Hybrid‐Filler Stretchable Conductive Composites: From Fabrication to Application. Issue 6 (13th May 2021)

• Record Type: Journal Article
• Authors: Yun, Guolin; Tang, Shi-Yang; Lu, Hongda; Zhang, Shiwu; Dickey, Michael D.; Li, Weihua
• Is Part Of: Small science. Volume 1:Issue 6(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-05-13
• Subjects: conductive composites -- hybrid fillers -- stretchable composites -- stretchable electronics; Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.5
• DOI: 10.1002/smsc.202000080
• Languages: English
• ISSNs: 2688-4046

Abstract

Abstract : Stretchable conductive composites (SCCs) are generally elastomer matrices filled with conductive fillers. They combine the conductivity of metals and carbon materials with the flexibility of polymers, which are attractive properties for applications such as stretchable electronics, wearable devices, and flexible sensors. Most conventional conductive composites that are filled with only one type of conductive filler face issues in mechanical and electrical properties. Recently, some studies introduced secondary fillers to create hybrid‐filler SCCs to solve these problems. The secondary fillers produce a synergistic effect with the primary fillers to enhance the electrical conductivity of the composites. They also improve the thermal conductivity and mechanical properties or impart composites with special functions like catalysis and self‐healing. Herein, the fabrication methods, stretchability enhancement strategies, and piezoresistivity of SCCs are analyzed, and their latest applications in stretchable electronics are introduced. Finally, the challenges and prospects of their development are discussed. Abstract : The stretchable conductive composites (SCCs), which are composed of conductive fillers and polymer matrices, combine the conductivity of fillers with the stretchability of polymers. They are therefore widely used in stretchable electronics. To further improve the properties of SCCs, attention to hybrid‐filler SCCs is increasing. Herein, the latest developments in hybrid‐filler SCCs from fabrication to application are detailed.