TY - JOUR
T1 - Electrical and thermal property enhancement of fiber-reinforced polymer laminate composites through controlled implementation of multi-walled carbon nanotubes
AU - Yamamoto, Namiko
AU - Guzman de Villoria, Roberto
AU - Wardle, Brian L.
N1 - Funding Information:
This work was supported by Airbus S.A.S., Boeing, Embraer, Hexcel, Lockheed Martin, Saab AB, Spirit AeroSystems, Textron Inc., Composite Systems Technology, and TohoTenax through MIT’s Nano-Engineered Composite aerospace STructures (NECST) Consortium. The authors gratefully thank A.M. Marconnet and Prof. K.E. Goodson (MechE, Stanford University) for the comparative thermal measurement and Prof. G. Chen (Mech E, MIT) for assistance with the laser flash technique. Namiko Yamamoto acknowledges the Linda and Richard (1958) Hardy Fellowship.
PY - 2012/11/16
Y1 - 2012/11/16
N2 - Aligned carbon nanotubes (CNTs) are implemented into alumina-fiber reinforced laminates, and enhanced mass-specific thermal and electrical conductivities are observed. Electrical conductivity enhancement is useful for electrostatic discharge and sensing applications, and is used here for both electromagnetic interference (EMI) shielding and deicing. CNTs were grown directly on individual fibers in woven cloth plies, and maintained their alignment during the polymer (epoxy) infiltration used to create laminates. Using multiple complementary methods, non-isotropic electrical and thermal conductivities of these hybrid composites were thoroughly characterized as a function of CNT volume/mass fraction. DC and AC electrical conductivity measurements demonstrate high electrical conductivity of >100. S/m (at 3% volume fraction, ∼1.5% weight fraction, of CNTs) that can be used for multifunctional applications such as de-icing and electromagnetic shielding. The thermal conductivity enhancement (∼1. W/m. K) suggests that carbon-fiber based laminates can significantly benefit from aligned CNTs. Application of such new nano-engineered, multi-scale, multi-functional CNT composites can be extended to system health monitoring with electrical or thermal resistance change induced by damage, fire-resistant structures among other multifunctional attributes.
AB - Aligned carbon nanotubes (CNTs) are implemented into alumina-fiber reinforced laminates, and enhanced mass-specific thermal and electrical conductivities are observed. Electrical conductivity enhancement is useful for electrostatic discharge and sensing applications, and is used here for both electromagnetic interference (EMI) shielding and deicing. CNTs were grown directly on individual fibers in woven cloth plies, and maintained their alignment during the polymer (epoxy) infiltration used to create laminates. Using multiple complementary methods, non-isotropic electrical and thermal conductivities of these hybrid composites were thoroughly characterized as a function of CNT volume/mass fraction. DC and AC electrical conductivity measurements demonstrate high electrical conductivity of >100. S/m (at 3% volume fraction, ∼1.5% weight fraction, of CNTs) that can be used for multifunctional applications such as de-icing and electromagnetic shielding. The thermal conductivity enhancement (∼1. W/m. K) suggests that carbon-fiber based laminates can significantly benefit from aligned CNTs. Application of such new nano-engineered, multi-scale, multi-functional CNT composites can be extended to system health monitoring with electrical or thermal resistance change induced by damage, fire-resistant structures among other multifunctional attributes.
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U2 - 10.1016/j.compscitech.2012.09.006
DO - 10.1016/j.compscitech.2012.09.006
M3 - Article
AN - SCOPUS:84867306723
SN - 0266-3538
VL - 72
SP - 2009
EP - 2015
JO - Composites Science and Technology
JF - Composites Science and Technology
IS - 16
ER -