| 摘要 |
PURPOSE:To obtain the titled dispersant which disperses ceramic material favorably into an organic solvent and facilitates wet crushing by using polyethylene- imine as an effective component. CONSTITUTION:100pts.wt. ceramic powder substance such as silicon nitride, etc., 0.01-5pts.wt. polyethylene-imine in the range of 300-100,000, especially 600-10,000mol.wt., for example obtained by ring-opening polymerization of ethylene-imine, and 10-70pts.wt. solvent (example: methanol) are mixed to obtain a <=1,000cps slurry, which is crushed by a continuous type mill or ball mill, etc. |
