Multi-material 3D printing of a soft pressure sensor
Multi-material 3D printing of a soft pressure sensor
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DOI：
10.1016/j.addma.2019.06.001
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发表时间：
2019-08-01
影响因子：
11
通讯作者：
Choi, Jae-Won
中科院分区：
文献类型：
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作者：
Emon, Md Omar Faruk;Alkadi, Faez;Choi, Jae-Won
智能技术的出现正在刺激可拉伸和可适应传感器的更广泛应用的发展，因为增材制造提供的设计灵活性可能使传感器的生产优于传统制造技术。在这项工作中，开发了一个具有三个挤出头的多材料3D打印系统，用于制造可拉伸的软压力传感器，该传感器使用基于离子液体（IL）的压敏层构建，该压敏层夹在基于碳纳米管（CNT）的可拉伸电极之间，并封装在可拉伸的顶部和底部绝缘层中。为了实现3D打印特性，对传感器材料进行了修改。通过挤压直接打印工艺，通过三种材料和多层传感器制成的打印结构，测试了该系统的性能。成功实现了传感器的多材料3D打印，因为传感材料在打印过程完成后保留了其功能。
The emergence of smart technologies is spurring the development of a wider range of applications for stretchable and conformable sensors, as the design flexibility offered by additive manufacturing may enable the production of sensors that are superior to those produced by conventional manufacturing techniques. In this work, a multi-material 3D printing system with three extrusion heads was developed to fabricate a stretchable, soft pressure sensor built using an ionic liquid (IL)-based pressure-sensitive layer that was sandwiched between carbon nanotube (CNT)-based stretchable electrodes and encapsulated within stretchable top and bottom insulating layers. The sensor materials were modified in order to achieve 3D printable characteristics. The capability of the system was tested by printing structures made from three materials and a multilayer sensor via an extrusion-based direct-print process. Multi-material 3D printing of the sensor was successfully realized, as the sensing material retained its functionality once the printing process was complete.