Performance evaluation of cutting-edge dielectric elastomers for large-scale actuator applications
Performance evaluation of cutting-edge dielectric elastomers for large-scale actuator applications
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DOI：
10.1088/0964-1726/20/7/075003
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发表时间：
2011-05
影响因子：
4.1
通讯作者：
C. Jordi;A. Schmidt;G. Kovács;S. Michel;P. Ermanni
中科院分区：
文献类型：
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作者：
C. Jordi;A. Schmidt;G. Kovács;S. Michel;P. Ermanni
近来，新材料已经成为用作介电弹性体致动器中的介电膜的焦点。它们通常在不同的条件下进行表征，并且它们的活化行为大多在实验室规模的样品上进行了研究。本文旨在比较两种有前途的新材料在宏观器件上的激活行为。参考材料是VHB 4910（3 M），首先将其与具有银电极的波纹状硅酮（PolyPower）进行比较，然后与互穿聚合物网络改性的丙烯酸进行比较。测量了介电常数和电击穿强度。还进行了单轴拉伸和松弛试验。在等渗和激动剂-拮抗剂铰链构型中用平面致动器测量激活性能。用简单的模型计算了材料性能对力学性能的影响。
New materials have come into focus lately for use as dielectric membranes in dielectric elastomer actuators. They are often characterized under differing conditions and their activation behaviour has mostly been investigated on lab-scale samples. This paper aims to compare the activation behaviour of two promising new materials on a macroscale device. The reference material is VHB 4910 (by 3M), which is compared first with a corrugated silicone with silver electrodes (by PolyPower) and second with interpenetrating polymer network-modified acrylic. The permittivity and the electrical break-down strength were measured. Uniaxial tensile and relaxation tests were also carried out. The activation performance was measured with planar actuators in an isotonic and in an agonist–antagonist hinge configuration. The influence of the material properties on the mechanical performance is calculated with simple modelling.