Computational modeling of the thermal conductivity of single-walled carbon nanotube–polymer composites

2008 ◽  
Vol 19 (6) ◽  
pp. 065702 ◽  
Author(s):  
Hai M Duong ◽  
Dimitrios V Papavassiliou ◽  
Kieran J Mullen ◽  
Shigeo Maruyama
Author(s):  
Hai M. Duong ◽  
Dimitrios V. Papavassiliou ◽  
Namiko Yamamoto ◽  
Brian L. Wardle

A computational model is developed to study the thermal conductivity of single-walled carbon nanotube (SWNT)–polymer composites. An off-lattice Monte Carlo simulation was used to model the effects of interfacial resistance at the SWNT-polymer interface and at the SWNT-SWNT contact on the heat flow for different orientations of SWNTs dispersed in the polymers. A primary focus is the non-isotropic heat conduction in aligned-SWNT polymeric composites that are of interest for various heat conduction applications such as microelectronic heat sinks, and also because this geometry constitutes a representative volume element (RVE) of CNT-reinforced polymer matrices in hybrid advanced composites under development. The simulation is an extension of a previous model for heat transfer in nanocomposites in that it now considers SWNT-SWNT contact. The simulation results of the developed model are compared with those of the previous model. The effects of SWNT orientation, SWNT-SWNT contact, weight fraction and thermal boundary resistance on the effective conductivity of composites are quantified. The present model is a useful tool for the prediction of the thermal conductivity within a wide range of volume fractions of the SWNTs, including the case when SWNTs are in contact with each other.


2018 ◽  
Vol 10 (39) ◽  
pp. 33373-33379 ◽  
Author(s):  
Bora Yoon ◽  
Seon-Jin Choi ◽  
Timothy M. Swager ◽  
Gary F. Walsh

Carbon ◽  
2005 ◽  
Vol 43 (6) ◽  
pp. 1213-1221 ◽  
Author(s):  
E. Tamburri ◽  
S. Orlanducci ◽  
M.L. Terranova ◽  
F. Valentini ◽  
G. Palleschi ◽  
...  

2003 ◽  
Vol 788 ◽  
Author(s):  
Diana-Andra Borca-Tasciuc ◽  
Yann LeBon ◽  
Claire Nanot ◽  
Gang Chen ◽  
Theodorian Borca-Tasciuc ◽  
...  

ABSTRACTThis work reports temperature dependent thermal and electrical properties characterization of long (mm size) single-walled carbon nanotube strands. Electrical properties are measured using a 4-probe method. Thermal conductivity and specific heat capacity are determined using an AC driven, self-heating method. Normalized values of resistivity, thermal conductivity, specific heat, thermal diffusivity, and the temperature coefficient of resistance are reported. The trends observed in the temperature dependent properties are comparable with previously published data on multi-walled carbon nanotube strands measured with a similar technique.


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