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Application of Kaolin in Ceramics

May 29, 2024, 11:58 AM
TDDchem.com
6259
The ceramic industry is the earliest and most widely used industry for the application of kaolin. The general dosage is 20% to 30% of the formula. The role of kaolin in ceramics is to introduce Al2O3, which is conducive to the formation of mullite, improving its chemical stability and sintering strength. During sintering, kaolin decomposes into mullite, forming the main work of green body strength, preventing the deformation of products, widening the firing temperature, and also making the green body have a certain whiteness. At the same time, kaolin has certain plasticity, cohesiveness, suspension and bonding ability, which endows porcelain clay and porcelain glaze with good formability, making porcelain clay body conducive to turning, grouting and forming. If used in wires, it can increase insulation and reduce dielectric loss.