High-Performance Liquid Metal/Polyborosiloxane Elastomer toward Thermally Conductive Applications

Zhao, Chunyu; Wang, Yu; Gao, Liang; Xu, Yongzhao; Fan, Ziyang; Liu, Xujing; Ni, Yong; Xuan, Shouhu; Deng, Huaxia; Gong, Xinglong

doi:10.1021/acsami.2c04994

Cited by 48 publications

(20 citation statements)

References 45 publications

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“…For instance, the color change can be a response to temperature changes owing to the special changes in the molecular structure. An example is presented by Zhao et al [92]. After heating liquid metal 1 3 microdroplets (LM)/polyborosiloxane elastomer (PBSE), benefiting from the tremendous thermal diffusion, the color quickly changed from black to pink at 55 °C (Fig.…”

Section: Thermochromic-based Fire Alarmsmentioning

confidence: 99%

Recent Advances on Early-Stage Fire-Warning Systems: Mechanism, Performance, and Perspective

Vázquez-López

Saeza

et al. 2022

Nano-Micro Lett.

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Early-stage fire-warning systems (EFWSs) have attracted significant attention owing to their superiority in detecting fire situations occurring in the pre-combustion process. Substantial progress on EFWSs has been achieved recently, and they have presented a considerable possibility for more evacuation time to control constant unintentional fire hazards in our daily life. This review mainly makes a comprehensive summary of the current EFWSs, including the working mechanisms and their performance. According to the different working mechanisms, fire alarms can be classified into graphene oxide-based fire alarms, semiconductor-based fire alarms, thermoelectric-based fire alarms, and fire alarms on other working mechanisms. Finally, the challenge and prospect for EFWSs are briefly provided by comparing the art of state of fire alarms. This work can propose a more comprehensive understanding of EFWSs and a guideline for the cutting-edge development direction of EFWSs for readers.

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Section: Thermochromic-based Fire Alarmsmentioning

confidence: 99%

Recent Advances on Early-Stage Fire-Warning Systems: Mechanism, Performance, and Perspective

Vázquez-López

Saeza

et al. 2022

Nano-Micro Lett.

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“…Even with respect to the polymers consisting of conventional natural rubber, PDMS, Ecoflex, and SSG, S-CM nanocomposites attained better attenuation capacity. Notably, shear stiffening elastomer (SSE) was developed in our previously work, , which aimed to suppress the cold flow characteristic of SSG, partially sacrificing the guarding performance. To conclude, nacre-mimetic S-CM nanocomposites implemented simultaneous optimization of anti- impact and cold flow performance.…”

Section: Resultsmentioning

confidence: 99%

Nacre-Mimetic Hierarchical Architecture in Polyborosiloxane Composites for Synergistically Enhanced Impact Resistance and Ultra-Efficient Electromagnetic Interference Shielding

et al. 2022

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Pervasive mechanical impact is growing requirement for advanced high-performance protective materials, while the electromagnetic interference (EMI) confers severe risk to human health and equipment operation. Bioinspired structural composites achieving outstanding safeguards against a single threat have been developed, whereas the synergistic implementation of impact/EMI coupling protection remains a challenge. This work proposes the concept of nacre-mimetic hierarchical composite duplicating the "brick-and-mortar" arrangement, which consists of freeze-drying constructed chitosan/MXene lamellar architecture skeleton embedded in a shear stiffening polyborosiloxane matrix. The resulting composite effectively attenuates the impact force of 85.9%−92.8% with extraordinary energy dissipation capacity, in the coordinative manner of strain-rate enhancement, structural densification, lamella dislocation and crack propagation. Attributed to the alternate laminated structure promoting the reflection loss of electromagnetic waves, it demonstrates an ultraefficient EMI shielding effectiveness of 47.2−71.8 dB within extremely low MXene loadings of 1.1−1.3 wt %. Furthermore, it serves favorably in impact monitoring and wireless alarm systems and accomplishes performance optimization through the combination of multiple biomimetic strategies. In conclusion, this function-integrated structural composite is shown to be a competitive candidate for sophisticated environments by resisting impact damage and EMI hazards.

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“…The printing technology of this LM micro-nano particle complex is through mixing LM with silica gel and other polymer elastic materials to form tiny LM droplets in silica gel, as shown in Figure 8A (Pei et al, 2022;Zhao et al, 2022).The LM droplets mixed in the polymer can significantly improve the thermal conductivity of the composite (Figure 8B). Because the LM droplets in silica gel are separated from each other, in order to make the LM droplets form a conductive path, it is necessary to use mechanical external force to destroy the droplets, so that the separated LM droplets communicate with each other, and finally form a conductive path (Lee G. H. et al, 2022;Li X. et al, 2022;Kim et al, 2022;Pozarycki et al, 2022).Since LM droplets can be deformed by silica gel stretching, the electronic circuit formed by this LM silica gel compound has high tensile property, as shown in Figure 8C.…”

Section: Lm-elastomer Compositesmentioning

confidence: 99%

Liquid metal enabled conformal electronics

Ping

Zhou²,

Zhang³

et al. 2023

Front. Bioeng. Biotechnol.

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The application of three-dimensional common electronics that can be directly pasted on arbitrary surfaces in the fields of human health monitoring, intelligent robots and wearable electronic devices has aroused people’s interest, especially in achieving stable adhesion of electronic devices on biological dynamic three-dimensional interfaces and high-quality signal acquisition. In recent years, liquid metal (LM) materials have been widely used in the manufacture of flexible sensors and wearable electronic devices because of their excellent tensile properties and electrical conductivity at room temperature. In addition, LM has good biocompatibility and can be used in a variety of biomedical applications. Here, the recent development of LM flexible electronic printing methods for the fabrication of three-dimensional conformal electronic devices on the surface of human tissue is discussed. These printing methods attach LM to the deformable substrate in the form of bulk or micro-nano particles, so that electronic devices can adapt to the deformation of human tissue and other three-dimensional surfaces, and maintain stable electrical properties. Representative examples of applications such as self-healing devices, degradable devices, flexible hybrid electronic devices, variable stiffness devices and multi-layer large area circuits are reviewed. The current challenges and prospects for further development are also discussed.

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High-Performance Liquid Metal/Polyborosiloxane Elastomer toward Thermally Conductive Applications

Cited by 48 publications

References 45 publications

Recent Advances on Early-Stage Fire-Warning Systems: Mechanism, Performance, and Perspective

Recent Advances on Early-Stage Fire-Warning Systems: Mechanism, Performance, and Perspective

Nacre-Mimetic Hierarchical Architecture in Polyborosiloxane Composites for Synergistically Enhanced Impact Resistance and Ultra-Efficient Electromagnetic Interference Shielding

Liquid metal enabled conformal electronics

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