Chemistry Reference
In-Depth Information
Table 7.2.
(Continued)
Mechanical
Tensile
strength
(Mpa)
Method
Biopolymer
Elastic
modulus (Mpa)
Conductivity
Ref.
Strain to
failure (%)
Neat chitosan
4250
NA
NA
Wet-spinning
[101]
chitosan/CNTs
10,250
Neat silk
140 ± 2.21
6.18 ± 0.3
5.78 ± 0.65
0.028 S/cm
Electrospin-
ning
[102]
silk/CNTs
4817.24 ± 69.23
44.46 ± 2.1
1.22 ± 0.14
0.144 S/cm
Neat cellulose
13,100 ± 1100
198 ± 25
2.8 ± 0.7
Negligible
Dry-jet wet-
spinning
[103,
104]
cellulose/CNTs
14,900 ± 13 00
257 ± 9
5.8 ± 1.0
3000 S/cm
Neat cellulose
553 ± 39
21.9 ± 1.8
8.04 ± 0.27
Electrospin-
ning
[105]
cellulose/CNT
1144 ± 37
40.7 ± 2.7
10.46 ± 0.33
Carbon Nanotube Composite Application
Great attention has been paid in recent years to applying nanotube composites in vari-
ous fields. Wang and Yeow [106] reviewed nanotubes composites based on gas sen-
sors. These sensors play important role for industry, environmental monitoring, and
biomedicine. The unique geometry, morphology, and material properties of CNTs led
to apply them in gas sensors. There are many topical studies for biological and bio-
medical applications of CNT composites due to its biocompatibility [107]. These com-
ponents promoted biosensors [108], tissue engineering [95], and drug delivery [109]
fields in biomedical technology. On the other hand, light weight, mechanical strength,
electrical conductivity, and flexibility are significant properties of CNTs for aerospace
applications [110].
Kang et al. [111] represented an overview of CNT composite applications includ-
ing electrochemical actuation, strain sensors, power harvesting, and bioelectronics
sensors. They presented appropriate elastic and electrical properties for using na-
noscale smart materials to synthesis intelligent electronic structures. In this context,
Mottaghitalab and coworkers developed polyaniline/SWNTs composite fi ber [112]
and showed high strength, robustness, good conductivity, and pronounced electroac-
tivity of the composite. They presented new battery materials [113] and enhancement
of performance artifi cial muscles [114] by using of these CNT composites.
Thai Ong et al. [115] addressed sustainable environment and green technologies
perspective for CNT applications. These contexts are including many engineering
fi elds such as wastewater treatment, air pollution monitoring, biotechnologies, renew-
able energy technologies, and green nanocomposites.
Sariciftici et al. [116] fi rst time discovered photo induced electron transfer from
CNTs. Later, optical and photovoltaic properties of CNT composites have been stud-
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