METHOD FOR MANUFACTURING ALUMINUM HYDROXIDE POWDER

摘要

PURPOSE: Provided is a method for manufacturing aluminum hydroxide powder which improves the fillability in a resin and can be highly filled in a resin. CONSTITUTION: The method comprises the step of grinding raw aluminum hydroxide by using a kneader mixer. The liquid content of the raw aluminum hydroxide is about 30 wt% or less. The raw aluminum hydroxide has a crystal structure of a gibbsite type. The raw aluminum hydroxide has a mean secondary particle size of about 1 micrometer to about 150 micrometer. The ratio of the mean primary particle size to the mean secondary particle size of the raw aluminum hydroxide is about 1/8 to about 1/2. The maximum compression pressure in the kneader mixer is about 0.49 MPa to about 49.0 MPa.