Thermal conductivity and mechanical durability of graphene composite films containing polymer-filled connected multilayer graphene patterns

Bi, Jian Cheng; Yun, Hyesun; Cho, Minsong; Kwak, Min Jung; Ju, Byeong−Kwon; Kim, Youngmin

doi:10.1016/j.ceramint.2022.03.049

Cited by 9 publications

(3 citation statements)

References 31 publications

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“…By utilizing polymers as exible matrix materials and incorporating llers with high thermal conductivity, the thermal conductivity of composites can be signicantly enhanced. [19][20][21][22] Through further structural optimization, the llers can be aligned in a specic direction, resulting in high thermal conductivity in that particular orientation. [23][24][25][26] Materials with an oriented structure can be obtained through a variety of methods (Fig.…”

Section: Introductionmentioning

confidence: 99%

Enhanced thermal management in electronic devices through control-oriented structures

Cheng,

Guo,

Cai

et al. 2024

J. Mater. Chem. A

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Section: Introductionmentioning

confidence: 99%

Enhanced thermal management in electronic devices through control-oriented structures

Cheng,

Guo,

Cai

et al. 2024

J. Mater. Chem. A

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“…The utilization of graphene polymer composites as drug delivery material [ 46 ], antifoaming polymer-modified cement composites [ 47 ], preparation of conductive materials [ 48 , 49 ], ecological treatment of water [ 50 ] and many others is based on the structural distributions of holes and electrons [ 51 ], whose densities are crucial elements for the scavenging efficiency and the gap depths determines the bonding strength. The graphene oxides as well as the reduced graphene oxides are preferentially used in the formulation of various complex structures such as smart hydrogels [ 52 ], protective films [ 53 ], nanofibers [ 54 ], nanobiosensors [ 55 ] or resistant scaffolds [ 56 ].…”

Section: Introductionmentioning

confidence: 99%

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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“…To address these issues, heat sources such as chips are attached on heat sinks using thermal interface materials (TIMs) to dissipate the heat. Composites filled with thermally conductive (TC) materials such as AlN [2], Al 2 O 3 [3], h-BN [4][5][6], and carbon allotropes [7,8] are widely used as TIMs because of their high thermal conductivity. Given that air trapping hampers the heat transfer from heat sources to heat sinks, softer TIMs, which readily wet the surfaces of the components, are required to dissipate the heat efficiently.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and peeling behavior of thermally conductive pressure-sensitive adhesive films with embedded graphite composite patterns

Oh,

Baek,

Yun

et al. 2023

Funct. Compos. Struct.

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Thermal interface materials (TIMs) have been widely employed to address the thermal issues arising in electronics. Given that heat generated at heat sources is dissipated into heat sinks through TIMs, the softer they are, the more efficient the heat transfer is. In this paper, a thermally conductive pressure-sensitive adhesive film (gr-PSA film) in which graphite composites patterns were embedded was fabricated and its thermal conductivity and peeling behavior were investigated. Because of its low storage modulus (2.4 × 104 Pa), a mixture of soft polyurethane acrylate, butyl acrylate, and 2-ethylhexyl acrylate was used to fabricate a pressure-sensitive adhesive. The in-plane and through-plane thermal conductivity of the gr-PSA film were measured as 1.56 (± 0.37) Wm−1K−1 and 0.25 (± 0.03) Wm−1K−1, respectively. The peeling behavior of the gr-PSA tape was investigated by a 90º peel test and the results were compared with simulation results obtained by cohesive zone modeling implemented in the finite element method. Both results show that the peel force oscillated when the gr-PSA tape was peeled. Because the gr-PSA tape comprises alternating stiff and compliant segments, more force is needed peeling when bending the stiff segments.

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Thermal conductivity and mechanical durability of graphene composite films containing polymer-filled connected multilayer graphene patterns

Cited by 9 publications

References 31 publications

Enhanced thermal management in electronic devices through control-oriented structures

Enhanced thermal management in electronic devices through control-oriented structures

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

Fabrication and peeling behavior of thermally conductive pressure-sensitive adhesive films with embedded graphite composite patterns

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