Multifunctional carbon fiber@NiCo/polyimide films with outstanding electromagnetic interference shielding performance

Li, Jianwei; Zhang, Xuanning; Ding, Yuanqing; Zhao, Shengyao; Ma, Zhonglei; Zhang, Hongming; He, Xiaohui

doi:10.1016/j.cej.2021.131937

Cited by 111 publications

(60 citation statements)

References 55 publications

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“…The VACNT@GP/PDMS composites exhibit a comparable mechanical strength (13.3 MPa) along with higher EMI SE/ t (1900–5000 dB cm –1 ), which almost outperforms all of the currently available polymer-based EMI shielding materials by far (the details are provided in Table S2). ,,,− ,, …”

Section: Resultsmentioning

confidence: 99%

“…For example, EMI shielding materials with excellent Joule-heating performance can be potentially used to cover a device surface as an outer protective layer, providing the multifunctions of anti-icing, heat preservation, and EMI elimination. , Flexible EMI shields are highly desirable in wearable electronics for shielding EMI and protecting human health. , In this regard, the polymers are believed to be the most promising alternatives for applications in high-performance flexible electronic systems because of their highly flexibility, excellent design freedom, and low cost compared to the metal-, ceramic-, and carbon-based materials. , Unfortunately, most of the polymers are highly electrically insulating, leading to the absence of EMI shielding and Joule-heating capability. Conductive fillers such as carbonaceous materials ( e.g ., carbon nanotubes (CNTs), , graphene, − carbon filaments, carbon fibers, and biomass-derived carbon), transition metal carbides (MXenes), , and metal nanowires − have been used to enhance the electrical conductivity of polymers. However, the achievement of high EMI shielding effectiveness (SE) and Joule-heating performance is usually at the sacrifice of significant deterioration of flexibility and processibility of the polymer composites, since high electrical conductivity strongly relies on high loading of the conductive fillers that cause severe agglomeration and poor filler–matrix interfacial bonding. ,, …”

Section: Introductionmentioning

confidence: 99%

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Vertically Aligned Carbon Nanotube@Graphene Paper/Polydimethylsilane Composites for Electromagnetic Interference Shielding and Flexible Joule Heating

Feng

Song

et al. 2022

ACS Appl. Nano Mater.

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High-performance electromagnetic interference (EMI) shielding and thermal management materials with ultraflexibility, high strength, outstanding stability under mechanical deformation, and low cost are urgently demanded for modern integrated electronic and telecommunication systems. However, the creation and application of such desirable materials is still a potent challenge. Herein, we develop such a high-performance multifunctional multilayer composite, known as vertically aligned carbon nanotube@graphene paper/polydimethylsilane (VACNT@GP/PDMS), which involves the in situ growth of VACNTs onto GPs, vertical stacking of VACNT@GP layers, and infiltration of PDMS. The EMI shielding and mechanical properties of multilayer composites can be dramatically increased by increasing the number of VACNT@GP layers. Benefiting from the conduction loss in highly conductive GPs and polarization of huge VACNT–PDMS–VACNT microcapacitor networks, the multilayer composite with four VACNT@GP layers exhibits a superior EMI SE of 106.7 dB over a broad bandwidth of 32 GHz, covering the entire X-, Ku-, K-, and Ka-bands, which far suppresses the values of most of the reported EMI shielding materials. Moreover, the multilayer composites show excellent thermal management performance such as a high Joule-heating temperature at low supplied voltages, rapid response time, and sufficient heating stability. In addition, remarkable flexibility, high tensile strength (up to 13.4 MPa), and super stability under mechanical deformation (nearly no EMI SE degradation after repeatedly bending 10,000 times) are also discovered. These excellent comprehensive properties, along with the ease of low-cost mass production, pave the way for the practical applications of multilayer VACNT@GP/PDMS composites in EMI shielding and thermal management.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Vertically Aligned Carbon Nanotube@Graphene Paper/Polydimethylsilane Composites for Electromagnetic Interference Shielding and Flexible Joule Heating

Feng

Song

et al. 2022

ACS Appl. Nano Mater.

