纳米纤维素
材料科学
扩散阻挡层
透氧性
生物相容性
化学工程
细菌纤维素
复合材料
制作
纳米技术
气体扩散
纤维素
化学
氧气
有机化学
图层(电子)
工程类
冶金
医学
替代医学
病理
燃料电池
作者
Shuwei Tang,Zhengguo Wu,Xiaoyun Li,Fengwei Xie,Dongdong Ye,Eduardo Ruiz‐Hitzky,Lansheng Wei,Xiaoying Wang
标识
DOI:10.1016/j.carbpol.2022.120204
摘要
Super strength and high barrier properties are the bottleneck of the application of cellulose film materials. Herein, it is reported a flexible gas barrier film with nacre-like layered structure, in which 1D TEMPO-oxidized nanocellulose (TNF) and 2D MXene self-assembled to form an interwoven stack structure with 0D AgNPs filling the void space. The strong interaction and dense structure endowed TNF/MX/AgNPs film with mechanical properties far superior to PE films and acid-base stability. Importantly, the film presented ultra-low oxygen permeability confirmed by molecular dynamics simulations and better barrier properties to volatile organic gases than PE films. It is here considered the tortuous path diffusion mechanism of the composite film responsible for the enhanced gas barrier performance. The TNF/MX/AgNPs film also possessed antibacterial properties, biocompatibility and degradability (completely degraded after 150 days in soil). Collectively, the TNF/MX/AgNPs film brings innovative insights into the design and fabrication of high-performance materials.
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