Surface coating method for aluminum hydroxide

At present, the surface coating of ATH is mainly made by dry modification and wet modification. 

1)Dry modification is characterized by the powder raw materials and modifier or dispersant into the specific equipment, adjust the appropriate speed for mixing, so that the modifier coated on the surface of aluminum hydroxide powder, this method is suitable for mass production. 

2)Wet modification is to add the modifier to the prepared aluminum hydroxide slurry with a certain liquid to solid ratio in advance and fully stir and disperse the modification under a certain temperature. This method is characterized by complex operation, uniform surface coating and good modification effect.