| 摘要 |
A novel dry ceramic powder and process for its electrostatic deposition are disclosed, characterized in that the powder is coated with a liquid, curable organopolysiloxane which is polymerized to a solid form before the powder is deposited. Preferably, the polysiloxane is monosubstituted, leaving hydrogen linkages which react with surfaces of the particles comprising the ceramic powder and thereby chemically unite the polysiloxane with the particles. The present ceramic powder can be electrostatically deposited onto a substrate and retain an electrostatic charge for appreciable periods of time, even in environments having fairly high relative humidities, for example 75% and higher. |
