The current electroactive shape memory polymer composites (SMPCs) show low electric heating efficiency, and the transparency of the matrix is seriously damaged by the conductive fillers. In this work, transparent metal mesh is used to replace the conductive fillers to construct a conductive network for electrical actuation for the first time. The self-cracking aluminum mesh is embedded in the transparent shape memory polyimide film (Alm@TSMPI) by solution casting. As a new type of flexible and transparent heater, the Alm@TSMPI has advantages of fast response and high steady-state temperature. As an electric actuator, the Alm@TSMPI is active and deformable depending on its variable stiffness characteristics, and reverts to its original shape within 13 s under electric stimulation. This is the first report on an electroactive transparent shape memory polymer while maintaining light transmission. Moreover, the transition temperature of 230 °C is much higher than that of all other reported electroactive SMPCs. Furthermore, the Alm@TSMPI is attached to transparent shape memory polystyrene as a flexible transparent heater, and the deformation is triggered by electric field. According to this strategy, the Alm@TSMPI can be applied for the electrical actuation of other SMPs, extending the applications in the electric actuators.

当前的电活性形状记忆聚合物复合材料（SMPC）显示出低的电加热效率，并且基质的透明性被导电填料严重破坏。在这项工作中，首次使用透明金属网代替导电填料，以构建用于电驱动的导电网络。通过溶液浇铸将自裂铝网嵌入透明形状记忆聚酰亚胺薄膜（Alm @ TSMPI）中。作为一种新型的柔性透明加热器，Alm @ TSMPI具有响应速度快和稳态温度高的优点。作为电动执行器，Alm @ TSMPI可以根据其可变的刚度特性来激活和变形，并在电刺激下在13 s内恢复为原始形状。这是有关电活性透明形状记忆聚合物同时保持透光性的第一份报告。此外，230°C的转变温度远高于所有其他报道的电活性SMPC。此外，Alm @ TSMPI附着在透明形状记忆聚苯乙烯上作为柔性透明加热器，变形是由电场触发的。根据该策略，Alm @ TSMPI可以用于其他SMP的电动执行，从而扩展了电动执行器的应用范围。变形是由电场触发的。根据该策略，Alm @ TSMPI可以用于其他SMP的电动执行，从而扩展了电动执行器的应用范围。变形是由电场触发的。根据该策略，Alm @ TSMPI可以用于其他SMP的电动执行，从而扩展了电动执行器的应用范围。