Most dielectric elastomers (DEs) need high operating electric field (>100 kV/mm) and the essential pre-strains to achieve satisfied actuation, which limits their widespread application. In this work, we prepare a series of high performance DEs using the common acrylate monomers through a versatile method. By adjusting the component of polymers, the advanced DE possess a high actuation coefficient β (51.54 MPa⁻¹) and shows a high actuated strain of 52.08% at a low electric field of 21.57 kV/mm without pre-strain. It is also found that the actuated strain of the c-p (BA-GMA)-3 is almost 4.2 times higher than that of VHB 4910. Furthermore, the advanced DE material is used to fabricate into a bend actuator, which can bend a angel of 180° and show a good electromechanical response. The present work opens a new strategy for designing advanced dielectric elastomers displaying high actuated strain without pre-strain at very low electric field.

大多数介电弹性体（DE）需要高工作电场（> 100 kV / mm）和基本的预应变才能实现满意的驱动性能，这限制了它们的广泛应用。在这项工作中，我们通过通用方法使用普通的丙烯酸酯单体制备了一系列高性能DE。通过调节聚合物的成分，先进的DE拥有很高的致动系数β（51.54 MPa ^-1），并且在没有预应变的21.57 kV / mm的低电场下显示出52.08％的高激励应变。还发现，cp（BA-GMA）-3的致动应变几乎是VHB 4910的4.2倍。此外，先进的DE材料用于制造弯曲致动器，该致动器可以弯曲180°并显示出良好的机电响应。本工作为设计先进的介电弹性体提供了新的策略，该介电弹性体在非常低的电场下显示出高的驱动应变而无预应变。