Thermal characterization of Al2O3 and ZnO reinforced silicone rubber as thermal pads for heat dissipation purposes

Sim, L. C.; Ramanan, Sutapa Roy; Ismail, Hanafi; Seetharamu, K. N.; Goh, Teck Joo

doi:10.1016/j.tca.2004.12.024

Cited by 441 publications

(251 citation statements)

References 22 publications

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“…8 Goh et al prepared Al 2 O 3 and ZnO filled silicone rubber in which approximately 70% of the thermal conductivity enhancement was achieved at 10 vol% of the filler loading. 9 The improvement of the thermal conductivity has been explored for various systems including BN in polyethylene, ZnO in silicone rubber, metal oxides in ethylene vinyl acetate (EVA), modified ZnO in EVA, and ZnO in ethylene glycol. 10,11 Due to the excellent thermal conduction behavior of CNTs, they are also used to enhance the thermal conductivity of polymeric composites not only for improving thermal conductivity but also electric conductivity and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Thermal Conductivity of Poly(dimethyl siloxane) Composites Filled with Boron Nitride and Carbon Nanotubes

Ha¹,

Hong²,

Kim³

et al. 2013

Polymer Korea

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In order to enhance the thermal conductivity of poly(dimethyl siloxane) (PDMS), boron nitride (BN) and carbon nanotubes (CNTs) were incorporated as the thermally conductive fillers. The amount of BN was increased from 0 to 100 phr (parts per hundred rubber) and the amount of CNTs was increased from 0 to 4 phr at a fixed amount of the boron nitride (100 phr). The thermal conductivity of the composites increased with an increasing concentration of BN, but the incorporation of CNTs had only a slight effect on the enhancement of thermal conductivity. Unexpectedly, the thermal degradation of the composites was accelerated by the addition of CNTs in 100 phr BN filled PDMS. Activation energy for thermal decomposition of the composites was calculated using the Horowitz-Metzger method. The curing behavior, electrical resistivity, and mechanical properties of PDMS filled with BN and CNTs were investigated.

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Section: Introductionmentioning

confidence: 99%

Improvement of Thermal Conductivity of Poly(dimethyl siloxane) Composites Filled with Boron Nitride and Carbon Nanotubes

Ha¹,

Hong²,

Kim³

et al. 2013

Polymer Korea

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“…All disktype specimens prepared in the PTFE mold were 1.2 mm thick with diameters of 15 mm. In order to measure the thermal conductivity, the composites samples were prepared following the conditions reported elsewhere [23]. Furthermore, all samples were polished using Sic sandpaper purchased from R&B Inc. (South Korea) and sand cloth wetted with 1 µm of polycrystalline diamond suspension purchased from Allied High Tech Products, Inc. (USA) in order to smoothen the surfaces.…”

Section: Resultsmentioning

confidence: 99%

“…In contrast, other functional groups of silane coupling agents such as amine, thiohydroxy, ethylene, epoxy, etc., can remain intact. Consequently, the interfacial interactions between the remaining functional groups of substrates and the polymer matrix cause increases in the dispersion of carbon materials [20][21][22][23].…”

Section: Characterizationmentioning

confidence: 99%

Effect of surface treatment of graphene nanoplatelets for improvement of thermal and electrical properties of epoxy composites

Kim¹,

Kim²,

Baeck³

et al. 2015

Carbon letters

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In this study, in order to improve the thermal and electrical properties of epoxy/graphene nanoplatelets (GNPs), surface modifications of GNPs are conducted using silane coupling agents. Three silane coupling agents, i.e. 2-(3,4-epoxycyclohexyl)-ethyltrimethoxysilane (ETMOS), 3-glycidoxypropyltriethoxysilane (GPTS), and 3-glycidoxypropyltrimethoxysilane (GPTMS), were used. Among theses, GPTMS exhibits the best modification performance for fabricating GNP-incorporated epoxy composites. The effect of the silanization is evaluated using transmission electron microscopy (TEM), scanning electron microscopy, thermogravimetric analysis, and energy dispersive X-ray spectroscopy. The electrical and thermal conductivities are characterized. The epoxy/silanized GNPs exhibits higher thermal and electrical properties than the epoxy/raw GNPs due to the improved dispersion state of the GNPs in the epoxy matrix. The TEM microphotographs and Turbiscan data demonstrate that the silane molecules grafted onto the GNP surface improve the GNP dispersion in the epoxy.

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“…But the thermal conductivity and mechanical properties of organic silicon materials are relatively low, so the inorganic substances usually need to be added in organic matrix to improve its thermal conductivity and refraction [8][9][10]. The method to improve the thermal conductivity and the mechanical properties of organic silicon are effective, but there are also defects.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nano-ZrO2 on Properties of Room Temperature Vulcanization Phenyl Silicone Rubber

Yang¹,

Gao²,

Liang³

et al. 2014

Proceedings of the 2015 International Conference on Material Science and Applications

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Abstract. In this study, nano-ZrO 2, which was treated by silane couple agent, incorporated in phenyl silicone rubber at low concentration (≤3.0%) and cured by Room Temperature Vulcanized (RTV) method. The effects of different additive amount of nano-ZrO 2 on the mechanical properties, thermal conductivity and electrical conductivity of phenyl silicone rubber were investigated. The thermal conductivity, tensile strength and volume resistivity of nanocomposites increased firstly and then decreased. The dielectric constant of nanocomposites decreased firstly and then increased with the content of nanoparticles. We were interested to find that phenyl silicone rubber had a maximum thermal conductivity (0.399W/(m· K)), a maximum volume resistivity (1.08×1012 Ω·cm)and a minimum dielectric constant (2.775), with a definite total mass fraction of the particle (0.06%). Compared with the thermal comductivity of pure silicone rubber (0.130W/(m· K)), it increased more than three times in the addition amount of 0.06wt%. Moreover, the silicone rubber keeps a high tensile strength.

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Thermal characterization of Al2O3 and ZnO reinforced silicone rubber as thermal pads for heat dissipation purposes

Cited by 441 publications

References 22 publications

Improvement of Thermal Conductivity of Poly(dimethyl siloxane) Composites Filled with Boron Nitride and Carbon Nanotubes

Improvement of Thermal Conductivity of Poly(dimethyl siloxane) Composites Filled with Boron Nitride and Carbon Nanotubes

Effect of surface treatment of graphene nanoplatelets for improvement of thermal and electrical properties of epoxy composites

Effect of Nano-ZrO2 on Properties of Room Temperature Vulcanization Phenyl Silicone Rubber

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