1. Increase the abrasion resistance and service life of rubber products (reinforcing agent)
     2. Cost saving, general rubber products are two rubbers and one carbon black (filler)
     Different uses of carbon black
     It can be divided into two categories according to its purpose:
          Carbon black, pigment carbon black for rubber
     1. Classification of carbon black for pigment
     According to the coloring ability of carbon black internationally, it is usually divided into three categories, namely high pigment carbon black, medium pigment carbon black and low pigment carbon black.
    This classification system is usually represented by three English letters. The first two letters indicate the coloring ability, the last one indicates the production method
     E.g:
     High pigment channel black: HCC (high color channel)
     High color furnace black HCF (high color furnace)
     Classification of color-like pigments is mainly based on particle size and blackness.
     High pigmented black (10-14nm), medium pigmented black (15-27 nm), medium pigmented black (17-27 nm), low pigmented black (28-70 nm)