatches for pigmenting and improving the UV resistance of pipes, films and injection moulded parts. On the one hand, the carbon black has to spread well through the base polymer during production of the masterbatch (good dispersibility) but, on the other hand, also has to separate readily from the base polymer and spread through the melt being pigmented (good dilutability).