Bridge-graphene connecting polymer composite with a distinctive segregated structure for simultaneously improving electromagnetic interference shielding and flame-retardant properties

Zhou, Juanjuan; Xia, Li; Fang, Quan; Wang, Liang; Qi, Congrui; Zhang, Guangyi; Tan, Zhezhe; Ren, Ben; Yuan, Bihe

doi:10.1016/j.colsurfa.2022.130853

Cited by 20 publications

(7 citation statements)

References 53 publications

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“…Ultimately, GO and MWCNTs of composites cause the burning heat to disperse quickly and form a protective layer that inhibits the release of the combustible gas, which results in good flame-retardant performance. 136 Besides, electromagnetic shielding mainly converts electromagnetic waves into heat energy; conductive filler quickly transmits the generated heat, which is beneficial for application in thermal management. It provides significant choices for creating functional materials that can be used for both high-frequency and high-power electronic devices.…”

Section: Multifunctionalities Of Polymer-based Compositesmentioning

confidence: 99%

Strategies to construct conductive structures of polymer-based electromagnetic wave attenuation composites

Jiang,

Huang

et al. 2024

J. Mater. Chem. A

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Section: Multifunctionalities Of Polymer-based Compositesmentioning

confidence: 99%

Strategies to construct conductive structures of polymer-based electromagnetic wave attenuation composites

Jiang,

Huang

et al. 2024

J. Mater. Chem. A

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“…The segregated conductive networks in CPCs significantly attenuated EMWs through multiple reflections and internal scattering between conductive micro‐interfaces of the insulating polymers, effectively enhancing the material's absorption loss of EMWs. This formed a shielding mechanism dominated by absorption loss to reduce secondary contamination from incident EMWs 201–203 …”

Section: Progress In Structural Design Of Composites For Emi Shieldingmentioning

confidence: 99%

“…This formed a shielding mechanism dominated by absorption loss to reduce secondary contamination from incident EMWs. [201][202][203] The CPCs with segregated structures demonstrated significantly enhanced conductivity, a lower percolation threshold, and superior EMI shielding performance compared to uniform CPCs. 204 Shi et al 199 constructed segregated MWCNTs/Ni networks in poly(l-lactide)/poly (ε-caprolactone) matrix, where the Ni particles were aligned and organized using a low magnetic field.…”

Section: Segregated Structurementioning

confidence: 99%

Recent advances in structural design of conductive polymer composites for electromagnetic interference shielding

Zheng,

Wang,

Zhu

et al. 2023

Polymer Composites

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The proliferation of electronic devices and wireless communication in our daily lives has led to a significant increase in electromagnetic pollution. This issue poses a serious threat to the proper functioning of electronic equipment as well as human health. Therefore, the investigation of materials with superior electromagnetic interference (EMI) shielding capabilities has garnered growing interest. In this paper, the mechanisms of EMI shielding were first introduced briefly. It was noted that the development of advanced EMI shielding materials involved adhering to principles such as minimizing reflection loss, enhancing absorption loss, and incorporating multiple internal reflections. The construction and shielding properties of traditional EMI shielding materials were introduced. Unlike metal materials with high densities and reflection loss, lightweight conductive polymer composites (CPCs) have been the most promising EMI shielding materials. Meanwhile, carbon‐based nanofillers such as carbon nanotubes and graphene nanosheets, along with two‐dimensional transition metal carbonitrides MXenes Ti3C2Tx, have emerged as the most promising and versatile conductive nanofillers for CPCs. The EMI shielding performance and loss mechanism of CPCs with homogeneous structure, segregated structure, laminated structure, and porous structure were introduced in detail. It was noted that the EMI shielding performance could be significantly improved by incorporating multiple structures into the same CPCs, such as a rational combination of segregated and porous structures. Finally, the challenges and development trends of CPCs for EMI shielding applications were discussed.Highlights Mechanisms of EMI shielding were introduced from aspect of energy dissipation. Structure–property of traditional EMI shielding materials was described. EMI shielding performance of CPCs with different structures was summarized. Future challenges and growing trends of CPCs for EMI shielding were discussed. Absorption‐dominated loss and multiple structure design were emphasized.

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“…To address the issues of EMI and thermal accumulation, research on polymer-based composites with excellent thermal conductivity and electromagnetic shielding properties has emerged as a hot topic [4][5][6]. However, polymers inherently exhibit poor thermal conductivity and electromagnetic shielding capabilities, necessitating the incorporation of external fillers to enhance these properties [7][8][9]. Carbon-based fillers are commonly used as fillers for preparing thermally and electrically conductive polymer composites for thermal management and EMI shielding due to their high thermal conductivity and electrical conductivity properties [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Bidirectionally Oriented Carbon Fiber/Silicone Rubber Composites with a High Thermal Conductivity and Enhanced Electromagnetic Interference Shielding Effectiveness

Song,

Fan,

Shi

2023

Materials

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Effective thermal management and electromagnetic shielding have emerged as critical goals in contemporary electronic device development. However, effectively improving the thermal conductivity and electromagnetic shielding performance of polymer composites in multiple directions continues to pose significant challenges. In this work, inspired by the efficiency of interchange bridges in enabling vehicles to pass quickly in multiple directions, we employed a straightforward method to fabricate bidirectionally oriented carbon fiber (CF)/silicone rubber composites with an interchange-bridge-like structure. The high aspect ratio of CFs and their bidirectional orientation structure play a pivotal role in facilitating the formation of thermal and electrical pathways within the composites. Meanwhile, the bidirectionally oriented CF/silicone rubber composites showed a significant enhancement in tensile strength in both the vertical and horizontal directions, attributed to the cross-arrangement of CF arrays within the composites. At a filler content of 62.3 wt%, the bidirectionally oriented CF/silicone rubber composites had a high tensile strength of 6.18 MPa. The composites also exhibited an excellent thermal conductivity of 25.3 W/(m·K) and a remarkable electromagnetic interference shielding effectiveness of 61.6 dB. The bidirectionally oriented CF/silicone rubber composites show potential for addressing thermal management and electromagnetic shielding issues in electronic devices.

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Bridge-graphene connecting polymer composite with a distinctive segregated structure for simultaneously improving electromagnetic interference shielding and flame-retardant properties

Cited by 20 publications

References 53 publications

Strategies to construct conductive structures of polymer-based electromagnetic wave attenuation composites

Strategies to construct conductive structures of polymer-based electromagnetic wave attenuation composites

Recent advances in structural design of conductive polymer composites for electromagnetic interference shielding

Bidirectionally Oriented Carbon Fiber/Silicone Rubber Composites with a High Thermal Conductivity and Enhanced Electromagnetic Interference Shielding Effectiveness

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