Dispersion of PZN-PZT powder in organic media with chemically bonded dispersant

A chemically bonded dispersant was prepared by reaction of a titanium alkox ide with a long- chain carboxylic acid, and its dispersion in the PZN - PZT slurry was investigated through sediment test and FT - IR technique. The r esults show that the dispersant exhibited a good dispersion in PZN - PZT sl urry, The dispersant concentration required to produce stable dispersions i n nonaqueous media corresponded to the monomolecular layer coverage onto th e PZN - PZT particle surface. The dispersant adsorbed firmly onto the PZN - PZT particles by a strongly chemical bond formed through reaction of alkox y groups on the dispersant molecule with surface hydroxyl of the PZN - PZT powder.