Interface effect on thermal conductivity of carbon nanotube composites

Nan, Ce‐Wen; Liu, Gang; Lin, Yuan‐Hua; Li, Ming

doi:10.1063/1.1808874

Cited by 745 publications

(432 citation statements)

References 14 publications

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“…Using the analytical modeling presented in Section 2.2 [12,13], the thermal conductivity of the composite, K e (R K ) is plotted in Fig. 5a.…”

Section: Analytical Modeling Resultsmentioning

confidence: 99%

“…From these simulations, the interfacial thermal resistant values, R K , for a range of functionalization conditions are calculated. In Section 3.3, these R K values are then used with analytical modeling [12,13] to predict the TC of the composites. By systematically varying the CNT length, volume fraction, thermal conductivity and the interfacial thermal resistance, key structureproperty relationships were established and related directly to changes in the predicted TC of the composite.…”

Section: Resultsmentioning

confidence: 99%

“…This model assumes a random orientation of the dispersed nanotubes within the polymer matrix and uses an effective medium approach. This approach yields a formula for calculating the TC of carbon nanotube composites [12]. This is summarized by Eqs.…”

Section: Analytical Modeling Of the Thermal Conductivitymentioning

confidence: 99%

“…These interfacial resistance values from the heat transfer simulations are then used in an analytical formula [12] to calculate the TCs of nanocomposites. While molecular modeling yields R K values, an analytical model is applied in order to calculate the thermal conductivity of the nanocomposite material.…”

Section: Analytical Modeling Of the Thermal Conductivitymentioning

confidence: 99%

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Modeling of interfacial modification effects on thermal conductivity of carbon nanotube composites

Clancy¹,

Gates²

2006

Polymer

209

126

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ABSTRACT:The effect of functionalization of carbon nanotubes on the thermal conductivity of nanocomposites has been studied using a multi-scale modeling approach. These results predict that grafting linear hydrocarbon chains to the surface of a single wall carbon nanotube with covalent chemical bonds should result in a significant increase in the thermal conductivity of these nanocomposites. This is due to the decrease in the interfacial thermal (Kapitza) resistance between the single wall carbon nanotube and the surrounding polymer matrix upon chemical functionalization. The nanocomposites studied here consist of single wall carbon nanotubes in a bulk poly(ethylene vinyl acetate) matrix. The nanotubes are functionalized by end-grafting linear hydrocarbon chains of varying length to the surface of the nanotube. The effect which this functionalization has on the interfacial thermal resistance is studied by molecular dynamics simulation. Interfacial thermal resistance values are calculated for a range of chemical grafting densities and with several chain lengths. These results are subsequently used in an analytical model to predict the resulting effect on the bulk thermal conductivity of the nanocomposite.

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“…Using the analytical modeling presented in Section 2.2 [12,13], the thermal conductivity of the composite, K e (R K ) is plotted in Fig. 5a.…”

Section: Analytical Modeling Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Analytical Modeling Of the Thermal Conductivitymentioning

confidence: 99%

Section: Analytical Modeling Of the Thermal Conductivitymentioning

confidence: 99%

See 2 more Smart Citations

Modeling of interfacial modification effects on thermal conductivity of carbon nanotube composites

Clancy¹,

Gates²

2006

Polymer

209

126

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“…In many literatures, it has been confirmed that the interface in the composites play a significant role in their thermal conductivity [236][237][238][239][240][241]. Heat transfer at the interface of two different materials mostly happens with a temperature discontinuity [242].…”

Section: Thermal Conductivitymentioning

confidence: 99%

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

Kashfipour

Mehra

Zhu

2018

Adv Compos Hybrid Mater

176

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Composite materials and especially polymer composites are widely used in daily life and different industries due to their vastly different properties and design flexibility. It is known that the properties of the composites are strongly related to the properties of its constituents. However, it has been reported in many studies, experimentally and by simulations, that the characteristics of the composites do not follow the rule of mixing. It means that in addition to properties of the constituents, there are other parameters affecting the final physicochemical properties of composites. The interfacial interactions between fillers and host is one of the factors which can strongly affect the properties of the composite. In this review, we summarized the type of interactions between the constituents, their improvement techniques, interaction measurement methods, and the effects of interfacial interactions on thermal, mechanical, and electrical properties of composites.

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Carbon Nanotubes, Multi‐Walled

Andrews

Weisenberger

Qian

et al. 2005

Encyclopedia of Inorganic Chemistry

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Well‐aligned carbon multiwalled nanotubes (MWNTs) have been synthesized continuously by pyrolysis of xylene–ferrocene mixtures. To study the MWNT growth mechanism, two‐step processes and various chemical vapor deposition (CVD) parameters have been employed. Transmission electron microscopy observations support a tip‐root growth model of MWNTs by floating catalytic CVD. Hydrocarbon analyzer is used to measure the total carbon balance within the CVD reactor, while mass spectra analyses monitor the concentrations of hydrocarbon species, which helps to understand the catalyst deactivation and pyrolysis chemistry of xylene over catalyst Fe(C) nanoparticles. MWNTs can be treated to attach required functional groups on nanotube walls and/or caps for specific applications by various methods including acid oxidation, reduction, addition of radicals, and cycloadditions. Carbon nanotubes (CNTs) have shown promising applications in advanced CNT–polymer composites. To realize CNT potentials to enhance the properties of matrices, several important issues such as dispersion, orientation, interfacial effects, and processing parameters have been addressed. The dependence of the CNT–polymer composite properties on CNT diameter, length, and interfacial effects has been used to develop models to predict and optimize variables for maximum composite performance. CNT–polymer composites have been developed for enhanced mechanical, electrical, and thermal properties, which have wide applications for the next generation of truly multifunctional materials as well as lighter weights and increased manufacturability over current materials.

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Interface effect on thermal conductivity of carbon nanotube composites

Cited by 745 publications

References 14 publications

Modeling of interfacial modification effects on thermal conductivity of carbon nanotube composites

Modeling of interfacial modification effects on thermal conductivity of carbon nanotube composites

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

Carbon Nanotubes, Multi‐Walled

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