Development of highly thermoconductive epoxy composites

Miyazaki, Yasuo; Nishiyama, T.; Takahashi, Hiroyuki; Katagiri, Junichi; Takezawa, Yoshitaka

doi:10.1109/ceidp.2009.5377902

Cited by 15 publications

(4 citation statements)

References 7 publications

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“…Shen [110] reported a polyethylene (PE) material with ultrahigh λ value of 104 W/mK, ascribed to be stretched into PE fibers with the diameter between 50 and 500 nm, far above that of the original PE matrix, also more than some metals. (c) Synthesizing rigid chain or small molecules easy to crystallize or introducing liquid crystal structure and other regular structure units in the molecular chains, thus improving the λ values of polymers [111]. Takezawa [95] synthesized two epoxy monomers with crystalline structures, 4,4′-biphenol diglycidyl ether (BPE) and 3,3′,5,5′-tetramethyl-4,4′-biphenol diglycidyl ether (TMEn), and aromatic diamine (DDM) as a curing agent.…”

Section: Fabrication Methods Of Intrinsic Thermally Conductive Polymersmentioning

confidence: 99%

A review on thermally conductive polymeric composites: classification, measurement, model and equations, mechanism and fabrication methods

Yang

Liang

et al. 2018

Adv Compos Hybrid Mater

305

124

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With the fast-developing miniaturization and integration of microelectronics packaging materials, ultrahigh-voltage electrical devices, light-emitting diodes (LEDs), and in areas which require good heat dissipation and low thermal expansion, the investigations on the polymeric composites with highly thermal conductivities and excellent thermal stabilities are urgently required, which would be beneficial to transferring the heat to the outside of the products, finally to effectively avoid substantial overheating and prolong their working life. Our article reviews recent progress in the classification, measurement methods, model and equations, mechanisms, commonly used thermally conductive fillers, and the correlative fabrication methods for the thermally conductive polymeric composites, aiming to understand and grasp how to enhance the λ value effectively. And future perspectives, focusing scientific problems and technical difficulties of the present thermally conductive polymeric composites are also described and evaluated.

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Section: Fabrication Methods Of Intrinsic Thermally Conductive Polymersmentioning

confidence: 99%

A review on thermally conductive polymeric composites: classification, measurement, model and equations, mechanism and fabrication methods

Yang

Liang

et al. 2018

Adv Compos Hybrid Mater

305

124

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“…In thermal applications, the often low thermal conductivity of the polymeric matrix is typically increased by dispersing in the host matrix inorganic fillers, such as aluminium nitride (AlN) [1,2], boron nitride (BN) [3] and carbon nanotubes [4], or more specifically, ceramic fillers, such as aluminum oxide (Al2O3) [5]. Another way is to design a new material where the material orientation is controlled [6,7]. When fillers are used, to determine their influence on the thermal conductivity of nanocomposites, it is required to set up models that predict the behavior of the thermal conductivity as a function of several parameters [8].…”

Section: Introductionmentioning

confidence: 99%

Effect of volume-fraction dependent agglomeration of nanoparticles on the thermal conductivity of nanocomposites: Applications to epoxy resins, filled by SiO2, AlN and MgO nanoparticles

Machrafi

Lebon

Iorio

2016

Composites Science and Technology

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Abstract.A thermodynamic model for transient heat conduction in ceramic-polymer nanocomposites is proposed. The model takes into account particle's size, particle's volume fraction, and interface characteristics with emphasis on the effect of agglomeration of particles on the effective thermal conductivity of the nanocomposite.The originality of the present work is its basement on extended irreversible thermodynamics, combining nano-and continuum-scales without invoking molecular dynamics. The model is compared to experimental data using the examples of SiO2, AlN and MgO nanoparticles embedded in epoxy resin. The analysis is limited to spherical nanoparticles. The dependence of the degree of agglomeration with respect of the volume fraction of particles is also discussed and a power-law relation is established through a kinetic mechanism and experiments performed in our laboratory. This relation is used in 2 our theoretical model, resulting into a good agreement with experiments. It is shown that the effective thermal conductivity may either increase or decrease with the degree of agglomeration.

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“…Fukushima et al [20] and Miyazaki et al [21] have developed a novel material design to improve the thermal conductivity, where isotropic resins align 'themselves', by controlling the higher order structure. The thermal conductivity values of the newly developed resin were up to 5 times higher than those of conventional epoxy resins (ERs), because the mesogens form highly ordered crystal-like structures, which suppress phonon scattering.…”

Section: Introductionmentioning

confidence: 99%

Modelling of the thermal conductivity in polymer nanocomposites and the impact of the interface between filler and matrix

Kochetov¹,

Korobko²,

Andritsch³

et al. 2011

J. Phys. D: Appl. Phys.

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In this paper the thermal conductivity of epoxy-based composite materials is analysed. Twoand three-phase Lewis-Nielsen models are proposed for fitting the experimental values of the thermal conductivity of epoxy-based polymer composites. Various inorganic nano-and microparticles were used, namely aluminium oxide, aluminium nitride, magnesium oxide and silicon dioxide with average particle size between 20 nm and 20 µm. It is shown that the filler-matrix interface plays a dominant role in the thermal conduction process of the nanocomposites. The two-phase model was proposed as an initial step for describing systems containing 2 constituents, i.e. an epoxy matrix and an inorganic filler. The three-phase model was introduced to specifically address the properties of the interfacial zone between the host polymer and the surface modified nanoparticles.

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Development of highly thermoconductive epoxy composites

Cited by 15 publications

References 7 publications

A review on thermally conductive polymeric composites: classification, measurement, model and equations, mechanism and fabrication methods

A review on thermally conductive polymeric composites: classification, measurement, model and equations, mechanism and fabrication methods

Effect of volume-fraction dependent agglomeration of nanoparticles on the thermal conductivity of nanocomposites: Applications to epoxy resins, filled by SiO2, AlN and MgO nanoparticles

Modelling of the thermal conductivity in polymer nanocomposites and the impact of the interface between filler and matrix

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