Polystyrene/Montmorillonite Nanocomposites: Study of the Morphology and Effects of Sonication Time on Thermal Stability

Table 2

The chemical composition of raw montmorillonite.

SiO2	Al2O3	Fe2O3	CaO	MgO	Na2O	K2O	TiO2	Impurities
70.30%	15%	7.75%	1.60%	2.30%	1.45%	1.20%	0.30%	0.10 wt.%