| 摘要 |
PURPOSE:To improve electrical conductivity and dispersion stability by coating the surface of spherical particles comprising phenol resin, naphthalene resin, etc., with bulk mesophase pitch by mechanochemical method, heat-treating and burning under given conditions. CONSTITUTION:Spherical particles comprising phenol resin, naphthalene resin, xylene resin, divinylbenzene polymer, etc., having 3-50mum particle diameter are prepared. Fine particles of bulk mesophase pitch having particle diameter of <=2/5 the particle diameter of the spherical particle and <=10mum are prepared. Both the particles are blended in a dry state by mechanochemical method to give particles wherein the surface of the spherical particles is coated with the fine particles of bulk mesophase pitch. Then the particles are burnt in an inert atmosphere or in vacuum and carbonized and/or graphitized. |
