Multifunctional Epoxy/Nanocomposites Based on Natural Moroccan Clays with High Antimicrobial Activity: Morphological, Thermal and Mechanical Properties

Table 1

Mineralogical, chemical composition, and physical properties of the clay samples.

Mineralogical composition	A1	A2	A3	A4	A5
	Qz, Kaol, Chl, Il/Musc, Il/Sm, Py, Cal	Qz, Kaol, Chl, Il/Musc, Il/Sm, Py, Cal	Qz, Kaol, Chl, Il/Musc, Py, Cal	Qz, Kaol, Musc, Il, Feld, Cal, Dol	Qz, Kaol, Il, Goe
Chemical composition (% wt)
SiO2	54.50	53.60	53.60	42.60	62.70
TiO2	0.85	0.84	0.87	0.44	0.79
Al2O3	27.4	26.5	26.00	11.00	21.30
Fe2O3	4.89	5.61	5.95	2.32	4.95
MnO	0.07	0.13	0.12	0.04	0.11
MgO	1.76	2.05	2.19	3.29	0.84
CaO	0.31	0.69	1.02	18.80	0.33
Na2O	1.24	1.50	1.68	0.82	0.87
K2O	1.92	2.10	2.06	1.30	1.67
P2O5	0.23	0.18	0.17	0.24	0.06
L.O.I.	6.65	6.58	6.15	18.70	6.12

Qz: quartz; Chl: chlorite; Il/Musc: illite/muscovite; Kaol: kaolinite; Py: pyrophyllite; Fld: feldspars; Cal: calcite; Dol: dolomite; Goe: goethite; Il/Sm: illite/smectite.