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“…In recent years, the application of electromagnetic waves in military and civilian fields has gained momentum [1][2][3]. However, everything is a double-edged sword.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Dielectric Properties of a Flexible Anisotropic Rubber-Based Composite

et al. 2022

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Rubber-based conductive composites are widely used in sensors, wearable electronic devices and electromagnetic fields. In this work, by using the two-roll milling and hot-pressing process, chopped glass fiber (CGF) and graphene (Gr) as additives, and acrtlinitrile-brtadiene rubber (NBR) as the matrix, a series of anisotropic flexible rubber-based composites were prepared. Using this preparation method, both CGF and Gr additives were directly arranged in the material. When the content of CGF was 1 wt.%, the tensile strength in both the T and W directions of the material reached 27 MPa and 28 MPa, respectively. When the content of CGF was fixed at 1 wt.% and Gr was 1.5 wt.% and the elongation at break in both directions reached 328% and 347%. By focusing on the comparison of the dielectric differences in the T and W directions in the X band, it was found that the directional arrangement of the additives led to differences in the dielectric properties.

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“…[12,13] Conductive polymer composite (CPC) materials composed of conductive nanomaterials and flexible polymer substrates such as polydimethylsiloxane (PDMS), [14][15][16] polyurethane (PU), [17][18][19] polystyrene-butadiene-styrene (SBS) [20] and aramid nanofibers (ANFs) [21][22][23][24] have been investigated extensively owing to their high flexibility and versatile potential applications, and have gained significant progress. [25][26][27][28] For instance, Bao and co-workers demonstrated that the stretchable nanostructured PDMS films can be endowed with desirable multi-functions including piezoresistive sensing with unprecedented sensitivity, [29] light-emitting display [30] and semiconducting [31] for ultra-flexible skin electronics. Our previous work [32] reported the fabrication of ultraflexible and mechanically strong double-layered aramid nanofiber-Ti 3 C 2 T x MXene/silver nanowire (ANF-MXene/AgNW) nanocomposite papers for high-performance EMI shielding and Joule heating via the facile two-step vacuum-assisted filtration followed by hot-pressing approach.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Wearable Silver Nanowire Decorated Leather Nanocomposites for Joule Heating, Electromagnetic Interference Shielding and Piezoresistive Sensing

et al. 2022

Self Cite

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Multifunctional wearable electronic devices based on natural materials are highly desirable for versatile applications of energy conversion, electronic skin and artificial intelligence. Herein, multifunctional wearable silver nanowire decorated leather (AgNW/leather) nanocomposites with hierarchical structures for integrated visual Joule heating, electromagnetic interference (EMI) shielding and piezoresistive sensing are fabricated via the facile vacuum‐assisted filtration process. The AgNWs penetrate the micro‐nanoporous structures in the corium side of leather constructing highly‐efficient conductive networks. The resultant flexible and mechanically strong AgNW/leather nanocomposites exhibit extremely low sheet resistance of 0.8 Ω/sq, superior visual Joule heating temperatures up to 108 °C at low supplied voltage of 2.0 V due to efficient energy conversion, excellent EMI shielding effectiveness (EMI SE) of ≈55 dB and outstanding piezoresistive sensing ability in human motion detection. This work demonstrates the fabrication of multifunctional AgNW/leather nanocomposites for next‐generation wearable electronic devices in energy conversion, electronic skin and artificial intelligence, etc.

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Multifunctional carbon fiber@NiCo/polyimide films with outstanding electromagnetic interference shielding performance

Cited by 111 publications

References 55 publications

Vertically Aligned Carbon Nanotube@Graphene Paper/Polydimethylsilane Composites for Electromagnetic Interference Shielding and Flexible Joule Heating

Vertically Aligned Carbon Nanotube@Graphene Paper/Polydimethylsilane Composites for Electromagnetic Interference Shielding and Flexible Joule Heating

Mechanical and Dielectric Properties of a Flexible Anisotropic Rubber-Based Composite

Multifunctional Wearable Silver Nanowire Decorated Leather Nanocomposites for Joule Heating, Electromagnetic Interference Shielding and Piezoresistive Sensing

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