Understanding Of Oil Absorption Capacity Of Aluminum Hydroxide Packing

Aluminum hydroxide filler is more and more widely used in additives, and its oil absorption has become an important technical indicator of additives. Let's take a look at it.

1. The particle shape and particle size distribution of the aluminum hydroxide filler will have a great influence on the oil absorption. As an additive, under the premise of the same particle shape, the lower the oil absorption, the lower the viscosity during use.

2. At present, there is no unified method for measuring oil absorption in the domestic aluminum hydroxide packing industry. Foreign companies in the same industry use refined linseed oil or DOP (dioctyl phthalate) as the measuring reagent. For example, the German company uses linseed oil, which is measured by the international standard ISO787/5.

3. Under the premise that the particle size distribution is basically the same, the particle shape is the main factor affecting the oil absorption.

Aluminum hydroxide has researched a series of influencing factors such as measurement temperature, stirring time, stirring method, etc., using the international general refined linseed oil and DOP used by foreign companies as the measuring reagents, and established a detection method in line with international standards.