Thermal conductivity of aligned CNT/polymer composites using mesoscopic simulation

Zhou, Bing; Luo, Wan; Yang, Jixing; Duan, Xianbao; Wen, Yanwei; Zhou, Huamin; Chen, Rong; Shan, Bin

doi:10.1016/j.compositesa.2016.07.023

Cited by 58 publications

(18 citation statements)

References 40 publications

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“…they tend to distribute in the in-plane alignment of the films. Previous studies show that the thermal conductivity across the alignment direction is smaller than that along the alignment direction [21,22]. Therefore, herein, CNT alignments may also contribute to the limited increase in the thermal conductivities of the composites.…”

Section: Thermal Conductivity Of Cnt-pdms Compositesmentioning

confidence: 82%

Thermoelectric properties of carbon nanotube/silicone rubber composites

Zhen-Wu

2017

Journal of Experimental Nanoscience

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In this paper, we have studied the relevant physical quantities to the figure of merit of carbon nanotube (CNT)/polydimethylsiloxane composites at different loadings, and found that with increasing the CNT loadings, the electrical conductivity jumps several orders in magnitude at 'threshold', followed by a saturated plateau, and the Seebeck coefficient decreases by a small margin, and the thermal conductivity increases somewhat. According to the formula of the figure of merit, it is found that higher loading composites display a larger figure of merit. We hope the present study provides a new path to high-performance flexible thermoelectric materials.

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Section: Thermal Conductivity Of Cnt-pdms Compositesmentioning

confidence: 82%

Thermoelectric properties of carbon nanotube/silicone rubber composites

Zhen-Wu

2017

Journal of Experimental Nanoscience

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“…Nowadays studies have indicated that the addition of fiber to a polymer matrix could influence the thermal conductivity of the composites [10][11][12][13]. Svoboda et al, [10] reported that the thermal conductivity of ethylene-octane copolymer/graphite composite increased by 245% where the fillers was increased from 0 to 50 wt% due to the uniform distribution of the graphit fibers In this research, the author tried to investigate the effect of loading on electro-mechanical properties of the ethylene-butene copolymer (EBC) and Carbon fiber (CF) under elongation/relaxation cycle with a variety of loads.…”

Section: Introductionmentioning

confidence: 99%

A Study on Thermal and Electrical Conductivities of Ethylene-Butene Copolymer Composites with Carbon Fibers

Hamid¹,

Svoboda²,

Svobodová³

2020

Preprint

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The electrical, mechanical and thermal conductivity of ethylene butene copolymer (EBC) composites with carbon fibers were studied. EBC/carbon-fiber composites can be utilized as an electro-mechanical material which is capable of changing it electric resistance with mechanical strain. Carbon fibers were introduced to EBC with different concentrations (5-25 wt%). The results showed that the addition of carbon fibers to EBC could increase the electric resistance up to 10 times. Increasing the load to 2.9 MPa could increase the electric resistance change by 4500% compared 25% fiber sample with pure EBC. It is also noted that the electric resistance of the EBC/CF composites underwent a dramatic increase with raising the strain, for example, the resistance change was around 13 times more at 15% strain in comparison to 5% of strain; The thermal conductivity tests showed that the addition of carbon fibers could increase the thermal conductivity by 40%, from 0.19 to 0.27 (Wm-1K-1). It was also observed that the addition of carbon fibers to EBC could increase the thermal conductivity.

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“…To improve materials' thermal conductivity, a conventional method 8,9 is to add llers into the polymer matrix to form interconnected thermal conductive ller networks. Commonly used llers are BN, 10,11 AlN, 12,13 Si 3 N 4 , 14,15 Al 2 O 3 , [16][17][18] carbon ller, [19][20][21][22] and so on. Because these llers have excellent thermal conductivity, the formed ller networks in the polymer matrix could remarkably improve the thermal conductivity of the composite materials.…”

Section: Introductionmentioning

confidence: 99%