Thermal conductivity of polyurethane composites containing nanometer- and micrometer-sized silver particles

Iqbal, Muhammad Waseem; McCullough, Michael E.; Harris, Adam; Eichhorn, S. Holger

doi:10.1007/s10973-012-2412-5

Cited by 15 publications

(9 citation statements)

References 18 publications

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“…Indeed, the thermal stability and the glass-forming ability increase with the [21]. Moreover, the introduction of silver in polyurethane composites improves and increases both the thermal conductivity and the stability in comparison with a reference polyurethane sample without silver [22]. In Ag-As-Se chalcogenide glasses, the enthalpy of primary crystallization decreases with increasing Ag content, accompanied by an increase of the activation energy of primary crystallization and the thermal stability of the supercooled liquid, which suggests a change of the crystallization mechanism [23].…”

Section: Page 3 Of 20mentioning

confidence: 99%

Thermal investigations of Ti and Ag-doped bioactive glasses

et al. 2014

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To cite this version:Eric Wers, Hassane Oudadesse, Bertrand Lefeuvre, Bruno Bureau, Odile Merdrignac-Conanec. Thermal investigations of Ti and Ag-doped bioactive glasses. Thermochimica Acta, Elsevier, 2014, 580, pp.79-84 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.Page 1

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Section: Page 3 Of 20mentioning

confidence: 99%

Thermal investigations of Ti and Ag-doped bioactive glasses

et al. 2014

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“…Costa and co-works 63 described an increase of 50% in the thermal conductivity related to polyurethane by using 5.0 wt % of boron nitride as nanofiller. Iqbal et al 64 observed increases of up to 330% in thermal conductivity with 15 In the epoxy composites, it was observed increases up to 203%, with 1.0 wt % of hybrid MoS 2 /h-BN when compared to pure epoxy, which indicates that for elastomeric polyurethane the effect is still 3.7 times more pronounced. This difference probably is associated to the mobility of the polymeric chains in the elastomeric PU, 39 allowing a more effective heat transfer in comparison with the epoxy thermoset structure that has lower degree of chain mobility.…”

Section: Resultsmentioning

confidence: 94%

“…Costa and co‐works described an increase of 50% in the thermal conductivity related to polyurethane by using 5.0 wt % of boron nitride as nanofiller. Iqbal et al . observed increases of up to 330% in thermal conductivity with the addition of 15 wt % of silver nanoparticles with 0.8 µm of size.…”

Section: Resultsmentioning

confidence: 99%

Enhanced thermal conductivity and mechanical properties of hybrid MoS₂/h‐BN polyurethane nanocomposites

Ribeiro

Trigueiro

Lopes

et al. 2018

J of Applied Polymer Sci

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Nanocomposites based on molybdenum disulfide (MoS2), hexagonal boron nitride (h‐BN) and hybrid MoS2/h‐BN nanofillers with different wt % in elastomeric polyurethane (PU) were studied with respect to their microstructure, thermal and mechanical properties. Tensile tests showed increases up to 80% in Young`s modulus for both h‐BN and hybrid MoS2/h‐BN composites. These results agree with dynamic mechanical analysis tests, which confirm an increase of up to 106% in storage modulus for hybrid MoS2/h‐BN with 0.5 wt % content. When the hybrid MoS2/h‐BN nanofillers were incorporated into the polymeric matrix, increases up to 102% in crosslink density were observed, indicating that strong interactions between the hybrid nanofillers and PU were established. However, the most important synergistic effect between the mixture of MoS2 and h‐BN nanoadditives was the increase of up to 752% in thermal conductivity with respect to neat polymer. Therefore, hybrid composites based in two‐dimensional MoS2/h‐BN nanofillers with multifunctional attributes can be applied in advanced polymeric materials that require high mechanical and thermal performance. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46560.

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“…A standard approach to improve thermal conductivity is to incorporate thermally conductive fillers. Traditionally, inorganic materials with a high intrinsic thermal conductivity like aluminum oxide (Al 2 O 3 ), boron nitride (BN), or metals like copper and silver are used . In the last few years, basic research has also focused on nanoscaled fillers such as carbon nanotubes (CNT), nanodiamonds or BN nanotubes …”

Section: Introductionmentioning

confidence: 99%

“…Traditionally, inorganic materials with a high intrinsic thermal conductivity like aluminum oxide (Al 2 O 3 ), boron nitride (BN), or metals like copper and silver are used. [2][3][4][5] In the last few years, basic research has also focused on nanoscaled fillers such as carbon nanotubes (CNT), nanodiamonds or BN nanotubes. [6][7][8][9][10] While much research has been conducted on composite materials with a variety of micro-and nanoparticles to enhance the thermal conductivity, these materials cannot be used for many applications in optical device packaging, because of non-transparency.…”

Section: Introductionmentioning

confidence: 99%

Transparent Silicone Calcium Fluoride Nanocomposite with Improved Thermal Conductivity

Schneider

Lüthi

Albrecht

et al. 2014

Macro Materials & Eng

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Heat dissipation is an important issue in many electronic devices and therefore materials showing high thermal conductivity are required for their construction and packaging. The intrinsically low thermal conductivity of polymeric materials can be improved when employing (nano-) composites; however, the required high filler content then renders these materials opaque. This paper reports on a composite material that combines high transparency and improved thermal conductivity by using calcium fluoride (CaF 2 ) particles in a silicone elastomer. The refractive index of the silicone matrix is matched to the filler material, light scattering is prevented, and transparent composites with enhanced thermal conductivity at modest filler content (starting at 0.2 volume fraction) are obtained.

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Thermal conductivity of polyurethane composites containing nanometer- and micrometer-sized silver particles

Cited by 15 publications

References 18 publications

Thermal investigations of Ti and Ag-doped bioactive glasses

Thermal investigations of Ti and Ag-doped bioactive glasses

Enhanced thermal conductivity and mechanical properties of hybrid MoS₂/h‐BN polyurethane nanocomposites

Transparent Silicone Calcium Fluoride Nanocomposite with Improved Thermal Conductivity

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Thermal conductivity of polyurethane composites containing nanometer- and micrometer-sized silver particles

Cited by 15 publications

References 18 publications

Thermal investigations of Ti and Ag-doped bioactive glasses

Thermal investigations of Ti and Ag-doped bioactive glasses

Enhanced thermal conductivity and mechanical properties of hybrid MoS2/h‐BN polyurethane nanocomposites

Transparent Silicone Calcium Fluoride Nanocomposite with Improved Thermal Conductivity

Contact Info

Product

Resources

About

Enhanced thermal conductivity and mechanical properties of hybrid MoS₂/h‐BN polyurethane nanocomposites