Fabrication of functional superhydrophobic materials with stimuli-responsive driving ability for the growing fields such as electric switch and liquid manipulation still remains mysterious and challenging. In this work, a stimuli-responsive superhydrophobic film (SSF) is fabricated by integrating a bottom porous poly(vinylidene fluoride) (PVDF) layer, a sandwiched cross-linkable poly(vinyl alcohol) (cPVA) layer, and a top carbon nanotubes@polydimethylsiloxane (CNTs@PDMS) layer. Induced by the asymmetric swelling of cPVA/PVDF bilayer upon exposure to acetone vapor, the SSFs directionally roll towards the superhydrophobic CNTs@PDMS surface with a large curvature of 0.65 mm⁻¹, a fast response within 10 s, and an excellent fatigue resistance of more than 1000 actuation cycles. Furthermore, the special superhydrophobicity highly ensures the reliable actuation behavior of the SSFs under wet environments. Taking advantage of the conductivity of the CNTs@PDMS layer, the SSF-based electric switches are fabricated and conveniently actuated to control the electric circuit states of turning on/off. Additionally, thanks to the combination of water repellency and acetone vapor-responsive actuation, the SSFs are designed as smart channels for a water control system to successfully achieve the manipulation of liquid flow direction. The findings conceivably stand out as a new methodology to fabricate functional superhydrophobic materials with stimuli-responsiveness for various potential applications.

在诸如电动开关和液体操纵等不断发展的领域中，具有刺激响应驱动能力的功能性超疏水材料的制造仍然是神秘而富有挑战性的。在这项工作中，通过整合底部多孔聚偏二氟乙烯（PVDF）层，夹层可交联聚乙烯醇（cPVA）层和顶部碳纳米管来制造刺激响应性超疏水膜（SSF）。聚二甲基硅氧烷（CNTsPDMS）层。由于在暴露于丙酮蒸汽后cPVA / PVDF双层的不对称膨胀引起，SSF定向滚动到超疏水性CNTs @ PDMS表面，其曲率为0.65 mm ^-1，10 s内的快速响应以及超过1000次驱动循环的出色抗疲劳性。此外，特殊的超疏水性在潮湿环境下高度确保了SSF的可靠驱动行为。利用CNTs @ PDMS层的导电性，制造并方便地操作基于SSF的电开关以控制打开/关闭的电路状态。此外，得益于拒水性和丙酮蒸气响应性驱动的结合，SSF被设计为水控制系统的智能通道，以成功实现对液体流向的控制。可以想象，这些发现是制造具有刺激响应性的功能性超疏水材料以用于各种潜在应用的一种新方法。