Thermal conductivity of a composite medium with a disperse graphene filler

Kompan, M. E.; Kompan, Fedor; Gladkikh, P. V.; Теруков, Е. И.; Rupyshev, V. G.; Chetaev, Yu. V.

doi:10.1134/s1063784211080159

Cited by 10 publications

(8 citation statements)

References 8 publications

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“…107 For foams with the same density, heat radiation can be reduced by reducing cell size or increasing radiation absorption through the addition of infrared light absorbing llers 107 such as carbon black, 108 graphite 30 and graphene. 109 Loeb 104 proposed that the effective radiative thermal conductivity (k) of a spherical cell was:…”

Section: Thermal Insulation Propertiesmentioning

confidence: 99%

“…The thermally conductive ller can increase the thermal conductivity of the insulating matrix, thus increasing the heat ow rate in the matrix. However, Kompan et al 109 showed that the reduction in radiative heat transfer due to the addition of graphene clusters outweighed the increase in heat ow rate of the solid matrix, as long as the matrix material was insulating and the concentration of graphene clusters was lower than the percolation threshold. As a result, low loading of carbon llers can be an efficient way to enhance the thermal insulation properties of polymer composite foams.…”

Section: Thermal Insulation Propertiesmentioning

confidence: 99%

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Polymer nanocomposite foams

et al. 2013

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Polymer nanocomposite foams, polymer foams with nanoparticles, are an intriguing class of materials with unique structure and properties. The shape, size and surface chemistry of nanoparticles can be tailored to control the foam structure, and therefore, foam properties. Nanoparticles also add functionality to polymer foams. In this paper, we briefly review the recent developments in polymer nanocomposites and nanocomposite foams. This is followed by an extensive discussion regarding the role of nanoparticles in foam morphology and properties. Finally, the current and future trends of polymer nanocomposite foams are summarized. Both challenges and opportunities in this field are discussed. LimengChen received a B.S. degree in Materials Science and Engineering from Zhejiang University in Hangzhou, China and a Ph.D. degree in Materials Engineering from Rensselaer Polytechnic Institute. He is currently a R&D Engineer at Cabot Corporation. Deniz Rende is currently working as a post-doctoral researcher at Rensselaer Polytechnic Institute, USA. She received her Ph.D. degree from the Department of Chemical Engineering at Bogazici University, Turkey. Her current research focuses on supercritical uid assisted processing of polymer nanocomposites and foams.

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Section: Thermal Insulation Propertiesmentioning

confidence: 99%

Section: Thermal Insulation Propertiesmentioning

confidence: 99%

Polymer nanocomposite foams

et al. 2013

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“…In these cases few-layer GNS were found to be efficient. 118,123,124 In the works on the preparation and the analysis of properties of PU-GNS composites considered below, mixtures of particles of exfoliated graphene precursors consisting of few-layer GNS and graphene itself were used. At such a value of specic surface, which is inversely proportional to the number of layers, this is also important in terms of application of graphene as a polymer modier.…”

Section: Preparation Methods and Properties Of Graphene And Graphene-...mentioning

confidence: 99%

Nanocomposites based on polyurethanes and carbon nanoparticles: preparation, properties and application

2013

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“…Trying to decrease thermal conductivity of a material by the incorporation of a thermally conductive filler seems to be contradictory. 39 However, Kompan et al 40 showed that the reduction in radiative heat transfer due to the addition of graphene clusters outweighed the increase in heat flow rate of the solid matrix, as long as the matrix material was insulating and the concentration of graphene clusters was lower than the percolation threshold. As a result, low concentration of carbon fillers can be an efficient way to enhance the thermal insulation properties of PUF composites.…”

Section: Thermal Conductivity Of Puf/conductive Filler Compositesmentioning

confidence: 99%

Electrical conductivity andEMIshielding effectiveness of polyurethane foam–conductive filler composites

Kim

Lee

Jang

et al. 2016

J of Applied Polymer Sci

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The morphological, electrical, and thermal properties of polyurethane foam (PUF)/single conductive filler composites and PUF/hybrid conductive filler composites were investigated. For the PUF/single conductive filler composites, the PUF/nickel‐coated carbon fiber (NCCF) composite showed higher electrical conductivity and electromagnetic interference shielding effectiveness (EMI SE) than did the PUF/multiwall carbon nanotube (MWCNT) and PUF/graphite composites; therefore, NCCF is the most effective filler among those tested in this study. For the PUF/hybrid conductive fillers PUF/NCCF (3.0 php)/MWCNT (3.0 php) composites, the values of electrical conductivity and EMI SE were determined to be 0.171 S/cm and 24.7 dB (decibel), respectively, which were the highest among the fillers investigated in this study. NCCF and MWCNT were the most effective primary and secondary fillers, and they had a synergistic effect on the electrical conductivity and EMI SE of the PUF/NCCF/MWCNT composites. From the results of thermal conductivity and cell size of the PUF/conductive filler composites, it is suggested that a reduction in cell size lowers the thermal conductivity of the PUF/conductive filler composites. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44373.

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Thermal conductivity of a composite medium with a disperse graphene filler

Cited by 10 publications

References 8 publications

Polymer nanocomposite foams

Polymer nanocomposite foams

Nanocomposites based on polyurethanes and carbon nanoparticles: preparation, properties and application

Electrical conductivity andEMIshielding effectiveness of polyurethane foam–conductive filler composites

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