China Supply Washed Kaolin 325mesh for Ceramic

Kaolin is an amorphous mineral with a white or yellowish color.

It has strong hygroscopicity and ion exchange, and can quickly adsorb solids, liquids and gases.

Kaolin has a high degree of plasticity and plasticity, and can be formed under appropriate moisture conditions.

It is stable at high temperatures and can withstand acid and alkali environments.

In the ceramic industry, the application of kaolin is earlier than other industries, and the amount is also very large, usually accounting for 20% to 30% of the formula. Kaolin can increase the content of Al2O3 in ceramics, and the generation process of mullite is easier to carry out, thus improving the stability and sintering strength of ceramics. In ceramic firing, the decomposition of kaolin into mullite is the process of forming a body frame, which can make the firing temperature range wider, the ceramic body is not easy to deformation, and improve the whiteness of the ceramic. At the same time, kaolin itself also has the characteristics of cohesiveness, plasticity, bonding, suspension, etc., which can improve the formability of porcelain mud porcelain glaze, and is more conducive to the processing process of turning, grouting, and ceramic forming.