Influence of Silanization Treatment on Thermomechanical Properties of Multiwalled Carbon Nanotubes: Poly(methylmethacrylate) Nanocomposites

Table 1

Results of dynamical mechanical analysis for three different samples of neat PMMA, PMMA with 1.0 wt.% of unfunctionalized CNTs (u-CNTs) and 1.0 wt.% of silanized carbon nanotubes, sCNTs.

Sample	𝐸^′(30°C) (GPa)	𝐸^′(90°C) (GPa)	𝑇𝑔 °C (Tan delta maximum)
Pmma1	1.24	3.9 MPa	92
Pmma2	1.49	26 MPa	100
Pmma3	1.65	0.519	101
Pmma (average)	1.46	0.183	97
uCNT composite1	2.41	1.25	105
uCNT composite 2	2.95	0.925	102
uCNT composite 3	3.30	1.94	110
uCNT (average)	2.88	1.37	105
sCNT composite 1	3.60	2.06	117
sCNT composite 2	4.06	2.55	123
sCNT composite 3	4.50	2.90	126
sCNT (average)	3.87	2.50	122