A review of dielectric polymer composites with high thermal conductivity

Huang, Xingyi; Jiang, Pingkai; Tanaka, Toshikatsu

doi:10.1109/mei.2011.5954064

Cited by 619 publications

(391 citation statements)

References 37 publications

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“…Figure 4 shows the ratio de- ), with respect to the filler particle's length scale. This clearly illustrates that the length scale associated with the filler particles is crucial, and that for small particles the interface resistance dominates, as has been widely acknowledged in the literature [4,18,22,23,45,55,56]. More importantly, Figure 4 shows that the usage of highly conductive fillers, i.e., with thermal conductivity on the order of 1000 W·m -1 ·K -1 would require even larger filler particles before the interface resistance ceases to dominate.…”

Section: Characterization Techniquessupporting

confidence: 52%

“…A simple rule of mixtures argument would suggest that the thermal conductivity of a composite should be simply determined by the polymer thermal conductivity κ polymer the filler material's thermal conductivity κ filler and the respective fractions of each phase by volume where, φ is the filler's fraction, via Equation (1): (1) This is the simplest model one can employ for a multiphase system [12,13]. Given that there are many low cost filler materials with high thermal conductivity (e. g., on the order of 10-1,000 W·m -1 ·K -1 ) [14][15][16][17][18] that is at least two orders of magnitude higher than that of amorphous polymers, a body of research has been devoted to homogeneously disperse filler materials into polymer matrices [1,4,[18][19][20]. The problem, as illustrated in Figure 1 [4,13,14], however, is that although some substantial enhancement relative to the polymer is observed, the thermal conductivities of the composites are far from the predictions given by Equation (1) (shown as the diagonal line in Figure 1).…”

Section: Introductionmentioning

confidence: 99%

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Graphite-high density polyethylene laminated composites with high thermal conductivity made by filament winding

Lv¹,

Sultana²,

Rohskopf³

et al. 2018

Express Polym. Lett.

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Abstract.The low thermal conductivity of polymers limits their use in numerous applications, where heat transfer is important. The two primary approaches to overcome this limitation, are to mix in other materials with high thermal conductivity, or mechanically stretch the polymers to increase their intrinsic thermal conductivity. Progress along both of these pathways has been stifled by issues associated with thermal interface resistance and manufacturing scalability respectively. Here, we report a novel polymer composite architecture that is enabled by employing typical composites manufacturing method such as filament winding with the twist that the polymer is in fiber form and the filler in form of sheets. The resulting novel architecture enables accession of the idealized effective medium composite behavior as it minimizes the interfacial resistance. The process results in neat polymer and 50 vol% graphite/polymer plates with thermal conductivity of 42 W·m -1 ·K -1 (similar to steel) and 130 W·m -1 ·K -1 respectively.

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Section: Characterization Techniquessupporting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Graphite-high density polyethylene laminated composites with high thermal conductivity made by filament winding

Lv¹,

Sultana²,

Rohskopf³

et al. 2018

Express Polym. Lett.

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“…This is because LDPE has only a small volume of crystal lattice to transport thermal energy phonons (i.e., elastic vibration waves in crystal lattices). Moreover, phonons are susceptible to scattering in amorphous regions, where many free volumes, defects and boundaries exist (Huang, Jiang et Tanaka, 2011;Tsekmes et al, 2013). The thermal conductivity of LDPE/OmPOS (99/1) is decreased by 6%.…”

Section: Thermal Conductivitymentioning

confidence: 99%

“…OmPOSS dispersion (Huang et al, 2012;Huang, Jiang et Tanaka, 2011;Tsekmes et al, 2013). High thermal conductivities are desirable for power cable insulation.…”

Section: Thermal Conductivitymentioning

confidence: 99%

Polyethylene/polyhedral oligomeric silsesquioxanes composites: Electrical insulation for high voltage power cables

Guo

Fréchette

David

et al. 2017

IEEE Trans. Dielect. Electr. Insul.

