Conductive foam composites (CFCs) based pressure sensors show promising applications in flexible electronics, but it is still difficult to develop cost-effective methods for preparation of multifunctional CFC pressure sensors with a large working strain and environment tolerance. Herein, a facile “carbon nanotubes (CNTs) decoration and simultaneous hydrophobization” method is proposed to fabricate electrically conductive and superhydrophobic foam composites. CNTs/stearic acid (SA) are anchored onto the skeleton of the partially swelled styrene-butadiene rubber (SBR) foam via one step ultrasound-assisted interface sintering. The obtained superhydrophobic SA/CNTs decorated foam composites (SCFCs) with strong interfacial adhesion exhibit outstanding corrosion resistance and durability. SCSF piezoresistive sensors show a wide compressive strain sensing range (10–95 %) and a great durability over 11,000 cycles and can work normally in underwater or even corrosive conditions. In addition, SCFCs possess excellent photothermal conversion performance and their resistance exhibits negative temperature coefficiency, making them promising as temperature sensors.

中文翻译：

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用于多功能压阻传感器的界面膨胀工程超疏水和导电涂层

基于导电泡沫复合材料（CFC）的压力传感器在柔性电子领域显示出广阔的应用前景，但开发具有高工作应变和环境耐受性的多功能CFC压力传感器的经济有效的方法仍然很困难。在此，提出了一种简便的“碳纳米管（CNT）装饰和同时疏水化”方法来制造导电和超疏水泡沫复合材料。通过一步超声辅助界面烧结，将碳纳米管/硬脂酸（SA）固定在部分膨胀的丁苯橡胶（SBR）泡沫的骨架上。所得超疏水SA/CNTs装饰泡沫复合材料(SCFCs)具有强界面附着力，表现出优异的耐腐蚀性和耐久性。 SCSF压阻传感器具有较宽的压缩应变传感范围（10-95%）和超过11,000次循环的出色耐用性，并且可以在水下甚至腐蚀条件下正常工作。此外，SCFC具有优异的光热转换性能，其电阻表现出负温度系数，使其作为温度传感器很有前景。