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The quality of the granular carbon black developed a series of test methods, mainly for controlling the pour density of the particulate carbon black, the particle size distribution, bulk density, and fines content and other indicators of the strength of a single particle crushing. To determine the characteristics of particulate carbon black.
Granulated carbon black not only greatly reduces the apparent specific volume, and the particles become spherical in collecting, packaging, transporting and mixing ingredients in a free-flowing rubber, easy flying. Wet granulation of carbon black production and greatly improved operating environment for use, reducing pollution.