Table 3.

Thermal analysis data of unmodified (Kao and Kao-Na) and modified kaolinite (Kao-CTMA).

Sample	Temperature range, $°C$	Mass loss, %	Residue weight, %
Kao	25–150	1.58	91.69
	450–600	6.73
Kao-Na	25–150	1.45	92.30
	450–600	6.25
Kao-CTMA	25–150	0.83	85.65
	200–300	7.40
	450–600	6.12