Superhydrophobic and electrically conductive coatings with multifunctionality have promising applications especially in the field of flexible electronics; however, developing the multi-functional coating with excellent durability, high temperature tolerance and corrosion resistance is still a challenge. Here, a novel emulsion dipping based strategy is, for the first time, proposed for preparation of the superhydrophobic smart coating. A substrate coated with the Ag precursor is dipped into an oil-in-water emulsion with the PDMS as the oil phase and aqueous reductant solution as the water phase while the curing agent of PDMS as the emulsifier. Ag precursor is reduced to Ag nanoparticles (AgNPs), while at the same time, the water evaporation produces the porous structure on the surface, and PDMS is served as both the interfacial adhesion agent and low surface energy agent. The obtained superhydrophobic and anti-corrosive AgNPs@PDMS coating possess a high electrically conductivity (up to 102 S/cm) and hence excellent Joule heating performance. The coating shows stable conductivity and superhydrophobicity after it experiences abrasion, bending, acid and ultrasonication treatment, performing outstanding stability and durability. Even exposed to a high temperature of 120 °C for 10 h, the AgNPs@PDMS coating can keep its water contact angle and conductivity unchanged, displaying a high temperature tolerance. The AgNPs@PDMS can also be coated onto the elastic polymer fabric and foam to fabricate strain and piezoresistive sensors with a large working strain range, high sensitivity, ignorable sensing hysteresis and excellent reusability.

具有多功能性的超疏水导电涂层具有广阔的应用前景，尤其是在柔性电子领域；然而，开发具有优异耐久性、耐高温性和耐腐蚀性的多功能涂层仍然是一个挑战。在这里，首次提出了一种基于乳液浸渍的新型策略来制备超疏水智能涂层。将涂有Ag前驱体的基材浸入以PDMS为油相、还原剂水溶液为水相、PDMS固化剂为乳化剂的水包油乳液中。Ag 前驱体被还原为 Ag 纳米粒子 (AgNPs)，同时水分蒸发在表面产生多孔结构，PDMS 既用作界面粘合剂又用作低表面能剂。获得的超疏水和抗腐蚀的 AgNPs@PDMS 涂层具有高电导率（高达 102 S/cm），因此具有优异的焦耳热性能。该涂层经过磨损、弯曲、酸和超声波处理后显示出稳定的导电性和超疏水性，具有出色的稳定性和耐久性。即使暴露在 120°C 的高温下 10 小时，AgNPs@PDMS 涂层也能保持其水接触角和电导率不变，表现出耐高温。AgNPs@PDMS还可以涂覆在弹性聚合物织物和泡沫上，以制造具有大工作应变范围、高灵敏度、可忽略传感滞后和优异重复使用性的应变和压阻传感器。