https://scholars.lib.ntu.edu.tw/handle/123456789/634275
標題: | Jammed Microgels in Deep Eutectic Solvents as a Green and Low-Cost Ink for 3D Printing of Reliable Auxetic Strain Sensors | 作者: | Vo, Trung Hieu Lam, Phuc Khanh YU-JANE SHENG Tsao, Heng Kwong |
關鍵字: | 3D printing | auxetic structure | deep eutectic solvent | eutectogel | microgel ink | strain sensor | 公開日期: | 1-一月-2023 | 卷: | 15 | 期: | 27 | 來源出版物: | ACS Applied Materials and Interfaces | 摘要: | Additive manufacturing is a promising technique for offering novel functionality to various materials by creating three-dimensional (3D) structures. However, the development of sustainable synthesis processes for 3D printing inks or 3D-printed materials remains a major challenge. In this work, a simple two-step mixing approach is developed to prepare a 3D printing ink from green, low-cost, and low-toxicity materials [commercial Carbopol and deep eutectic solvents (DESs)]. A small weight fraction of Carbopol can impart desired rheological properties to the DES used in the 3D printing ink and also can significantly enhance the stretchability of eutectogels up to 2500% strain. The 3D-printed auxetic structure shows a negative Poisson’s ratio (within 100% strain), high stretchability (300%), high sensitivity (gauge factor of 3.1), good moisture resistance, and sufficient transparency. It can detect human motion with high skin comfort and breathability. The results of this work highlight a green, low-cost, and energy-saving strategy to fabricate conductive microgel-based inks for 3D printing of wearable devices. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/634275 | ISSN: | 19448244 | DOI: | 10.1021/acsami.3c05209 |
顯示於: | 化學工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。