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首页> 外文期刊>Synthetic Metals >Conducting IPN actuators: From polymer chemistry to actuator with linear actuation
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Conducting IPN actuators: From polymer chemistry to actuator with linear actuation

机译：传导IPN执行器：从聚合物化学到线性执行器

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摘要

Among electroactive actuators, those based on electronic conducting polymers (ECPs) possess several advantages (low actuation voltages, large deformations, etc.) but also some drawbacks (bending movements only, delamination, etc.). In order to overcome the delamination process observed in working three-layered actuators, we have developed a new concept of actuator consisting in an interpenetrating polymer network (IPN) matrix in which 3,4-ethylenedioxythiophene (EDOT) is chemically polymerized. The typical IPN matrix results from the association of the two following cross-linked polymers: the first one, polyethylene oxide (PEO), will ensure the ionic conductivity of the system after salt incorporation while the second one, polybutadiene (PB), will allow to adjust the required mechanical properties. The chemical polymerization of EDOT within the IPN leads to the formation of a PEDOT gradient, its concentration decreasing from the outside faces towards the centre of the IPN. So, such a one-piece actuator is equivalent to a three-layered actuator. Applying a low potential (2-5 V) at a frequency from 0.1 to 15 Hz, up to 10~6 bending deformations in open air have been observed after incorporation of a room temperature ionic liquid. However, linear deformations are more interesting for a number of applications than simple bending motions. The description of the design of an open air working actuator with linear actuation is presented.
机译：在电活性致动器中，基于电子导电聚合物（ECP）的致动器具有多个优点（致动电压低，变形大等），但也具有一些缺点（仅弯曲运动，分层等）。为了克服在工作的三层执行器中观察到的分层过程，我们开发了一种新的执行器概念，该执行器包含一个互穿聚合物网络（IPN）基质，其中3,4-乙二氧噻吩（EDOT）被化学聚合。典型的IPN基质来自以下两种交联聚合物的缔合：第一种是聚环氧乙烷（PEO），可确保掺入盐后系统的离子电导率，而第二种是聚丁二烯（PB），可允许调整所需的机械性能。 IPN内EDOT的化学聚合导致形成PEDOT梯度，其浓度从IPN的外表面向中心降低。因此，这样的一件式致动器等效于三层致动器。掺入室温离子液体后，在0.1至15 Hz的频率下施加低电位（2-5 V），在露天中观察到高达10〜6的弯曲变形。但是，对于许多应用而言，线性变形比简单的弯曲运动更有趣。介绍了带有线性驱动的露天工作执行器的设计说明。

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