Piezoelectric and Dielectric Characterization of MWCNT-Based Nanocomposite Flexible Films

Table 1

Unique mechanical and electrical properties of carbon nanotubes as compared to other electrically conductive materials [30, 61–71].

Material	Density (g/cm^3)	Young’s modulus (TPa)	Yield strength (GPa)	Electrical resistivity (10 × 10^−8 Ohm·m)	Electrical conductivity (10 × 10^6 S/m)
Single-walled carbon nanotube (bundles)	1.3–2	0.9–1.1 (variation due to tube diameter)	3–25 (variation due to tube diameter)	1.0–10.0	1–10
Multiwalled carbon nanotubes (bundles)	1.3–2	0.8–1.5 (variation due to the number of tubes)	20–60 (variation due to the number of tubes)	1.0–10.0	1–10
Silver	10.4	0.083	0.054	1.6	63
Copper	8.9	0.125	0.069	1.7	59.6
Stainless Steel	7.8	0.2	4.1	73.0–78.0	2.0–8.5
Carbon fiber	1.7–2	0.2–0.6	1.7–5	80.0–163.0	1.45
Gold	19.4	0.076–0.081	0.10–0.22	2.3	44.2
Aluminum	2.7	0.069	0.007–0.011	2.7	36.9