Research Progress on Functionalization Modification of Bamboo Fibers for Conductivity and Its Application in the Flexible Electronics Field

Abstract

Bamboo resources hold significant potential for widespread application in the flexible electronics field after conductive modification. However, untreated bamboo has singular functionality and a limited application scope. By removing lignin to disrupt its inherent dense network and expose the active sites of bamboo fibers, conditions can be created for the conductive functionalization modification of bamboo. Currently, delignified bamboo fiber conductive functional materials have achieved diverse applications in fields such as energy storage devices and flexible wearable equipment, promoting the transformation of bamboo into high-performance, high-value-added materials. This paper first introduces the structural composition of bamboo, then delves into delignification pretreatment methods and the approaches for conductive functionalization modification of delignified bamboo fibers. Furthermore, it provides a comprehensive review of their research progress in the flexible electronics field, including supercapacitors and sensors. Finally, the current bottlenecks in the preparation and application of delignified bamboo fibers are summarized.