| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve dispersibility of graphite in a paint and smoothness, water resistance and solvent resistance of a paint film without using any surfactant or dispersant or using the surfactant or the dispersant in an amount as small as possible, by performing surface modification of the graphite. <P>SOLUTION: The surface of the graphite particle, which is used as a compounding agent in the paint etc., is modified using a silica microparticle to achieve a surface charge in terms of zeta-potential of from -2 to -30 mV. The silica microparticle is preferably a colloidal silica with an average particle size of 5-100 nm or a hydrophobic silica with a primary particle size of 5-30 nm. The graphite particle is preferably at least one chosen from the group consisting of natural graphite, mesophase pitch graphite, artificial graphite and kish graphite. The paint is prepared by compounding the modified graphite particle. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
