Bioinspired Superhydrophobic Thermochromic Films with Robust Healability

Su, Xiaojing; Li, Hongqiang; Lai, Xuejun; Zheng, Longzhu; Chen, Zhonghua; Zeng, Songshan; Shen, Kuangyu; Sun, Luyi

doi:10.1021/acsami.0c00344

Cited by 46 publications

(28 citation statements)

References 48 publications

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“…The film structure has outstanding advantages of excellent heating performance, lightweight, and large-scale processibility. For example, Su and co-workers [71] fabricated a superhydrophobic thermochromic film (STF) composed of a top thermochromic layer and a bottom PVDF-HFP substrate. The film has an excellent healing capability of structure and heating properties, as shown in Figure 3c.…”

Section: Stretchable Heatersmentioning

confidence: 99%

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Design and Construction of Deformable Heaters: Materials, Structure, and Applications

Zhou

2021

Adv Elect Materials

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The technological evolution presents us with infinite possibilities of deformable electronics, far beyond what is possible with conventional electronics. [9][10][11][12] For the past few years, heaters' development has grown rapidly due to wearable electronics' advances and the growing need for practical medical requirements. [13][14][15] The advantages of heaters, such as lightweight, good heating stability, and flexibility, make heaters generally a better choice than conventional heating elements. Various heaters applications have been reported, including deicing devices [16][17][18][19][20] , thermal management devices [21][22][23][24][25] , healthcare [26][27][28][29] , wearable sensors [30][31][32] , etc. For instance, heaters can provide the warmth required to extend the operating temperature of liquid crystal displays (LCDs) in cold environments or can increase the temperature for antifogging systems, anti-icing, deicing of optics, or optical displays [33,34] .Conventional rigid heaters are usually using semiconductor or metallic materials as the heating elements, which have demonstrated stable and excellent performance. For example, Rao and co-workers [35] fabricated a transparent heater by physically depositing Au on a quartz substrate and using an acrylic resin as a crack sacrificial template. It is a transparent conductor with a low sheet resistance of 5.4 Ω sq −1 and a high-temperature heater that can reach ≈600 °C within 38 s by applying a voltage of 15 V. However, the heater is restricted in many applications with portable needs, such as human motion detection, wearable electronics, etc., due to the rigid and thick quartz substrate.As shown in Figure 1a, conventional heaters always consist of a heating element and rigid substrate, and the working principle of electrical heaters is based on the Joule effect and thermal diffusion. However, inherently rigid substrate limits the applications of conventional heaters [36] . Flexible and stretchable heaters had gained tremendous attention with the advances of soft electronics. [37][38][39] Flexible heaters can adapt to moderate deformation, such as bending and twisting. [40,41] And stretchable heaters have more application scenarios due to their stretchable characteristics. [42,43] In the last few years, deformable heaters have gained rapid development due to their wide strain range, good repeatability and low density. [44] Figure 1b shows different structure designs of deformable heaters. One of the most significant advantages Conventional heaters have evolved from traditional rigid heaters to flexible heaters, stretchable heaters, and deformable heaters for the development of soft electronics. Film-based or filament-based heaters can be designed and engineered to fulfill the deformable, adaptable and stretchable applications. Compared with conventional heaters, deformable heaters can maintain stable electrothermal property even with large deformation. Based on this, deformable heaters have shown great potential to be used in the field of Internet of Thin...

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Section: Stretchable Heatersmentioning

confidence: 99%

Section: Deformable Heatersmentioning

confidence: 99%

Design and Construction of Deformable Heaters: Materials, Structure, and Applications

Zhou

2021

Adv Elect Materials

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“…The hydrophobic surface of feathers is useful for birds, because the water droplets rolling off the surface carry any surface contaminants with them. 37,38 The experimental analysis and interpretation presented here is specific for the sample feathers tested under laboratory conditions. The characteristics of these feathers on a living bird may differ and depend on the climatic conditions of the natural habitat.…”

Section: Photographic Images)mentioning

confidence: 99%

Structural colouration in the Himalayan monal, hydrophobicity and refractive index modulated sensing

et al. 2020

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“…[ 18 ] Moreover, the electrothermal behavior is inevitable when the wearable electronics enter service. [ 19 ] The wearable electronics in use will generate a substantial amount of heat, capable of burning the skin of wearers, especially at high voltages. Thus, encapsulated phase change materials (PCMs) could act as the intercalator to facilitate the graphene dispersion in the PU system.…”

Section: Introductionmentioning

confidence: 99%

Self‐Healing Titanium Dioxide Nanocapsules‐Graphene/Multi‐Branched Polyurethane Hybrid Flexible Film with Multifunctional Properties toward Wearable Electronics

Zhou

Liu

Sun

et al. 2021

Adv Funct Materials

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The integration of self-healing capabilities into flexible electronics arouses extensive attention. The application of self-healing electronics with multifunctional properties in a variety of exceptional environments has been identified to be significantly challenging and not yet proven to be fully viable thus far. In the present study, the self-healing octadecane loaded titanium dioxide nanocapsules (OTNs)-graphene/multi-branched polyurethane (PU) hybrid flexible multifunctional film is successfully prepared. The prepared film exhibits a novel self-repair capability that consists of disulfide bonds in the leading chains for efficient self-healing of PU damage, as well as multiple amino groups in the branches for damage between OTNs-graphene and PU. Impacted by the constructed self-healing system and well-dispersed OTNs-graphene, the prepared flexible film demonstrates a prominent performance in piezoresistive sensing and a desirable outcome of ultraviolet protection properties, which can effectively prolong its service life, especially when used outdoors. Moreover, the film exhibits thermal insulating properties, capable of offering a suitable route for thermal protection of bio-integrated wearable electronic devices system. Thus, this self-healing multifunctional film is promising in wearable electronics, human-machine interaction, artificial intelligence devices, etc.

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Bioinspired Superhydrophobic Thermochromic Films with Robust Healability

Cited by 46 publications

References 48 publications

Design and Construction of Deformable Heaters: Materials, Structure, and Applications

Design and Construction of Deformable Heaters: Materials, Structure, and Applications

Structural colouration in the Himalayan monal, hydrophobicity and refractive index modulated sensing

Self‐Healing Titanium Dioxide Nanocapsules‐Graphene/Multi‐Branched Polyurethane Hybrid Flexible Film with Multifunctional Properties toward Wearable Electronics

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