Electroless deposition of silver nanoparticles on cellulose nanofibrils for electromagnetic interference shielding films

Xu, Yanfang; Qian, Kunpeng; Deng, Dongmei; Luo, Liqiang; Ye, Jinhong; Wu, Hongmin; Miao, Miao; Feng, Xin

doi:10.1016/j.carbpol.2020.116915

Cited by 62 publications

(35 citation statements)

References 43 publications

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“…By reflecting, absorbing, or blocking EM waves with EMI shielding materials, the EM energy and field strength were attenuated below safe values even though EM pulses penetrate the shield. However, the existing research on EMI shielding materials was still focused on the optimization of static shielding performance, which made them unable to satisfy the intelligent terminal application requirement due to the lacking of real-time adjustable shielding performance. , Therefore, developing self-adaptive intelligent EMI shielding materials with adjustable shielding efficiencies according to the environment is of great interest.…”

Section: Introductionmentioning

confidence: 99%

Tensile Stress-Gated Electromagnetic Interference Shielding Fabrics with Real-Time Adjustable Shielding Efficiency

Xia

Wei

Tang

et al. 2021

ACS Sustainable Chem. Eng.

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Traditional electromagnetic interference (EMI) shielding films generally have constant shielding efficiencies that cannot respond to the real-time changing shielding requirements of smart wearable electronics. Here, we report a stress-gated EMI shielding fabric with a high elastic strain of 470% that exhibits variable shielding performance by stretching the fabric to different deformations. The fabric is fabricated through electroless plating Cu nanoparticles on the electrospun polyurethane nanofiber films, which can change from conducting to insulating when the stretch deformation reaches 50% and then back to conducting as the stress is released. The deformation causes repeated separation and contact of Cu nanoparticles on the surfaces of polyurethane nanofibers, resulting in a reversible transition between conducting and insulating. The fabric with tensile stress-gated conductivity can capture and weaken electromagnetic waves through absorption, reflection, and scattering, which shows real-time changing EMI shielding efficiencies from 0 to 52.31 dB. More importantly, the developed method of electroless plating for the deposition of continuous metal nanoparticles on elastic polyurethane nanofibers is new and scalable, which shows broad application prospects in smart EMI shielding fields.

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Section: Introductionmentioning

confidence: 99%

Tensile Stress-Gated Electromagnetic Interference Shielding Fabrics with Real-Time Adjustable Shielding Efficiency

Xia

Wei

Tang

et al. 2021

ACS Sustainable Chem. Eng.

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“…35 With regards to the PCNF composite aerogel, the transmittance intensity increased within the range of 3500−3100 cm −1 , which may be due to the insertion of the free O−H group from PDA. 36,37 Other characteristic peaks (1050 cm −1 and 1640 cm −1 ) of the PCNF composite aerogel shifted to lower wavelength. Figure 2d shows the XRD spectra of the CNF aerogel and PCNF composite aerogel.…”

Section: Resultsmentioning

confidence: 97%

Polydopamine-Modified Cellulose Nanofibril Composite Aerogel: An Effective Dye Adsorbent

et al. 2022

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In this study, a new cellulose nanofibril (CNF) composite aerogel was fabricated using a green and facile mussel-inspired coating strategy. First, the CNF hydrogel was crosslinked by calcium ion followed by immersion in dopamine solution. Second, the surface of CNF was modified using polydopamine (PDA) to obtain PDA@CNF (PCNF) composite aerogel. The PCNF composite aerogels had large surface areas (368.15 m2/g) and low bulk density (27.2 mg/cm3). The composite aerogel exhibited improved mechanical properties, which were almost three times compared with those of CNF aerogel. Moreover, PCNF composite aerogel had good resilience under a wet state. The PDA functional layer remarkably enhanced the adsorption capacities of the composite aerogel for methylene blue (MB). The maximum adsorption of MB was 208 mg/g at an initial dye concentration of 50 mg/L. The adsorption isotherm and kinetic behaviors of the composite aerogel were consistent with Langmuir and pseudo-second-order models. In addition, the PCNF composite aerogels had a high adsorption capacity over a wide pH range. The reuse experiment showed that the removal efficiency of the composite aerogel remained higher than 85% after five cycles. Therefore, PCNF composite aerogels may have potential application in wastewater treatment due to its environmental sustainability and low energy consumption.

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“…Gu et al developed a set of polylactide-based polyurethane (Fe 3 O 4 /PLAUs) shape-memory nanocomposites that exhibit a speedy magnetic response [ 134 ]. The homogeneous distribution of Fe 3 O 4 nanoparticles was achieved using oleic acid, which is effective for nanocomposites with low nanoparticle content.…”

Section: Aerospace Applicationsmentioning

confidence: 99%

Recent Trends in Magnetic Polymer Nanocomposites for Aerospace Applications: A Review

et al. 2022

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Polymers have had an enormous impact on science and technology, and their interest relating to the development of new macromolecular materials has exponentially increased. Polymer nanocomposites, materials based on a polymeric matrix covalently coupled to reinforcement, display properties of both components. In the aerospace industry, polymer nanocomposites are attractive due to their promising characteristics, among which lightness, mechanical and thermal resistance, radiation and corrosion resistance, and conductive and magnetic properties stand out. The use of them, instead of metal-based materials, has allowed the optimization of design processes and applications in order to provide safer, faster, and eventually cheaper transportation in the future. This comparative review collects the most relevant and prominent advances in the development of polymer nanocomposites with aerospace applications starting from basic aspects such as the definition of polymer nanocomposite to more specialized details such as synthesis, characterization, and applications, in addition to proposing new research branches related to this topic.

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Electroless deposition of silver nanoparticles on cellulose nanofibrils for electromagnetic interference shielding films

Cited by 62 publications

References 43 publications

Tensile Stress-Gated Electromagnetic Interference Shielding Fabrics with Real-Time Adjustable Shielding Efficiency

Tensile Stress-Gated Electromagnetic Interference Shielding Fabrics with Real-Time Adjustable Shielding Efficiency

Polydopamine-Modified Cellulose Nanofibril Composite Aerogel: An Effective Dye Adsorbent

Recent Trends in Magnetic Polymer Nanocomposites for Aerospace Applications: A Review

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