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Finally, I would like to thank those who can never be thanked enough, my family, for their endless concern, selfless love, and unwavered supports. COMPOSITES À BASE DE POLYÉTHYLÈNE AVEC ADDITIFS DE POLYHEDRAL OLIGOMERIC SILSESQUIOXANES : ISOLATION ÉLECTRIQUE POUR DES CÂBLES DE PUISSANCEMeng GUO Globalement, les résultats expérimentaux indiquent qu'aucune méthode de fabrication n'est efficace pour fabriquer des nanodiélectriques de PE/solide-POSS. Relativement aux propriétés thermiques, l'addition de POSS a pu entraîner une augmentation de la conductivité thermique jusqu'à 8%. De plus, il a été observé que l'ajout de POSS ne modifie pas la stabilité thermique du PE dans une atmosphère d'azote et ne cause que peu de changements dans le comportement de fusion du PE, le comportement de cristallisation du PE et le degré de cristallinité du PE. En ce qui concerne les propriétés diélectriques, tous les composites PE/POSS ont des résistances à l'érosion face aux décharges partielles qui sont bonifiées, s'améliorant de 6% à 61%. Cette amélioration renforce l'isolation envers des dommages cumulatifs provoqués par la dégradation électrique dans les conditions de service. De plus, la présence du POSS n'affecte que peu les réponses diélectriques à la température ambiante : les constantes diélectriques et les pertes diélectriques pour les composites sont, respectivement, 2.25-2.35 et généralement 10 RÉSUMÉ, soit des valeurs semblables aux valeurs associées au PE. Conséquemment, ces valeurs sont encourageantes pour une application dans les câbles, qui nécessitent de faibles pertes et de faibles constantes diélectriques. À des températures élevées, l'influence des POSS sur les réponses diélectriques du PE demeurent faible, excepté pour quelques augmentations des pertes dans PE/IO1 (E) et PE/OM5 (E) à des fréquences plus basses que 10 Hz, et pour des transports de charges (la diffusion et la conduction) renforcées dans PE/IO5 (E). À l'inverse des performances d'amélioration relative à la résistance à l'érosion, l'utilisation des POSS n'améliore presque pas la tension de claquage à court terme du PE; au mieux, les tensions de claquage des composites PE/POSS demeurent semblables à celles du PE.Parmi les trois méthodes employées, le broyage mécanique a été plus efficace pour disperser 5 wt% OibPOSS, la dissolution chimique et l'extrusion ont été plus efficaces pour disperser 1 wt% OibPOSS, et l'extrusion a été plus efficace pour disperser IoPOSS. Il a été observé que les méthodes de fabrication ont peu d'effet sur la conductivité thermique et les réponses diélectriques, excepté lorsque les distributions résultantes sont particulières, comme dans les cas PE/IoPOSS : il semblerait que de l'alignement possible dans le cas PE/IO1 (XSB) et la quasi-connexion possible dans le cas PE/IO5 (E) pourrait expliquer l'augmentation de la conductivité thermique pour PE/IO1 (XSB) et l'intensification du transport de charges pour XI PE/IO5 (E). Cependant, il a été trouvé que la méthode de fabrication avait un effet sur la résistance à l'érosion : l...

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“…Polymers with high dielectric loss also have high leakage current since they convert electrical into thermal energy [44]. However, the electric field at breakdown is not improved or even slightly decreased due to the addition of nanofillers with different dielectric constant than that of the polymer matrix [8,44,45]. Figures 9 and 10 show a slightly different behavior of the analyzed samples under positive and negative dc polarity tests.…”

Section: Dielectric Testsmentioning

confidence: 99%

Improvement of insulation effectiveness of natural rubber by adding hydroxyl-functionalized barium titanate nanoparticles

González

Riba

Custal³

et al. 2017

IEEE Trans. Dielect. Electr. Insul.

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A review of dielectric polymer composites with high thermal conductivity

Cited by 619 publications

References 37 publications

Graphite-high density polyethylene laminated composites with high thermal conductivity made by filament winding

Graphite-high density polyethylene laminated composites with high thermal conductivity made by filament winding

Polyethylene/polyhedral oligomeric silsesquioxanes composites: Electrical insulation for high voltage power cables

Improvement of insulation effectiveness of natural rubber by adding hydroxyl-functionalized barium titanate nanoparticles

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