Influence of phase and morphology on thermal conductivity of alumina particle/silicone rubber composites

Cheng, J.P.; Liu, T.; Zhang, J.; Wang, B. B.; Ying, Jia; Liu, F.; Zhang, X. B.

doi:10.1007/s00339-014-8606-x

Cited by 58 publications

(21 citation statements)

References 40 publications

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“…The thermal management of electronics requires elastomeric materials with high thermal conductivities between rigid surfaces of electronics and metal-plate heat sinks to minimize thermal resistance. Therefore, thermal pads based on thermally conductive elastomer nanocomposites have found numerous applications in thermal interface management for electronic devices [2,11,12]. Thermal pads offer good thermal performance without the mess A c c e p t e d M a n u s c r i p t associated with thermal grease and thus saves time by accelerating the assembly process [248].…”

Section: Elastomeric Heat Sinks and Thermal Interface Managementmentioning

confidence: 99%

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Transport performance in novel elastomer nanocomposites: Mechanism, design and control

Guo

Tang

Zhang

2016

Progress in Polymer Science

138

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Section: Elastomeric Heat Sinks and Thermal Interface Managementmentioning

confidence: 99%

“…Thermally conductive elastomer nanocomposites can possess a combination of high thermal conductivity and high elasticity. Therefore, thermally conductive elastomer nanocomposites exhibit unique features in many important applications, such as soft thermal pads for electronics, for which thermal management is critical [2,11,12].…”

Section: Introductionmentioning

confidence: 99%

Transport performance in novel elastomer nanocomposites: Mechanism, design and control

Guo

Tang

Zhang

2016

Progress in Polymer Science

138

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“…The elliptical flat morphology of Al 2 O 3 particles can be clearly seen from Figure 1E,F. In Figure 1G, the XRD pattern of the Al 2 O 3 particles is consistent with the XRD pattern of highly crystalline Al 2 O 3 , indicating the highly crystalline of Al 2 O 3 particles good thermal conductivity of filler . The characteristic peaks of the Al 2 O 3 particles shown in Figure 1G are consistent with the characteristic peaks of the α‐Al 2 O 3 , indicating that the Al 2 O 3 used in the experiment is an α‐Al 2 O 3 and has good thermal conductivity.…”

Section: Resultsmentioning

confidence: 90%

“…It is mass produced by reduction of graphene oxide (layer number: 3‐5) by a solution method. Alumina (Al 2 O 3 ) powder (DCA‐05W, diameter: 5.5 ± 0.5 μm, density: 3.90 g cm −3 , surface area: 1.06 m 2 g −1 ) was purchased from Dongchao New (Dongguan) Materials Technology Co, Ltd, and it is a kind of crystalline stable α‐crystalline Al 2 O 3 with high thermal conductivity . PLA pellets (4032D, density: 1.24 g cm −3 , Mw: 170 000) used as the matrix in this study is commercially available material from Nature Work (USA) LLC.…”

Section: Experimental Workmentioning

confidence: 97%

High thermal conductivity polylactic acid composite for 3D printing: Synergistic effect of graphene and alumina

Jiang

Yang

et al. 2020

Polymers for Advanced Techs

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With the continuous development of the electronics industry, in order to meet the requirements of electronic equipment to reduce the size and increase power consumption, the development of high thermal conductivity materials is crucial. In this study, thermally conductive polylactic acid (PLA) composites were prepared by constructing graphene and alumina (Al 2 O 3 ) hybrid filler network, and it was further successfully used in additive manufacturing. Due to the synergistic effect of Al 2 O 3 and graphene, the resulting composite achieved the thermal conductivity of 2.4 Wm −1 K −1 with 70 wt% Al 2 O 3 and 1 wt% graphene, which are superior to data reported in the literature in the same filler condition. The Al 2 O 3 and graphene hybrid filler network reduced the agglomeration of graphene and the thermal contact resistance between the fillers, thereby leading a faster cooling rate. Furthermore, the obtained thermally conductive PLA composite has good thermal stability at a normal temperature. The PLA composite powder obtained by the cryogenic pulverization can be used in the laser sintering additive manufacturing process to prepare a heat conductive material with a complicated shape.

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“…CO and CO 2 are also generated at elevated temperature to hinder the formation of conductive carbonization passage . Alumina material has not only good insulation property but also high thermal conductivity . With alumina in HTVSR, a heat transfer network is formed, which can enhance the thermal conductivity of silicone rubber and reduce its surface temperature .…”

Section: Introductionmentioning

confidence: 99%

Comparison of four commonly used high temperature vulcanized silicone rubber formulas for outdoor insulator and their regional adaptability

Lin

Wang

Yin

et al. 2019

J of Applied Polymer Sci

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High temperature vulcanized silicone rubber (HTVSR) insulators are widely used in transmission lines. In this article, four formulas [fumed silica and precipitated silica as reinforcing agent, alumina trihydrate (ATH) and alumina as flame retardant, and Fe2O3 and Fe3O4 as colorant] widely used in the production of HTVSR insulators were investigated by performing a series of laboratory experiments. The surface morphologies of silicone rubber, mechanical characterization (hardness, tensile property, and tear strength), electrical properties (volume resistivity, dielectric property, and breakdown strength), hydrophobicity and its transfer property, and thermal property of these four formulas were analyzed. According to the test results, the formula composed of fumed silica, Fe2O3 colorant, and alumina trihydrate (ATH) were excellent in mechanical properties because of more secondary structures, more bound rubber, and uniform dispersion. Therefore, it can be used in strong wind and bird pecking regions. Due to the absence of crystal water, the formula composed of fumed silica, Fe2O3 colorant, and alumina was observed to be excellent in thermal stability and electrical properties, making it suitable for the regions with high temperature and humidity. The formula composed of precipitated silica, Fe3O4 colorant, and ATH was found to be excellent in hydrophobicity transfer characteristics because of more raw rubber and satisfactory performance could be expected when it was applied in polluted regions. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47477.

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Influence of phase and morphology on thermal conductivity of alumina particle/silicone rubber composites

Cited by 58 publications

References 40 publications

Transport performance in novel elastomer nanocomposites: Mechanism, design and control

Transport performance in novel elastomer nanocomposites: Mechanism, design and control

High thermal conductivity polylactic acid composite for 3D printing: Synergistic effect of graphene and alumina

Comparison of four commonly used high temperature vulcanized silicone rubber formulas for outdoor insulator and their regional adaptability

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