Electrically Activated Paper Actuators
Electrically Activated Paper Actuators
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DOI：
10.1002/adfm.201505123
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发表时间：
2016-04-19
影响因子：
19
通讯作者：
Whitesides, George M.
中科院分区：
文献类型：
--
作者：
Hamedi, Mahiar M.;Campbell, Victoria E.;Whitesides, George M.
本文介绍了电控纸致动器的设计和制造，其操作的基础上发生的尺寸变化时，在纸上的纤维素纤维的表面上吸收的水分的变化。这些致动器被称为“湿膨胀电热纸致动器”（HEPA）。致动器由纸、导电聚合物和胶带制成。它们重量轻，价格便宜，并且可以使用简单的印刷技术制造。HEPA的中心元件是一个多孔的传导路径（用于提供电热），它可以改变纸张的含水量并引起驱动。这种导电路径是通过将导电聚合物（PEDOT：PSS）嵌入纸内制成的，从而制成保持纸的多孔性和亲水性的纸/聚合物复合材料。不同类型的HEPA（直的、弯曲的和折痕的）实现不同类型的运动（例如，弯曲运动、手风琴式运动）。提出了一个理论模型，他们的行为。这些致动器已被用于液体的操纵和光学快门的制造。
This paper describes the design and fabrication of electrically controlled paper actuators that operate based on the dimensional changes that occur in paper when the moisture absorbed on the surface of the cellulose fibers changes. These actuators are called "Hygroexpansive Electrothermal Paper Actuators" (HEPAs). The actuators are made from paper, conducting polymer, and adhesive tape. They are lightweight, inexpensive, and can be fabricated using simple printing techniques. The central element of the HEPAs is a porous conducting path (used to provide electrothermal heating) that changes the moisture content of the paper and causes actuation. This conducting path is made by embedding a conducting polymer (PEDOT:PSS) within the paper, and thus making a paper/polymer composite that retains the porosity and hydrophilicity of paper. Different types of HEPAs (straight, precurved, and creased) achieved different types of motions (e.g., bending motion, accordion type motion). A theoretical model for their behavior is proposed. These actuators have been used for the manipulation of liquids and for the fabrication of an optical shutter.