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首页> 外文期刊>Journal of Applied Polymer Science >Improvement of actuation performance of dielectric elastomers by barium titanate and carbon black fillers
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Improvement of actuation performance of dielectric elastomers by barium titanate and carbon black fillers

机译：钛酸钡和炭黑填料改善介电弹性体的致动性能

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Dielectric elastomers are promising materials for actuators resembling human muscle. Among elastomers, acrylic rubbers (ACM) have shown good actuation performance but its use is limited by the high operating voltages required. The present work demonstrates that simultaneous incorporation of nanostructured carbon black and dielectric fillers offers an increase in a dielectric permittivity and a suitable modulus of the elastomers matrix, enabling an improved electro-mechanical actuation performance at low voltages. By the use of reinforcing carbon black and barium titanate in an acrylic elastomer matrix a sixfold increase in the dielectric permittivity was realized. A fine tuning of the actuation stress and, consequently, actuation strain can be done by a judicial selection of the different filler concentrations in the soft rubber matrix. Finally, a synergistic effect of the fillers was observed in the improved actuation performance of the developed materials. This work may pave the way to design dielectric elastomers for actuator fabrication. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44116.
机译：介电弹性体是用于类似于人体肌肉的致动器的有前途的材料。在弹性体中，丙烯酸橡胶（ACM）表现出良好的致动性能，但其使用受到所需的高工作电压的限制。本工作表明，同时掺入纳米结构炭黑和介电填料可提高介电常数和弹性体基质的合适模量，从而在低压下改善机电致动性能。通过在丙烯酸类弹性体基质中使用碳黑和钛酸钡进行增强，介电常数提高了六倍。可以通过合理选择软橡胶基体中不同的填料浓度来精确调整驱动应力，从而进行微调。最后，在改进的开发材料的致动性能中观察到填料的协同作用。这项工作可能为设计用于执行器制造的介电弹性体铺平道路。 （c）2016 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，133，44116。

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