期刊
CHEMICAL ENGINEERING JOURNAL
卷 455, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2022.140543
关键词
Self -healing; Stretchable; Skin -like substrates; Wearable electronics; E -skin
This article introduces the development of a multifunctional self-healing, stretchable, deformable, biocompatible, transparent, and self-adhesive composite based on networking PBS (polyborosiloxane) and Ecoflex. The composite possesses fast self-healing capability, high stretchability, transparency, ideal electrical insulation, and good chemical stability. It also exhibits consistent thermal stability at high temperatures. These remarkable properties make it an essential skin-mimicking substrate for biomedical and wearable applications such as e-skin.
Bioinspired skin-like substrates have drawn a great research interest because of their essentiality in wearable applications like electronic skin (e-skin). Yet, developing a biocompatible skin-like substrate is often challenging, especially in enabling stretchability and self-healability. Herein, the development of a multifunctional self -healing, stretchable, deformable, biocompatible, transparent, and self-adhesive composite based on networking PBS (polyborosiloxane) and Ecoflex is introduced. The developed PBS:Ecoflex composite possesses a fast self-healing capability (in 30 s at room temperature (RT)), stretchability (over 500 %), high strength, transparency (90 % of the visible light), ideal electrical insulation, and good chemical stability in various harsh conditions, including in strong acid/base solutions and different solvents. Furthermore, its thermal stability remains consistent at over 100 celcius. Altogether, those remarkable properties indicate the efficacy of using the developed composite as a mechanically skin-mimicking substrate, which is essential for numerous biomedical and wearable applications like e-skin. For the proof-of-concept, a wearable pressure sensor array is developed, and its pressure responses are monitored to validate its functioning when attached to the human skin.
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