Electrostatic Flocking: Reborn to Embrace Multifunctional Applications

Electrostatic flocking, traditionally used in decoration, has recently found emerging applications in diverse fields such as sensors, tissue engineering, evaporators and thermal management. By attaching high aspect ratio fibers onto a substrate through electrostatic flocking, it enables large‐scale control of fiber orientation, resulting in fibrous, porous, or furry structures with several benefits, including enhanced microforce detection sensitivity, large specific surface area, improved reflection/absorption, increased surface roughness, anisotropic surfaces, and strengthened mechanical properties. While challenges remain in achieving highly customized pattern for functional materials, electrostatic flocking holds promise in replicating natural fluffy structures, such as villi and cilia, which could lead to superior performance in biomimetic and functional applications. Despite recent significant progress, a comprehensive review on this technology for cutting‐edge applications is still lacking. This review aims to provide an in‐depth analysis of electrostatic flocking's broader applications and investigates the potential future of electrostatic flocking at the forefront of functional materials by examining the relationship between structure and performance in advanced materials. It begins with an overview of the technology's principles, followed by an exploration of its applications and morphological advantages, and concludes with a discussion of challenges, material selection, structural design, and future directions for this innovative technology.