Department of Physics, Chemistry and Biology (IFM), Biosensors and Bioelectronics Centre, Linköping University, 58183 Linköping, Sweden.
Department of Management and Engineering (IEI), Solid Mechanics, Linköping University, 58183 Linköping, Sweden.
Sci Adv. 2017 Jan 25;3(1):e1600327. doi: 10.1126/sciadv.1600327. eCollection 2017 Jan.
A need exists for artificial muscles that are silent, soft, and compliant, with performance characteristics similar to those of skeletal muscle, enabling natural interaction of assistive devices with humans. By combining one of humankind's oldest technologies, textile processing, with electroactive polymers, we demonstrate here the feasibility of wearable, soft artificial muscles made by weaving and knitting, with tunable force and strain. These textile actuators were produced from cellulose yarns assembled into fabrics and coated with conducting polymers using a metal-free deposition. To increase the output force, we assembled yarns in parallel by weaving. The force scaled linearly with the number of yarns in the woven fabric. To amplify the strain, we knitted a stretchable fabric, exhibiting a 53-fold increase in strain. In addition, the textile construction added mechanical stability to the actuators. Textile processing permits scalable and rational production of wearable artificial muscles, and enables novel ways to design assistive devices.
需要一种安静、柔软、顺应的人造肌肉，其性能类似于骨骼肌，从而使辅助设备能够与人类自然交互。通过将人类最古老的技术之一——纺织加工与电活性聚合物相结合，我们在这里展示了通过编织和针织制造可穿戴、柔软的人造肌肉的可行性，这种人造肌肉具有可调节的力和应变。这些纺织致动器由纤维素纱线组装成织物，并使用无金属沉积的方法涂覆导电聚合物。为了增加输出力，我们通过编织将纱线并排放置。织物中纱线的数量与输出力呈线性关系。为了增加应变，我们编织了一种可拉伸的织物，应变增加了 53 倍。此外，纺织结构为致动器增加了机械稳定性。纺织加工允许可扩展和合理地生产可穿戴的人造肌肉，并为设计辅助设备提供了新的方法。
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