Study on the Synergies of Nanoclay and MWCNTs to the Flame Retardant and Mechanical Properties of Epoxy Nanocomposites

Table 3

Mechanical properties of nanocomposite MWCNTs/nanoclay I.30E/epoxy E 240 when ultrasonic vibrating for 6 hours and mechanical stirring at 7, 8, and 9 hours combined with ultrasonic vibration for 6 hours.

Samples	Tensile strength (MPa)	Flexural strength (MPa)	Compressive strength (MPa)	Impact strength (kJ/m^2)
Neat epoxy resin	55.90	86.75	156.08	7.11
MWCNT/nanoclay (MN)	90.25	106.53	190.01	15.57
MWCNT/nanoclay (7) (MN7)	92.78	110.60	191.48	16.53
MWCNT/nanoclay (8) (MN8)	95.50	115.45	219.10	22.30
MWCNT/nanoclay (9) (MN9)	93.12	112.10	200.56	20.63

Note: MN8 (8-hour mechanical stirring, 6-hour ultrasound).