Thermal conductive and flexible silastic composite based on a hierarchical framework of aligned carbon fibers-carbon nanotubes

Ji, Tengxiao; Feng, Yiyu; Qin, Mengmeng; Li, Shuangwen; Zhang, Fei; Lv, Feng; Feng, Wei

doi:10.1016/j.carbon.2018.02.002

Cited by 95 publications

(55 citation statements)

References 30 publications

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“…Intuitively, an addition of given amount of graphene to the composite lowers the transparency almost evenly, without changing the shape of the spectra. This behaviour reflects the property of graphene monolayer which is constant within the optical range 1 , 24 . Thus, we show that our material exhibits a similar feature to mono- or multi-stacked graphene sandwich sample in the UV-IR range.…”

Section: Resultsmentioning

confidence: 71%

“…Literature provides numerous examples of graphene and other nanocarbon material based composites of different architecture and composition, prepared by a variety of methods 7 , 9 – 12 . Examples are as follows: a flexible and/or transparent graphene thin films 13 – 15 ; graphene based 3D structures - graphene foam 16 , 17 or hydrogel 18 – 20 filled with polymer; multi-stacked sandwiches 21 , 22 ; and other nanocarbon/polymer composites 23 , 24 . Remarkably, regardless of the production method, it has been shown that even a small loading of a nanocarbon filler can transfer its extraordinary properties into a composite material.…”

Section: Introductionmentioning

confidence: 99%

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Study of the absorption coefficient of graphene-polymer composites

Żerańska-Chudek

Łapińska

Wróblewska

et al. 2018

Sci Rep

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In this work, we have prepared a series of polydimethylsiloxane (PDMS) composites containing various graphene flakes loadings (0.02–2 wt%), and their broadband optical properties are being investigated. We demonstrate the tunability and evolution of transmittance and reflection spectra of the composites in a wide spectral range (0.4–200 μm) as a function of graphene content. Using these data we derive the broadband wavelength-dependent absorption coefficient (α) values. Our results show that α is roughly constant in the visible and IR ranges, and, surprisingly, is approximately one order of magnitude lower in the terahertz regime, suggesting different terahertz radiation scattering mechanism in our composite. Our material could be useful for applications in optical communication, sensing or ultrafast photonics.

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Section: Resultsmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Study of the absorption coefficient of graphene-polymer composites

Żerańska-Chudek

Łapińska

Wróblewska

et al. 2018

Sci Rep

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show abstract

“…b) The highest thermal conductivity and corresponding weight fraction using CNT hetero structure fillers or networks (1, ref. , 2, ref. 187b, 3, ref.…”

Section: Polymer Composites With Nanostructured Fillers For High Thermentioning

confidence: 99%

“…Other larger scale skeletons have also been used to grow CNTs on their surfaces to prepare heterostructured fillers. For instance, the vertically aligned carbon fibers (CFs) with CNTs grown on their surfaces can increase the κ of silastic (SI) composite to 8.14 W m −1 K −1 with a total carbon load of only 2.86 wt% . A recent paper reported the growth of CNT on a Cu foam, which successfully bridges the holes in the foam, and enables a higher κ of 3.49 W m −1 K −1 in the paraffin composite .…”

Section: Polymer Composites With Nanostructured Fillers For High Thermentioning

confidence: 99%

Thermal Transport in 3D Nanostructures

Zhan

Nie

Chen

et al. 2019

Adv Funct Materials

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This work summarizes the recent progress on the thermal transport properties of 3D nanostructures, with an emphasis on experimental results. Depending on the applications, different 3D nanostructures can be prepared or designed to either achieve a low thermal conductivity for thermal insulation or thermoelectric devices or a high thermal conductivity for thermal interface materials used in the continuing miniaturization of electronics. A broad range of 3D nanostructures are discussed, ranging from colloidal crystals/assemblies, array structures, holey structures, hierarchical structures, to 3D nanostructured fillers for metal matrix composites and polymer composites. Different factors that impact the thermal conductivity of these 3D structures are compared and analyzed. This work provides an overall understanding of the thermal transport properties of various 3D nanostructures, which will shed light on the thermal management at nanoscale.

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“…These conductive composite materials are lightweight, resistant to corrosion, and can be easily adapted to meet the needs of a specific application. Therefore, they may replace the metals in some applications [10][11][12][13]. However, the poor interfacial compatibility between conductive nanomaterial with a polymer matrix results in the poor dispersion [20,21].Among them, graphene, which is a two-dimensional nanomaterial, is receiving growing interest and is widely used in sensors, field-effect transistors, energy, and gas storage, etc.…”

mentioning

confidence: 99%

Properties of Graphene-Thermoplastic Polyurethane Flexible Conductive Film

et al. 2020

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Flexible conductive films were prepared via a convenient blending method with thermoplastic polyurethane (TPU) as matrix and nanocrystalline cellulose (NCC) modified chemically reduced graphene oxide (RGO/NCC) as the conductive fillers. The relationships between the electrical and thermal properties as well as the tensile strength and electrothermal response performance of the composite film and the mass content of reduced graphene oxide (RGO) and the initial TPU concentration were systematically investigated. The experimental results show that the resistivity of the composite film with the mass content of RGO/NCC of 7 wt% and an initial TPU concentration of 20 wt% is the minimum of 8.1 Ω·mm. However, the thermal conductivity of composite film with mass content of RGO/NCC of 5 wt% and the initial TPU concentration of 30 wt% reaches a maximum of 0.3464 W·m−1·K−1, which is an increase of 56% compared with pure TPU. The tensile strength of the composite films with mass contents of RGO of 3 wt% prepared with the initial TPU concentrations of 20 wt% reaches the maximum of 43.2 MPa, which increases by a factor of 1.5 (the tensile strength of the pure TPU is 28.9 MPa). The composite conductive film has a fast electrothermal response. Furthermore, superhydrophobic composite conductive films were prepared by immersing the composite conductive film into fluorinated decyl polyhedral oligomeric silsesquioxane (F-POSS) ethanol solution. The water contact angle of the superhydrophobic composite conductive film reaches 158.19° and the resistivity of the superhydrophobic composite film slightly increases and still has good conductivity.

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Thermal conductive and flexible silastic composite based on a hierarchical framework of aligned carbon fibers-carbon nanotubes

Cited by 95 publications

References 30 publications

Study of the absorption coefficient of graphene-polymer composites

Study of the absorption coefficient of graphene-polymer composites

Thermal Transport in 3D Nanostructures

Properties of Graphene-Thermoplastic Polyurethane Flexible Conductive Film

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