Humidity-adaptive,mechanically robust,and recyclable bioplastic films amplified by nanoconfined assembly

作     者：Siheng Wang Lei Zhang Zhuomin Wang Zhanqian Song He Liu Ziqi Tian Xu Xu 

作者机构：Key Laboratory of Biomass Energy and MaterialJiangsu Province/Key Laboratory of Chemical Engineering of Forest ProductsNational Forestry and Grassland Administration/National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass/Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest ResourcesInstitute of Chemical Industry of Forest ProductsChinese Academy of ForestryNanjingChina Jiangsu Co–Innovation Center of Efficient Processing and Utilization of Forest ResourcesCollege of Chemical EngineeringNanjing Forestry UniversityNanjingChina Zhejiang Key Laboratory of Advanced Fuel Cells and Electrolyzers TechnologyNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingboChina 

出 版 物：《Aggregate》 (聚集体(英文))

年 卷 期：2024年第5卷第6期

页      面：447-459页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：National Natural Science Foundation of China,Grant/Award Number:31890774 Forestry Science and Technology Innovation and Extension Project of Jiangsu Province,Grant/Award Number:LYKJ04 

主　　题：aggregated composites humidity-adaptive plastics mechanically robust nanoconfined recyclable bioplastic films 

摘      要：Poly(vinyl alcohol)(PVA)is biodegradable,recyclable,and has high tensile ***,it is ideal for the development of environment-friendly sustainable ***,at elevated humidity,the mechanical properties of PVA bioplastic films undergo degradation owing to their intrinsic hydrophilic and hygroscopic nature,hindering their *** study proposes a nanoconfined assembly strategy to produce humidity-adaptive,mechanically robust,and recyclable bioplastic *** strong hydrogen bonds between PVA and cellulose nanofibrils inhibit the penetration of water molecules into the film to promote humidity ***,the robust coordination interactions between bentonite nanoplates,PVA,and cellulose nanofibrils restrict the slip of polymer chains during deformation,leading to enhanced mechanical *** from the nanoconfined assembly architecture in aggregated composites,the resulting reinforced PVA film simultaneously exhibits strength,stiffness,toughness,fracture energy,and tearing energy of 55.9 MPa,1,275.6 MPa,162.9 MJ m^(−3),630.9 kJ m^(−2),and 465.0 kJ m^(−2),***,the film maintains a strength of approximately 48.7 MPa even at 80%relative humidity for 180 *** efficient design strategy applies to diverse scales and structured cellulose ***,it facilitates the application of recyclable high-performance bioplastic films to settings that require high humidity tolerance.