A review of three-dimensional graphene networks for use in thermally conductive polymer composites: construction and applications

Wu, Ni; Che, Sai; Li, Huawei; Wang, Chaonan; Tian, Xiaojuan; Li, Yongfeng

doi:10.1016/s1872-5805(21)60089-6

Cited by 33 publications

(19 citation statements)

References 90 publications

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“…The other two main peaks may be ascribed to carboxyl acid (1700 cm −1 ) [62] and 1100 cm −1 identified as C-O units [61]. The dissimilarity between the spectra of graphene oxide and reduced graphene oxide was reported [36]; it is relevant in the region around 3400 cm −1 , where rGO presents a very prominent peak like our material.…”

Section: Structural Qualification Of Reduced Graphene Oxidementioning

confidence: 67%

Packaging Materials Based on Styrene-Isoprene-Styrene Triblock Copolymer Modified with Graphene

Zaharescu¹,

Banciu²

2023

Polymers

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This study presents the improved stabilization effects of graphene on a polymer substrate, namely a styrene-isoprene-styrene triblock copolymer (SIS) which creates opportunities for long-term applications and radiation processing. The added graphene has a remarkable activity on the protection of polymer against their oxidation due to the penetration of free macroradical fragments into the free interlayer space. The chemiluminescence procedure used for the evaluation of the progress of oxidation reveals the delaying effect of oxidative degradation by the doubling extension of oxidation induction time, when the material formulation containing graphene is oxidized at 130 °C. The pristine polymer that is thermally aged requires an activation energy of 142 kJ mol−1, while the modified material needs 148, 158 and 169 kJ mol−1, for the oxidative degradation in the presence of 1, 2 and, respectively, 3 wt% of graphene. The contribution of graphene content (1 wt%) on the stability improvement of SIS is demonstrated by the increase of onset oxidation temperature from 190 °C for neat polymer to 196 °C in the presence of graphene and to 205 °C for the polymer stabilized with graphene and rosemary extract. The addition of graphene into the polymer formulations is a successful method for enlarging durability instead of the modification of receipt with synthesis antioxidants. The presumable applications of these studied materials cover the areas of medical wear, food packaging, commodities, sealing gaskets and others that may also be included through the products for nuclear power plants.

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Section: Structural Qualification Of Reduced Graphene Oxidementioning

confidence: 67%

Packaging Materials Based on Styrene-Isoprene-Styrene Triblock Copolymer Modified with Graphene

Zaharescu¹,

Banciu²

2023

Polymers

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“…The well-known reinforcement effect of carbon fillers in polymer composites is linked to improved electrical and thermal conductivity as well as mechanical properties of matrix polymers. Many studies have been published on the structural and physical properties of polymer composites containing various types of carbon that range significantly in size, geometry, and physical properties, such as carbon nanotubes, graphene, carbon black, natural and artificial graphite, and so on [10][11][12]. Extensive research has been conducted to study the feasibility of using polymeric compounds modified with micrometric materials for application in various fields of industry due to the increasing need for lightweight products with superior thermal and mechanical capabilities [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Effect of Graphite Filler Type on the Thermal Conductivity and Mechanical Behavior of Polysulfone-Based Composites

2022

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The goal of this study was to create a high-filled composite material based on polysulfone using various graphite materials. Composite material based on graphite-filled polysulfone was prepared using a solution method which allows the achievement of a high content of fillers up to 70 wt.%. Alongside the analysis of the morphology and structure, the thermal conductivity and mechanical properties of the composites obtained were studied. Structural analysis shows how the type of filler affects the structure of the composites with the appearance of pores in all samples which also has a noticeable effect on composites’ properties. In terms of thermal conductivity, the results show that using natural graphite as a filler gives the best results in thermal conductivity compared to artificial and expanded graphite, with the reduction of thermal conductivity while increasing temperature. Flexural tests show that using artificial graphite as a filler gives the composite material the best mechanical load transfer compared to natural or expanded graphite.

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“…Some reports have taken advantage of this effect by embedding 3D graphene networks into nonporous polymer matrix composites to greatly improve the thermal conductivity and heat dissipation properties. [38,39] Although materials, which combine enhanced thermal conductivities and mechanical properties, are often desired, there also exist applications requiring high stiffness and/or strength combined with high thermal insulation properties and high thermal stability. These property combinations can be challenging to formulate since fundamental relationships between mechanical properties and thermal insulation are inversely related when increasing porosity is used as the primary strategy for decreasing thermal conductivity.…”

Section: Introductionmentioning

confidence: 99%

Microchannel insulating foams comprising a multifunctional epoxy/graphene‐nanoplatelet nanocomposite

Schmid

Veluswamy

Klose

et al. 2022

Polymer Engineering & Sci

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Graphene nanomaterials have demonstrated simultaneous enhancement of both the thermal and mechanical properties of many base polymer systems, but for application as a reinforcement in multifunctional thermally insulating polymer foam the graphene additive must not significantly increase the macroscopic thermal conductivity. In an effort to study and decouple these mechanical and thermal properties, low loadings of reduced graphene oxide nanoplatelets have been added into epoxy formulations to comprise the matrix structure of hollow microchannel nanocomposite foams. Substantial improvements of 226% were achieved in the microchannel foam specific flexural modulus at only 0.15% graphene nanoplatelet loading without compromising the foam flexural strength and while also maintaining the low thermal conductivity of the baseline epoxy foam material. These results support the use of these nanocomposite foams as mechanically reinforced thermal insulation, with the addition of the graphene nanoplatelets potentially providing additional multifunctional improvements to the foam such as reduced UV-radiation transmittance, improved electrical surface conductivity for diminished static charge buildup, and/or lowering of the coefficient of thermal expansion for enhanced structural stability in extreme environments. This particular combination of multifunctional properties makes these materials well suited as high-performance structural thermal insulation materials in support of next generation space system applications.

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A review of three-dimensional graphene networks for use in thermally conductive polymer composites: construction and applications

Cited by 33 publications

References 90 publications

Packaging Materials Based on Styrene-Isoprene-Styrene Triblock Copolymer Modified with Graphene

Packaging Materials Based on Styrene-Isoprene-Styrene Triblock Copolymer Modified with Graphene

Effect of Graphite Filler Type on the Thermal Conductivity and Mechanical Behavior of Polysulfone-Based Composites

Microchannel insulating foams comprising a multifunctional epoxy/graphene‐nanoplatelet nanocomposite

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