Nylon Fabric Enabled Tough and Flaw Insensitive Stretchable Electronics

Sim, Kyoseung; Gao, Yang; Zhou, Chunlin; Song, Jizhou; Yu, Cunjiang

doi:10.1002/admt.201800466

Cited by 6 publications

(2 citation statements)

References 42 publications

(38 reference statements)

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“…Compared with other transparent materials, transparent polyamide not only combines the high transparency but also inherits the traditional polyamide’s unique advantages such as strong strength, long durability, and excellent chemical resistance. Therefore, it has been widely used in various industries, including automotive, consumer goods, medical, electronics, and aerospace [ 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

An Intrinsically Transparent Polyamide Film with Superior Toughness and Great Optical Performance

Li,

Yi,

Wang

et al. 2024

Polymers

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Polyamide 66 was extensively utilized in various applications contributed by its excellent mechanical performance and outstanding durability. However, its high crystallinity renders it to have low transparency, which seriously limits its application in optical devices. Herein, a highly transparent polyamide (PA) 66-based copolymer was reported using 4,4′-diaminodicyclohexylmethane (PACM), adipic acid, and polyamide 66 salt as the reaction monomers. Wide-angle X-ray diffraction (WAXD) analysis revealed that the crystal phase of the synthesized PA66/PACM6 displayed a clear transition from α to γ as the PACM6 increased accompanied by a decreased intensity in the diffraction peak of the copolymer, whose transmittance was successfully adjusted reaching as high as 92.5% (at 550 nm) when the PACM6 was 40 wt%. Moreover, the copolymer with a higher content of PACM6 exhibited larger toughness. On the other hand, the biaxially oriented films of PA66/PACM6 (20 wt%) were also prepared, and it was found that the transparency of the PA66/PACM6 copolymer could be further enhanced via adjusting the stretching ratio of the film. Furthermore, the mechanical strength of the biaxially oriented PA66/PACM6 was also improved with the increase in the orientation degree in the stretching process, indicating that the physical properties of the transparent PA66 were significantly influenced by its alicyclic structure, and the introduction of PACM into PA66 was capable of effectively improving the optical and crystalline characteristics of PA66, revealing that the synthetic strategy has great potential for guiding the design and development of transparent polyamide materials.

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Section: Introductionmentioning

confidence: 99%

An Intrinsically Transparent Polyamide Film with Superior Toughness and Great Optical Performance

Li,

Yi,

Wang

et al. 2024

Polymers

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“…Thin, soft, stretchable sensors have attracted great attention around the world, due to their advantages of high flexibility, multi-functions, and bio-integration/compatibility. [1][2][3][4][5][6] In recent years, many research efforts have been focused on developing functional materials [7][8][9][10][11] and designing advanced device structures [12][13][14][15][16][17] to expand the applications of the flexible sensors. For instance, soft materials with great electrical properties, fancy electronic interconnects based on serpentine, island-bridge, and nano-mesh enable superior flexibility for wearable electronics.…”

Section: Introductionmentioning

confidence: 99%

Thin, Skin‐Integrated, Stretchable Triboelectric Nanogenerators for Tactile Sensing

Liu

Wang

Zhao

et al. 2019

Adv Elect Materials

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a trend. [22-27] Currently, self-powered technologies based on piezoelectric materials [28-32] and triboelectric nanogenerator [33-37] are two typical strategies to convert mechanical energy into electricity. Compared to piezoelectric nanogenerator, triboelectric nanogenerator is more suitable for energy harvesting, as it typically can provide much higher output voltage and current. [38-40] However, reports of using triboelectric nanogenerator for flexible sensors are still much less than those of piezoelectric based ones. [41] The typical method of using triboelectric nanogenerator for stress sensing involves difference of electrical signal output with different contact areas. [35,42,43] Therefore, human motion caused contact separations in the wearable triboelectric nanogenerator can result in electricity output and thus tactile sensing. [35] To better meet Recent advances in thin, soft skin-integrated electronics have brought many opportunities in the wearable technics. A simple platform with the functionality of self-powering for epidermal electronics is reported. These electronics can generate electricity from external mechanical stresses that associates with triboelectric effect, and therefore afford excellent performance in tactile sensing and energy harvesting. Combined advances in materials and mechanics of the skin-integrated electronics with high efficiency energy harvesting techniques, triboelectric nanogenerators (TENGs) in an epidermal format is realized for the first time. The dots-distributed electrode pattern allows these electronics exhibiting excellent flexibility and stretchability, distinguishing a broad range of pressures that are relevant to normal body motions. The electricity output of the epidermal device from simple finger tapping modes can achieve >60 V of voltage and >1 µA of current, which is sufficient to light up 15 small light-emitting diodes. Furthermore, the authors also report a 4 × 4 sensor array based on these TENGs, and demonstrate a skin-like electronics for real-time motion monitoring and tactile mapping.

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Recent development on the design, preparation, and application of stretchable conductors for flexible energy harvest and storage devices

Cheng,

Tian,

Qin

et al. 2024

SusMat

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The intensifying energy crisis has made it urgent to develop robust and reliable next‐generation energy systems. Except for conventional large‐scale energy sources, the imperceptible and randomly distributed energy embedded in daily life awaits comprehensive exploration and utilization. Harnessing the latent energy has the potential to facilitate the further evolution of soft energy systems. Compared with rigid energy devices, flexible energy devices are more convenient and suitable for harvesting and storing energy from dynamic and complex structures such as human skin. Stretchable conductors that are capable of withstanding strain (≫1%) while sustaining stable conductive pathways are prerequisites for realizing flexible electronic energy devices. Therefore, understanding the characteristics of these conductors and evaluating the feasibility of their fabrication strategies are particularly critical. In this review, various preparation methods for stretchable conductors are carefully classified and analyzed. Furthermore, recent progress in the application of energy harvesting and storage based on these conductors is discussed in detail. Finally, the challenges and promising opportunities in the development of stretchable conductors and integrated flexible energy devices are highlighted, seeking to inspire their future research directions.

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Nylon Fabric Enabled Tough and Flaw Insensitive Stretchable Electronics

Cited by 6 publications

References 42 publications

An Intrinsically Transparent Polyamide Film with Superior Toughness and Great Optical Performance

An Intrinsically Transparent Polyamide Film with Superior Toughness and Great Optical Performance

Thin, Skin‐Integrated, Stretchable Triboelectric Nanogenerators for Tactile Sensing

Recent development on the design, preparation, and application of stretchable conductors for flexible energy harvest and storage devices

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