Developing stretchable sensors and contracting textiles: Emerging technologies for wearable devices

开发可拉伸传感器和收缩纺织品：可穿戴设备的新兴技术

• 批准号: RGPIN-2018-06888
• 负责人: Madden, John
• 金额: $ 8.01万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=752185
• 关键词: Developing; stretchable; sensors; contracting; textiles

Wearable devices, robot skin, soft robotics, imperceptible electronics and ionic skin are rapidly evolving research themes that have attracted the attention of electronic device manufacturers, automotive giants and medical device companies. There is tremendous interest in creating intelligent fabrics and devices that can fold and stretch, be integrated into clothing, be applied as a skin on a machine, or even be used inside the body. We aim to spur on development by contributing:1. Actuating fabrics composed of coiled heat-driven polymers and yarns that contract in length by as much as muscle does, but with much higher stresses;2. Highly stretchable and tough gel-based thin films for sensing touch, proximity, pressure, shear and bending; andThese emerging technologies will be further developed by:1. Adding a catch state to the coiled polymer actuators in order to remove energy loss when they are operating at constant load, as increasing speed and modeling load dependence;2. Demonstrating new functionality in gel based ionic skin sensors.The material and mechanism based innovations will set the stage for integration into devices that could include:1. Garments that promote circulation in the legs by generating time varying pressure; and clothing that changes stiffness and breathability depending on level of activity. It may also be possible to provide assistive forces for short duration, intermittent activities (such as getting up from a chair). The active fabrics may also provide mechanisms for driving fingers in low cost humanoid robots, or help with rehabilitation; They may also provide protection from biological and chemical warfare agents.2. Smart sheets for detecting sleep state, and pressure ulcers, as well as robot skin to help with grasp and human interaction;The proposed work aims to focus on advancing the materials-based innovations in sensing and actuation. As these innovations reach the point where they are ready for application in smart textiles, wearables, and health/fitness monitoring devices, they will evolve as spin-off projects with industry.

可穿戴设备、机器人皮肤、软机器人、隐形电子和离子皮肤是快速发展的研究主题，吸引了电子设备制造商、汽车巨头和医疗设备公司的关注。人们对创造智能织物和设备有着极大的兴趣，这些织物和设备可以折叠和拉伸，可以集成到衣服中，可以作为机器上的皮肤，甚至可以在体内使用。我们的目标是通过以下贡献促进发展：1 .由热驱动聚合物和纱线组成的驱动织物，其长度收缩与肌肉一样大，但应力要高得多；高度可拉伸和坚韧的凝胶基薄膜，用于感应触摸，接近，压力，剪切和弯曲；这些新兴技术将通过以下方式得到进一步发展：1 .在线圈聚合物执行器中加入捕获状态，以消除其在恒定负载下运行时的能量损失，从而提高速度和建模负载依赖性；展示凝胶离子皮肤传感器的新功能。基于材料和机制的创新将为集成到设备中奠定基础，这些设备可能包括：通过产生随时间变化的压力来促进腿部循环的衣服；以及根据活动程度改变僵硬度和透气性的衣服。它也可以为短时间的间歇活动（如从椅子上站起来）提供辅助力量。活性织物还可以为低成本的人形机器人提供驱动手指的机制，或帮助康复；它们还可以防止生物和化学战剂的伤害。用于检测睡眠状态和压疮的智能床单，以及帮助抓取和人际互动的机器人皮肤；提出的工作旨在重点推进基于材料的传感和驱动创新。随着这些创新技术达到可以应用于智能纺织品、可穿戴设备和健康/健身监测设备的程度，它们将演变为与工业相关的衍生项目。