Journal ArticleDOI
Synergistic improvement of thermal conductivities of polyphenylene sulfide composites filled with boron nitride hybrid fillers
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TLDR
In this paper, the thermally conductive coefficient (λ), dielectric constant (e) and dielectrics loss tangent (tan-δ) values and thermal stabilities were all enhanced with the increasing addition of mBN/nBN hybrid fillers.Abstract:
Hybrid fillers of micrometer boron nitride/nanometer boron nitride (mBN/nBN) were employed to fabricate the highly thermally conductive insulating mBN/nBN/polyphenylene sulfide ((mBN/nBN)/PPS) composites via mechanical ball-milling followed by hot-compression method. The thermally conductive coefficient (λ), dielectric constant (e) & dielectric loss tangent (tan δ) values and thermal stabilities were all enhanced with the increasing addition of mBN/nBN hybrid fillers. The λ value was improved from 0.286 W/mK for pristine PPS matrix to 2.638 W/mK for the (mBN/nBN)/PPS composite with 60 wt% mBN/nBN (mass fraction, 2:1) hybrid fillers. Appropriate addition of the mBN/nBN hybrid fillers played a role of heterogeneous nucleation for PPS matrix. Agari model fitting revealed that the mBN/nBN hybrid fillers could be much easier to form the continuous thermally conductive channels & networks. The corresponding e and tan δ values still maintained relatively lower level of 3.96 and 0.022, respectively. And the corresponding THeat-resistance index (THRI) value was beyond 277.8 °C.read more
Citations
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Boosting the cycling stability of transition metal compounds-based supercapacitors
TL;DR: In this paper, the authors focus on the analysis of recent research breakthroughs in the development of high electrochemical performance supercapacitors using transition metal oxides/hydroxides, sulfides, selenides and phosphides.
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Factors affecting thermal conductivities of the polymers and polymer composites: A review
TL;DR: In this article, a review of thermal conduction mechanisms in polymers and polymer composites is presented, where the effects of different components of polymers on heat transfer are analyzed.
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Significantly enhanced and precisely modeled thermal conductivity in polyimide nanocomposites with chemically modified graphene via in situ polymerization and electrospinning-hot press technology
Yongqiang Guo,Genjiu Xu,Xutong Yang,Kunpeng Ruan,Tengbo Ma,Qiuyu Zhang,Junwei Gu,Junwei Gu,Yalan Wu,Hu Liu,Hu Liu,Zhanhu Guo +11 more
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Porous lignin based poly (acrylic acid)/organo-montmorillonite nanocomposites: Swelling behaviors and rapid removal of Pb (II) ions
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Thermal transport in polymeric materials and across composite interfaces
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References
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Journal ArticleDOI
Graphene-based composite materials
Sasha Stankovich,Dmitriy A. Dikin,Geoffrey Dommett,K. Kohlhaas,Eric Zimney,Eric A. Stach,Richard D. Piner,SonBinh T. Nguyen,Rodney S. Ruoff +8 more
TL;DR: The bottom-up chemical approach of tuning the graphene sheet properties provides a path to a broad new class of graphene-based materials and their use in a variety of applications.
Journal ArticleDOI
Thermal conductivity of carbon nanotubes and their polymer nanocomposites: A review
Zhidong Han,Alberto Fina +1 more
TL;DR: In this article, the status of worldwide research in the thermal conductivity of carbon nanotubes and their polymer nanocomposites is reviewed, as well as the relationship between thermal conductivities and the micro- and nano-structure of the composites.
Journal ArticleDOI
Enhanced thermal conductivity of epoxy-graphene composites by using non-oxidized graphene flakes with non-covalent functionalization.
Sung Ho Song,Kwang Hyun Park,Bo Hyun Kim,Yong Won Choi,Gwang Hoon Jun,Dongju Lee,Byung-Seon Kong,Kyung-Wook Paik,Seokwoo Jeon +8 more
TL;DR: A novel approach is presented to disperse non-oxidized graphene flakes with non-covalent functionalization of 1-pyrenebutyric acid and to fabricate nanocomposites with outstanding thermal conductivity and mechanical properties.
Journal ArticleDOI
Thermal conductivity bounds for isotropic, porous materials
TL;DR: In this paper, it is proposed that the effective thermal conductivity region bounded by the Hashin-Shtrikman bounds may be divided into internal porosity and external porosity regions by the Effective Medium Theory (EMT) equation.
Journal ArticleDOI
Generalized Equation for the Elastic Moduli of Composite Materials
TL;DR: In this article, a generalized equation for the relative elastic moduli of composite materials is proposed by the introduction of a generalized Einstein coefficient and a function which considers the maximum volumetric peak fraction of the filler phase.
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