Pickering emulsion strategy for high compressive carbon aerogel as lightweight electromagnetic interference shielding material and flexible pressure sensor

Liao, Daogui; Guan, Yupeng; He, Yingying; Li, Shuai; Wang, Yanan; Liu, Hongxia; Zhou, Li; Wei, Chun; Yu, Chuanbai; Chen, Yunhua

doi:10.1016/j.ceramint.2021.05.059

Cited by 25 publications

(6 citation statements)

References 54 publications

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“…44 At the same time, the absorption peak of FCMA aerogel at 3130 cm −1 showed a red shift to 3126 cm −1 , illustrating that there were hydrogen bonds between FAS and CMA. 45 These results further verified that the FCMA aerogel was successfully prepared, and FAS was 48 MXene/CS, 27 MXene/rGO, 49 CNT/ rGO/CNF, 50 AL/CNF, 51 CNF/rGO/PMMA, 52 GN, 53 CNC/KGM, 54 CNT/CS). 55 (g) Sensing mechanism of the FCMA aerogel.…”

Section: ■ Introductionsupporting

confidence: 58%

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High-Sensitivity Microchannel-Structured Collagen Fiber-Based Sensors with Antibacterial and Hydrophobic Properties

Pan

Zhang

et al. 2022

ACS Sustainable Chem. Eng.

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Wearable sensors have become significant for collecting motion and health information. It is urgent to develop high-sensitivity sensors that can be used in various complex environments. Herein, we prepare an antibacterial and superhydrophobic 1H,1H,2H,2H-perfluorooctyltriethoxysilane (FAS)-cross-linked collagen fibers/MXene/Ag nanoparticles (FCMA) aerogel sensor. Benefiting from the microchannel structure of the FCMA aerogel, the sensor achieved high sensitivity (168.44 kPa–1) and fast response (0.2 s) and recovery (0.1 s). Meanwhile, the sensor can stably detect tiny physiological signals and large movements of human body. Importantly, owing to the low surface energy of FAS, the FCMA aerogel shows superhydrophobic and antifouling properties for application in damp or rainy conditions. The antiadhesion of superhydrophobic surface and the bactericidal effects of Ag nanoparticles make the sensor possess good antibacterial and antifungal activities, which can effectively prevent bacterial/fungi growth and protect human health. Therefore, the flexible and multifunctional FCMA aerogel sensor has versatile and promising applications in wide areas.

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Section: ■ Introductionsupporting

confidence: 58%

“…(e) Durability under the pressure of 0.7 kPa. (f) Comparison of the sensing properties of the FCMA aerogel sensor with other aerogel sensors (BC/CNF,48 MXene/CS,27 MXene/rGO,49 CNT/ rGO/CNF,50 AL/CNF,51 CNF/rGO/PMMA,52 GN,53 CNC/KGM,54 CNT/CS) 55. (g) Sensing mechanism of the FCMA aerogel.…”

mentioning

confidence: 99%

High-Sensitivity Microchannel-Structured Collagen Fiber-Based Sensors with Antibacterial and Hydrophobic Properties

Pan

Zhang

et al. 2022

ACS Sustainable Chem. Eng.

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“…Moreover, the mechanical properties of graphene aerogels are mainly controlled by the strong and robust sheet-to-sheet interfaces, facilitating the efficient load transfer, impacted by inherent van der Waals forces between layers. However, the resultant graphene-only 3D aerogel skeletons, formed by self-assembly methods, still have generally failed to exhibit high compressive strain (more than 80%) and excellent fatigue resistance owing to the instability of the three-dimensional structure and fragile nature of graphene [ 208 ]. Significantly, the mechanical properties may also be influenced by hydrogen bonding, or even covalent bonding provided by insulating polymers or amorphous carbon with low conductivity, which depended on other materials for synthesis support of aerogels [ 209 ].…”

Section: Emi Shielding Materialsmentioning

confidence: 99%

“…Significantly, the mechanical properties may also be influenced by hydrogen bonding, or even covalent bonding provided by insulating polymers or amorphous carbon with low conductivity, which depended on other materials for synthesis support of aerogels [ 209 ]. Therefore, bridging the polymeric materials during “sol–gel” process, such as polyimide (PI) [ 124 , 209 ], polymethyl methacrylate (PMMA) [ 208 , 210 ], CNF [ 208 , 211 ], aramid nanofiber (ANF) [ 190 ], with the rGO sheets can effectively enhance the mechanical properties and meet the demand for repeated rebound by creating new bonds. Wong’s group fabricated rGO/cellulose fiber (CF) hybrid aerogel through lyophilization and carbonization process [ 212 ].…”

