Flexible, Degradable, and Cost-Effective Strain Sensor Fabricated by a Scalable Papermaking Procedure,ACS Sustainable Chemistry & Engineering

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Flexible, Degradable, and Cost-Effective Strain Sensor Fabricated by a Scalable Papermaking Procedure
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-10-15 00:00:00 , DOI: 10.1021/acssuschemeng.8b04298
Hanbin Liu _{1,

2,

3} , Huacui Xiang ₁ , Yubo Ma ₁ , Zhijian Li _{1,

2} , Qingjun Meng _{1,

2} , Huie Jiang _{1,

2} , Haiwei Wu _{1,

2} , Peng Li ₃ , Hongwei Zhou ₄ , Wei Huang ₃

Affiliation

Flexible strain sensors (FSSs) are essential components in intelligent systems, especially in soft robots, human sport monitoring, ect., but their scalable preparation remains a challenge. In this work, we first proposed and demonstrated a strategy to prepare FSS with a scalable and cost-effective papermaking procedure. Cellulose fibers from waste papers and conductive graphite were mixed and subject to a paper former (papermaking machine in laboratory), producing a strain sensitive paper with diameter of 20 cm in 10 min. With the scrips from the strain sensitive paper, the strain sensor was assembled showing good sensing performance for both bending (gauge factor (GF) = 27, response time of 360 ms) and twisting (GF = 26.5, response time of 440 ms) strains. It can be used in movement detections of soft matters (such as a plastic ruler), elbow joints of a puppet, and human fingers. The cost of the sensor was calculated as low as $0.00013, and the strain sensitive paper can be degraded in around 1 min in water under stirring. Furthermore, the strategy can be expanded to the sensor based on carbon black (CB), indicating a universality, which may pave a way for developing more intelligent materials and devices.

中文翻译：

通过可扩展的造纸程序制造的灵活，可降解且具有成本效益的应变传感器

柔性应变传感器（FSS）是智能系统中必不可少的组件，尤其是在软机器人，人类运动监控等方面，但其可扩展的准备工作仍然是一个挑战。在这项工作中，我们首先提出并演示了使用可扩展且具有成本效益的造纸程序来制备FSS的策略。将废纸和导电石墨中的纤维素纤维混合，然后置于造纸机中（实验室的造纸机），在10分钟内生产出直径20厘米的应变敏感纸。利用应变敏感纸上的纸条，组装应变传感器，对弯曲（应变系数（GF）= 27，响应时间为360 ms）和扭曲（GF = 26.5，响应时间为440 ms）都显示出良好的感测性能。。它可以用于软物质（例如塑料尺）的运动检测，木偶的肘关节和人的手指。传感器的成本经计算可低至$ 0.00013，并且在搅拌下，可在约1分钟的水中将应变敏感纸降解。此外，该策略可以扩展到基于炭黑（CB）的传感器，这表明它具有普遍性，这可以为开发更智能的材料和设备铺平道路。

更新日期：2018-10-15

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