A tough, biodegradable and water-resistant plastic alternative from coconut husk

Bioplastics from lignocellulosic biomass have gained great interests due to its renewable nature and biodegradability. However, poor mechanical performance water stability limit their practical applications. Plastic resins are normally required bond the compounds. In this work, a high-performance bioplastic coconut husk is developed via simple top-down resin-free approach; fragments directly processed into bioplastics through partial removal of lignin, followed by hot-pressing. By optimization delignification conditions, generated achieve tensile Young's modulus 2.1 ± 0.4 GPa strength 22.8 4.4 MPa. More importantly, these show excellent (up 28 days soaking) decent microbial Furthermore, potential use demonstrated as solid planar substrates for miniaturized, disposable electrochemical biosensors. This work provides promising green approach prepare strong, wet-stable, biodegradable solution replace petroleum-based plastics.