Crumpled graphene epoxy nanocomposites modified with polydopamine for advanced semiconductor packaging applications

Sun, Zhijian; Liu, Yifan; Wong, Ryan; Yu, Min‐Feng; Li, Jiaxiong; Moran, Macleary; Kathaperumal, Mohanalingam; Wong, Ching‐Ping

doi:10.1016/j.compscitech.2022.109709

Cited by 6 publications

(2 citation statements)

References 49 publications

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“…In order to further advance the development of the prepared composite films in practical applications, an integrated composite material was designed and prepared. The adhesion performance of composite films has been tested , as well as the electromagnetic shielding effect of the integrated composite material − because these properties are crucial for the practical application prospects of materials. The BN(2)/Al 2 O 3 (1)@POE particles were evenly distributed on the surface of the functional film first, and the integrated composite material is subsequently prepared through a heating press, as illustrated in Figure A.…”

Section: Resultsmentioning

confidence: 99%

Exploring the Impact of Visual Heat Conduction Paths on Thermal Conductivity of Polymer Composites and the Practical Applications

Sun,

Ma,

Zhang

et al. 2024

Langmuir

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The theory of heat conduction paths has been widely recognized and widely studied in the research about the thermal conductivity of thermal conductive polymer composites at present. Encapsulating polymer pellets with thermally conductive fillers and processing them into thermally conductive polymer composites is a simple and effective method for constructing heat conduction paths. It is meaningful to investigate the related heat conduction mechanism of this method. Otherwise, this approach can significantly preserve the performance of the polymer substrate, making it highly valuable for practical material applications. In this work, polyethylene-octene elastomer (POE) pellets were encapsulated with thermal conductive fillers by physical absorption. Subsequently, the composite films containing heat conduction paths were fabricated using the encapsulated POE pellets through a heating press. Alumina (Al 2 O 3 ), boron nitride (BN), and alumina/boron nitride hybrid (Al 2 O 3 /BN) fillers were used to prepare Al 2 O 3 @POE, BN@POE, and BN/Al 2 O 3 @POE composite films to investigate the influence of filler shapes on heat conduction path construction. The influence of the constitute and density of heat conduction paths on the thermal conductivity of composite films was analyzed by infrared thermal imaging, finite element analysis, and thermal resistance theory in detail. Owing to the reserved good adhesion and flexibility of the POE substrate, the composite films could be directly used as thermal interface materials for chip cooling, which presented a good heat dissipation effect. Furthermore, a series of integrated composite materials were prepared by the combination of encapsulated pellets with various functional films (copper foil, aluminum foil, and graphite sheet) through a one-pot heating press, exhibiting a good electromagnetic shielding effect. The performance of the composites and the corresponding preparation method demonstrate the strong significance of this research for practical applications.

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Section: Resultsmentioning

confidence: 99%

Exploring the Impact of Visual Heat Conduction Paths on Thermal Conductivity of Polymer Composites and the Practical Applications

Sun,

Ma,

Zhang

et al. 2024

Langmuir

View full text Add to dashboard Cite

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“…[1][2][3][4][5][6][7][8][9] The addition of fillers provides the overall properties of the composite with new or improved properties. Inorganic clay minerals, [10][11][12] carbon nanotubes, [13][14][15] and graphene [16][17][18] are some examples of fillers that have a high aspect ratio. It has been found that one of their dimensions is in the nanoscale.…”

Section: Introductionmentioning

confidence: 99%

The strength of particulate polymer composite: A new insight on crystallinity and structural morphology

Yazid,

Anwar,

Sabtu

et al. 2023

J of Applied Polymer Sci

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We have demonstrated the significant impact of high density polyethylene (HDPE) crystallinity and structural morphology on the tensile strength of 60/40 NR/HDPE polymer blend composites. Introducing nanoscale Boron Carbide (B4C‐type compounds) fillers noticeably changed the crystallinity and morphology of HDPE, leading to the formation of fine spherulites. Conversely, microscale fillers mainly impacted the crystallinity while preserving a coarse architecture. Although both composites experienced a reduction in crystallinity, the nanocomposites outperformed microcomposites and even the pristine polymer blend in terms of strength, implying the effect of a fine structure. The nanocomposite with a filler loading of 2 wt% exhibited the highest strength. This investigation provides novel insights into the interplay between crystallinity, HDPE structure, and the size of fillers, which heavily influence the strength of polymer blend composites.

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Enhanced mechanical, thermal properties and thermal conductivities of epoxy composites via incorporating graphene oxide‐grafted carbon nanotubes hybrids

Liu,

Zhang,

Fan

et al. 2024

Polymer Composites

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A hetero‐structured hybrid was produced by grafting one‐dimensional (1D) amine‐functionalized multiwalled carbon nanotubes (MWCNTs) onto the basal plane of two‐dimensional (2D) graphene oxide (GO) via an amine‐epoxy ring‐opening reaction, and such hybrid was further applied for reinforcing epoxy composites. Based on this hybrid design, 1D MWCNTs anchored on the 2D GO nanosheets resisted the re‐stacking of GO nanosheets while GO improved the MWCNTs' dispersion state. Attributing to the synergistic effect of GO and MWCNTs, a multi‐dimensional conducting network within epoxy matrix was constructed and efficiently transferred stress and heat between hybrid and matrix. When just 0.5 wt% hybrids were incorporated, the mechanical properties, thermal stability and thermal conductivity of hybrid‐filled epoxy composites were significantly improved, compared with pure epoxies. This work gives a promising method for designing and preparing polymer composites for thermal management and protection applications.Highlights A hetero‐structured hybrid consisting of MWCNTs and GO was obtained. Better dispersion of GO–MWCNTs within matrix was achieved. A multi‐dimensional GO–MWCNTs conducting network in matrix was constructed. Enhanced properties were due to the synergistic effect of GO and MWCNTs. Structural performance of GO and MWCNTs was maximized.

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Crumpled graphene epoxy nanocomposites modified with polydopamine for advanced semiconductor packaging applications

Cited by 6 publications

References 49 publications

Exploring the Impact of Visual Heat Conduction Paths on Thermal Conductivity of Polymer Composites and the Practical Applications

Exploring the Impact of Visual Heat Conduction Paths on Thermal Conductivity of Polymer Composites and the Practical Applications

The strength of particulate polymer composite: A new insight on crystallinity and structural morphology

Enhanced mechanical, thermal properties and thermal conductivities of epoxy composites via incorporating graphene oxide‐grafted carbon nanotubes hybrids

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