Study on the thermal properties of some inorganically modified pre-baked clay samples

The paper is focused on the influence of some inorganic modifiers on the thermal stability of the clay-inorganic intercalates. The inorganic modifiers used were NaOH and KOH. Solvent intercalation procedure was used. Clay was modified at 150, 500 and 750 °C, separately with NaOH and KOH. TGDTA study was performed to evaluate the thermal stability of the resultant intercalates. Intercalation with NaOH and KOH performed at 150 °C showed significant mass loss. Intercalation with NaOH performed at 500 and 750 °C, separately showed less mass loss compared to the ones prepared at 150 °C. and hence exhibited thermal stability. In case of intercalation performed with KOH at 500 and 750 °C, separately, the mass loss was comparable to the original pre-baked clay.