Influence of the Surfactant Nature on the Occurrence of Self-Assembly between Rubber Particles and Thermally Reduced Graphite Oxide during the Preparation of Natural Rubber Nanocomposites

Table 2

Mechanical properties of nanocomposites of NR and TRGO (3 wt.%) dispersed in DTAB or SDS. Surfactant concentrations were 0.5 CMC, 1.0 CMC, and 1.5 CMC.

Sample	Stress at 100% strain (MPa)	Stress at 300% strain (MPa)	Stress at 500% strain (MPa)	Maximum stress (MPa)	Deformation at break (%)
NR	0.49 ± 0.01	0.83 ± 0.02	1.39 ± 0.10	13.99 ± 1.01	892 ± 6
SDS 0.5 CMC/TRGO (3 wt.%)/NR	0.49 ± 0.02	1.04 ± 0.03	2.22 ± 0.17	4.55 ± 0.20	640 ± 26
SDS 1.0 CMC/TRGO (3 wt.%)/NR	0.47 ± 0.1	0.98 ± 0.06	2.23 ± 0.13	8.67 ± 0.68	837 ± 48
SDS 1.5 CMC/TRGO (3 wt.%)/NR	0.56 ± 0.02	0.91 ± 0.02	1.73 ± 0.06	7.04 ± 0.69	792 ± 78
DTAB 0.5 CMC/TRGO (3 wt.%)/NR	0.43 ± 0.02	0.89 ± 0.01	1.68 ± 0.04	4.45 ± 0.36	759 ± 50
DTAB 1.0 CMC/TRGO (3 wt.%)/NR	0.40 ± 0.02	0.89 ± 0.01	1.69 ± 0.03	4.61 ± 0.13	788 ± 40
DTAB 1.5 CMC/TRGO (3 wt.%)/NR	0.65 ± 0.01	1.28 ± 0.02	3.02 ± 0.07	15.14 ± 1.04	806 ± 23