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首页> 外文期刊>Journal of Applied Physics >Thickness dependence of curvature, strain, and response time in ionic electroactive polymer actuators fabricated via layer-by-layer assembly
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Thickness dependence of curvature, strain, and response time in ionic electroactive polymer actuators fabricated via layer-by-layer assembly

机译：逐层组装制造的离子电活性聚合物致动器中曲率，应变和响应时间的厚度依赖性

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摘要

Ionic electroactive polymer (IEAP) actuators containing porous conductive network composites (CNCs) and ionic liquids can result in high strain and fast response times. Incorporation of spherical gold nanoparticles in the CNC enhances conductivity and porosity, while maintaining relatively small thickness. This leads to improved mechanical strain and bending curvature of the actuators. We have employed the layer-by-layer self-assembly technique to fabricate a CNC with enhanced curvature (0.43 mm_(-1)) and large net intrinsic strain (6.1%). The results demonstrate that curvature and net strain of IEAP actuators due to motion of the anions increase linearly with the thickness of the CNC as a result of the increased volume in which the anions can be stored. In addition, after subtracting the curvature of a bare Nafion actuator without a CNC, it is found that the net intrinsic strain of the CNC layer is independent of thickness for the range of 20-80 nm, indicating that the entire CNC volume contributes equivalently to the actuator motion. Furthermore, the response time of the actuator due to anion motion is independent of CNC thickness, suggesting that traversal through the Nafion membrane is the limiting factor in the anion motion.
机译：包含多孔导电网络复合材料（CNC）和离子液体的离子电活性聚合物（IEAP）促动器会导致高应变和快速响应时间。将球形金纳米颗粒掺入CNC中可增强导电性和孔隙率，同时保持相对较小的厚度。这导致了致动器的改善的机械应变和弯曲曲率。我们采用了逐层自组装技术来制造具有增强的曲率（0.43 mm _（-1））和较大的净固有应变（6.1％）的CNC。结果表明，由于阴离子的运动，IEAP执行器的曲率和净应变随着CNC厚度的增加而线性增加，这是因为阴离子的存储量增加了。此外，在减去不带CNC的裸Nafion执行器的曲率后，发现CNC层的净固有应变在20-80 nm范围内与厚度无关，这表明整个CNC体积对执行器运动。此外，由于阴离子运动造成的执行器响应时间与CNC厚度无关，这表明穿过Nafion膜的运动是阴离子运动的限制因素。

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  • 来源
    《Journal of Applied Physics》 |2011年第10期|p.722-726|共5页
  • 作者

    Reza Montazami; Sheng Liu; Yang Liu; Dong Wang; Qiming Zhang; James R. Heflin;

  • 作者单位

    Deportment of Materials Science and Engineering, Virginia Tech, Blacksburg, Virginia 24061, USA;

    Department of Electrical Engineering, The Pennsylvania State University,University Park,Pennsylvania 16802, USA;

    Department of Electrical Engineering, The Pennsylvania State University,University Park,Pennsylvania 16802, USA;

    Department of Physics, Virginia Tech, Blacksburg, Virginia 24061, USA;

    Department of Electrical Engineering, The Pennsylvania State University,University Park,Pennsylvania 16802, USA;

    Department of Physics, Virginia Tech, Blacksburg, Virginia 24061, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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