Novel lignin based dispersants for special carbon black

摘要

Special Carbon Black (CB) is used in a variety of applications such as paints, coatings, inks, aqueous graphite dispersions as well as in various other special applications.1 CB is an important material also due to its outstanding stability, electrical conductivity and heat resistance.2 Dispersability of CB in water is poor due to nonpolar and weak hydrophilic nature of the pigment surface. Consequently, it is very important to develop a low cost and environmentally friendly method to prepare a stable and fine dispersion of CB in aqueous system.