Table 1. Synthesis Conditions of CMG-Bt & CMG-Bt-Si: Reagent Proportions (wt %) and Swelling Performances in Distilled Water (g/g).

N°	sample	reagent proportions (wt %)			swelling performances (g/g)
		borax	bentonite	fumed silica	FSC	CRC
1	CMG-Bt 01	5	0		34.98	25.87
2	CMG-Bt 02	5	5		37.69	31.59
3	CMG-Bt 03	5	10		38.65	35.45
4	CMG-Bt 04	5	15		35.24	32.2
5	CMG-Bt 05	5	20		33.58	30.29
6	CMG-Bt 06	10	0		46.25	29.33
7	CMG-Bt 07	10	5		67.5	31.58
8	CMG-Bt-Si 01	10	5	3	68.52	33.97
9	CMG-Bt 08	10	10		73.58	39.91
10	CMG-Bt-Si 02	10	10	5	78.63	41.09
11	CMG-Bt 09	10	15		60.11	37.58
12	CMG-Bt-Si 03	10	15	7	71.09	38.89
13	CMG-Bt 10	10	20		56.83	29.66
14	CMG-Bt-Si 04	10	20	10	60.8	30.29
15	CMG-Bt 11	15	0		44.08	28.13
16	CMG-Bt 12	15	5		48.31	34.86
17	CMG-Bt 13	15	10		48.47	33.97
18	CMG-Bt 14	15	15		42.35	37.12
19	CMG-Bt 15	15	20		42.85	36.27
20	CMG-Bt 16	20	0		24.35	18.5
21	CMG-Bt 17	20	5		21.98	17.4
22	CMG-Bt 18	20	10		20.45	20.66
23	CMG-Bt 19	20	15		21.96	17.26
24	CMG-Bt 20	20	20		18.23	14.23