Section: Emi Shielding Materialsmentioning

confidence: 99%

Flexible Nanocomposite Conductors for Electromagnetic Interference Shielding

et al. 2023

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Highlights Convincing candidates of flexible (stretchable/compressible) electromagnetic interference shielding nanocomposites are discussed in detail from the views of fabrication, mechanical elasticity and shielding performance. Detailed summary of the relationship between deformation of materials and electromagnetic shielding performance. The future directions and challenges in developing flexible (particularly elastic) shielding nanocomposites are highlighted. Abstract With the extensive use of electronic communication technology in integrated circuit systems and wearable devices, electromagnetic interference (EMI) has increased dramatically. The shortcomings of conventional rigid EMI shielding materials include high brittleness, poor comfort, and unsuitability for conforming and deformable applications. Hitherto, flexible (particularly elastic) nanocomposites have attracted enormous interest due to their excellent deformability. However, the current flexible shielding nanocomposites present low mechanical stability and resilience, relatively poor EMI shielding performance, and limited multifunctionality. Herein, the advances in low-dimensional EMI shielding nanomaterials-based elastomers are outlined and a selection of the most remarkable examples is discussed. And the corresponding modification strategies and deformability performance are summarized. Finally, expectations for this quickly increasing sector are discussed, as well as future challenges.

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“…Due to this the redundant signal could be fully absorbed by the EMI shielding material and be blocked from both transmission (protecting other signal emitting elements from signal interference) and reflection (maintaining the signal stabilization of the signal emitting element) [6][7][8]. The high-end mobile communication equipment of signal integrity, accuracy and reliability is calling for advanced lightweight EMI shielding materials with strong EM absorption and low EM reflection [9,10].…”

Section: Introductionmentioning

confidence: 99%

Synergistic Manipulation of Zero-Dimension and One-Dimension Hybrid Nanofillers in Multi-Layer Two-Dimension Thin Films to Construct Light Weight Electromagnetic Interference Material

Jin

Meng

et al. 2021

Polymers

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Nanocomposite foam with a large expansion ratio and thin cell walls is promising for electromagnetic interference (EMI) shielding materials, due to the low electromagnetic (EM) reflection and high EM absorption. To overcome the dimensional limitation from two-dimension (2D) thin walls on the construction of conductive network, a strategy combining hybrid conductive nanofillers in semi-crystalline matrix together with supercritical CO2 (scCO2) foaming was applied: (1) one-dimension (1D) CNTs with moderate aspect ratio was used to minimize the dimensional confinement from 2D thin walls while constructing the main EM absorbing network; (2) zero-dimension (0D) carbon black (CB) with no dimensional confinement was used to connect the separated CNTs in thin walls and to expand the EM absorbing network; (3) scCO2 foaming was applied to obtain a cellular structure with multi-layer thin walls and a large amount of air cells to reduce the reflected EM; (4) semi-crystalline polymer was selected so that the rheological behavior could be adjusted by optimizing crystallization and filler content to regulate the cellular structure. Consequently, an advanced material featured as lightweight, high EM absorption and low EM reflection was obtained at 0.48 vol.% hybrid nanofillers and a density of 0.067 g/cm3, whose specific EMI shielding performance was 183 dB cm3/g.

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Pickering emulsion strategy for high compressive carbon aerogel as lightweight electromagnetic interference shielding material and flexible pressure sensor

Cited by 25 publications

References 54 publications

High-Sensitivity Microchannel-Structured Collagen Fiber-Based Sensors with Antibacterial and Hydrophobic Properties

High-Sensitivity Microchannel-Structured Collagen Fiber-Based Sensors with Antibacterial and Hydrophobic Properties

Flexible Nanocomposite Conductors for Electromagnetic Interference Shielding

Synergistic Manipulation of Zero-Dimension and One-Dimension Hybrid Nanofillers in Multi-Layer Two-Dimension Thin Films to Construct Light Weight Electromagnetic Interference Material

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