In the preparation process of some fine powders, some seed crystals are used. What role does the active seed crystal play in the aluminum hydroxide micropowder? What kind of relationship exists between them? Let us refer to Below.
Active seed crystals are aluminum hydroxide crystals with high dispersibility, large surface area and numerous active sites, which are said to be active due to their fast growth rate and uniform growth. However, it depends on its preparation method, conditions, storage time, and the structure of the seed and the particle size of the seed crystal.
Due to the various characteristics of the active seed crystal, its quality and quantity will have an important impact on the strength and decomposition rate of the aluminum hydroxide micropowder. We should control it according to the actual situation.
In the production process, industrial aluminum hydroxide coarse-grain wet grinding is generally used to obtain a special seed crystal slurry, which is added for use when the seed crystal is decomposed. In order to ensure the activity of the seed crystal, the seed slurry can not be stored for more than three days. Since the ground aluminum hydroxide particles become extremely fine, the aluminum hydroxide fine powder has a significant improvement in dispersibility and activity, so the quality will be improved.
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