Conductive Superhydrophobic Smart Coatings Based on Spherical Silver Nanoparticles and Waterborne Polyurethane for Flexible and Wearable Electronics

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(47), С. 65553 - 65564

Опубликована: Ноя. 18, 2024

The development of flexible smart conductive fabrics is crucial for applications in healthcare and signal transmission during hazardous rescue operations. However, environmental challenges such as moisture, dirt, mechanical abrasion, bacteria can significantly impair their electronic performance. Herein, we introduce a novel two-layered coating strategy that integrates silver nanoparticles (Ag NPs) modified silica (QSi) with waterborne polyurethane (WPU) to develop multifunctional superhydrophobic coatings. inner composite layer, combining WPU Ag NPs, guarantees high conductivity (5.22 S·cm–1) durability. outer shell created by spraying mixture QSi, provides robust barrier, maintaining water contact angle above 150° resistance below 80 Ω even after 200 kneading cycles. Additionally, the coated fabric exhibits satisfactory self-cleaning, antifouling, low adhesion (32.95 μN), drag reduction (supporting approximately 11 times its weight on water), appreciable antibacterial activity (>99.99%), ensuring long-term stability harsh conditions. By integrating superhydrophobicity, flexibility, wearability, this presents promising precise underwater detection, monitoring swimming movements or finger bending, while also offering safety alert signals challenging wet environments.

Язык: Английский

Ultra-elastic conductive silicone rubber composite foams for durable piezoresistive sensors via direct ink writing three-dimensional printing

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 158733 - 158733

Опубликована: Дек. 1, 2024

Язык: Английский