Multifunctional Electronic Textiles by Direct 3D Printing of Stretchable Conductive Fibers,Advanced Electronic Materials

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Multifunctional Electronic Textiles by Direct 3D Printing of Stretchable Conductive Fibers
Advanced Electronic Materials ( IF 5.3 ) Pub Date : 2023-03-08 , DOI: 10.1002/aelm.202201194
Yuntian Wang ₁ , Zhixun Wang ₂ , Zhe Wang ₂ , Ting Xiong ₂ , Perry Ping Shum ₁ , Lei Wei ₂

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The integration of functional fibers into wearable devices by traditional methods is commonly completed in weaving. A new post-weaving method of integrating fiber devices into textiles is needed to address the challenge of incorporating functional fiber into ready-made garments without tearing down the clothing and re-weaving. A 3D printing method to simultaneously fabricate and integrate highly stretchable conductive fiber into ready-made garments with designed patterns is presented. The fabricated sheath–core fiber consists of a styrene–ethylene–butylene–styrene (SEBS) shell and a Ga–In–Sn alloy liquid metal core. The SEBS shell guarantees the high stretchability (up to 600%) and flexibility, while the liquid metal core offers a high conductivity maintained at large deformation. It is shown that sophisticated patterns, which have millimeter-level-resolution that are difficult to be integrated into textiles by weaving, and even more laborious to be incorporated into ready-made garments, can now be easily modified and implemented into both textiles and ready-made garments by a time-saving and low-cost 3D printing method. Utilizing the electrical characteristics of the fiber in pre-designed patterns, on-clothing soft electronics can be printed directly. A printed on-clothing strain sensor, bending sensor, wireless charging coil, and a touch-sensing network are demonstrated to show the potential applications in wearable electronics.

中文翻译：

通过可拉伸导电纤维直接 3D 打印的多功能电子纺织品

传统方法将功能纤维集成到可穿戴设备中，通常在编织中完成。需要一种将纤维装置集成到纺织品中的新后织方法，以应对将功能性纤维集成到成衣中而无需撕下衣服和重新编织的挑战。提出了一种 3D 打印方法，可同时制造高度可拉伸的导电纤维并将其集成到具有设计图案的成衣中。制造的皮芯纤维由苯乙烯-乙烯-丁烯-苯乙烯 (SEBS) 壳和 Ga-In-Sn 合金液态金属芯组成。SEBS 壳保证了高拉伸性（高达 600%）和柔韧性，而液态金属芯提供了在大变形下保持高导电性。它表明，复杂的模式，毫米级的分辨率很难通过编织融入纺织品，融入成衣更费力，现在可以很容易地修改并实现到纺织品和成衣中。节省和低成本的 3D 打印方法。利用纤维在预先设计图案中的电气特性，可以直接打印在衣服上的软电子产品。展示了印刷在衣服上的应变传感器、弯曲传感器、无线充电线圈和触摸传感网络，以展示在可穿戴电子产品中的潜在应用。现在可以通过省时且低成本的 3D 打印方法轻松修改并应用到纺织品和成衣中。利用纤维在预先设计图案中的电气特性，可以直接打印在衣服上的软电子产品。展示了印刷在衣服上的应变传感器、弯曲传感器、无线充电线圈和触摸传感网络，以展示在可穿戴电子产品中的潜在应用。现在可以通过省时且低成本的 3D 打印方法轻松修改并应用到纺织品和成衣中。利用纤维在预先设计图案中的电气特性，可以直接打印在衣服上的软电子产品。展示了印刷在衣服上的应变传感器、弯曲传感器、无线充电线圈和触摸传感网络，以展示在可穿戴电子产品中的潜在应用。

更新日期：2023-03-08

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