Flexible polyvinylidene fluoride film with alternating oriented graphene/Ni nanochains for electromagnetic interference shielding and thermal management

Liang, Linyun; Xu, Penghui; Wang, Yafei; Shang, Yan; Ma, Jianmin; Su, Fengmei; Feng, Yuezhan; He, Chengen; Liu, Chuntai

doi:10.1016/j.cej.2020.125209

Cited by 158 publications

(96 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The values of the composite films at 10.3 GHz were higher than the thickness value of the corresponding test samples, which indicates that the EMI performance of the film can be significantly improved by increasing the sample thickness. Remarkably, the CNF-RGO/NBR composite film had superior EMI shielding effectiveness and ultrathin thickness compared with other EMI shielding materials [22][23][24][25][26]40,[47][48][49][50][51][52][53] (Figure 6d), which indicates that the CNF-RGO/NBR composite film has good potential as an ultrathin, flexible, and highly efficient EMI shielding material.…”

Section: Resultsmentioning

confidence: 94%

“…Additionally, the SE total value of the CNF-RGO/NBR film gradually increased with the GO mass fraction, which may have resulted from the increase of the electrical conductivity of these films with the GO mass fraction. To further elucidate the mechanism of EM shielding, the comparison of the total EMI shielding effectiveness (SE total ), microwave absorption (SE A ), and microwave reflection (SE R ) at the frequency of 10.2 GHz for the obtained CNF-RGO/NBR composite films with [22][23][24][25][26]40,[47][48][49][50][51][52][53] (the hollow shape indicates that the composite material is not flexible).…”

Section: Resultsmentioning

confidence: 99%

“…Generally, when SE total > 10 dB, the multiple reflection SE (SE M ) can be ignored. High-performance EMI shielding was reported to occur at the thickness of the samples beyond the skin depth ( ) and can be calculated as follows: [50] =…”

Section: Preparation Of Composite Films Using Pickering Emulsion Strategymentioning

confidence: 99%

“…Figure 6. a) Comparison of total EMI shielding effectiveness (SE total ) of composite films at the frequency of 8.2-12.4 GHz; b) comparison of total EMI shielding effectiveness (SE total ), microwave absorption (SE A ), and microwave reflection (SE R ) at 10.2 GHz for obtained EMI shielding composites with different GO mass fraction; c) proportion of reflection (R), absorption (A), and transmission (T) of CNF-RGO/NBR composite films; d) schematic of EMI shielding of CNF-RGO/NBR composite films; e) EMI shielding effectiveness of CNF-RGO/NBR-31H depending on thickness; f) EMI shielding effectiveness of resultant composite film compared with other EMI shielding materials [22][23][24][25][26]40,[47][48][49][50][51][52][53]. (the hollow shape indicates that the composite material is not flexible).…”

mentioning

confidence: 99%

See 3 more Smart Citations

Fabrication of Cellulose Nanofiber/Reduced Graphene Oxide/Nitrile Rubber Flexible Films Using Pickering Emulsion Technology for Electromagnetic Interference Shielding and Piezoresistive Sensor

Wang

Guan

Liao

et al. 2021

Macro Materials & Eng

View full text Add to dashboard Cite

With the rapid development of flexible electronics, the demand for flexible electromagnetic interference (EMI) shielding materials is increasing. This study develops a new green and effective strategy, consisting of graphene oxide (GO) and cellulose nanofibrils (CNF) co‐stabilized Pickering emulsion combined with hot‐pressing technology, to prepare flexible and conductive nitrile rubber (NBR) composite films. The composite films consist of a 3D network conductive skeleton structure of reduced GO (RGO) and an isolated NBR structure. This specific design results in a maximum high conductivity of 99 S m−1, which is higher by an order of magnitude compared with that of the composites obtained using the traditional solution blending method, and a stable EMI shielding effectiveness of 25.81 dB in the X band. The introduction of the flexible NBR results in the excellent flexibility and structural strength of the composite film, and exhibits a decrease of 2.51% in the EMI shielding efficacy after 5000 cycles. As a piezoresistive sensor for wearable devices, the CNF‐RGO/NBR flexible film can hold precise current signals and respond to finger motion. The findings of this study can provide new insights for the design of conductive and flexible composites as wearable and portable medical equipment and electronic devices.

show abstract

Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Section: Preparation Of Composite Films Using Pickering Emulsion Strategymentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Fabrication of Cellulose Nanofiber/Reduced Graphene Oxide/Nitrile Rubber Flexible Films Using Pickering Emulsion Technology for Electromagnetic Interference Shielding and Piezoresistive Sensor

Wang

Guan

Liao

et al. 2021

Macro Materials & Eng

View full text Add to dashboard Cite

show abstract

“…2a, the TEM image of graphene displays a translucent sheetlike structure, indicating its mono-or few-layer characteristics. 26 The pure PANI was synthesized via mechanochemical oxidation polymerization of aniline in the absence of graphite. The TEM image of pure PANI shows a randomly aggregated morphology (Fig.…”

Section: Synthesis and Structural Characteristicsmentioning

confidence: 99%

One-pot mechanochemical exfoliation of graphite andin situpolymerization of aniline for the production of graphene/polyaniline composites for high-performance supercapacitors

Jiang

Huang

et al. 2020

RSC Adv.

Self Cite

View full text Add to dashboard Cite

show abstract

A Review on Graphene‐Based Electromagnetic Functional Materials: Electromagnetic Wave Shielding and Absorption

Xia

Gao

2022

Adv Funct Materials

311

View full text Add to dashboard Cite

Electromagnetic (EM) functional materials play an increasingly important role in solving EM wave pollution in both modern military and civil fields. Graphene‐based materials are the most promising candidates in the applications of EM wave shielding and absorption owing to their remarkable structures and enhanced EM properties. Designing graphene‐based materials with elaborately controlled microstructures and optimized EM properties can effectively improve EM energy attenuation and conversion. Herein, the study begins with the EM attenuation mechanism, and multiscale design strategies of graphene‐based EM functional materials are outlined, including molecular‐scale, micro/nanoscale structure, macroscale structure, and integration of multiscale assembly design strategies. Applications in the EM wave shielding and absorption fields are reviewed, focusing on the latest advances in graphene‐based assemblies such as films, fabrics, and composites. Finally, the current challenges and future directions in this fast‐growing field are predicted.

show abstract

Flexible polyvinylidene fluoride film with alternating oriented graphene/Ni nanochains for electromagnetic interference shielding and thermal management

Cited by 158 publications

References 61 publications

Fabrication of Cellulose Nanofiber/Reduced Graphene Oxide/Nitrile Rubber Flexible Films Using Pickering Emulsion Technology for Electromagnetic Interference Shielding and Piezoresistive Sensor

Fabrication of Cellulose Nanofiber/Reduced Graphene Oxide/Nitrile Rubber Flexible Films Using Pickering Emulsion Technology for Electromagnetic Interference Shielding and Piezoresistive Sensor

One-pot mechanochemical exfoliation of graphite andin situpolymerization of aniline for the production of graphene/polyaniline composites for high-performance supercapacitors

A Review on Graphene‐Based Electromagnetic Functional Materials: Electromagnetic Wave Shielding and Absorption

Contact Info

Product

Resources

About