Abstract
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.
| Original language | English |
|---|---|
| Article number | 120204 |
| Journal | Carbohydrate Polymers |
| Volume | 299 |
| Early online date | 11 Oct 2022 |
| DOIs | |
| Publication status | Published - 1 Jan 2023 |
Funding
This work was financially supported by the National Natural Science Foundation of China (No. 22108087 ), the Fundamental Research Funds for the Central Universities (No. 2020ZYGXZR066 ), the Guangdong Basic and Applied Basic Research Foundation (No. 2020B1515120038 and 2020A1515110004 ), the Science and Technology Planning Project of Guangzhou City (No. 202102020007 ) and the MCIN/AEI/10.13039/501100011033 (Spain, project PID2019-105479RB-I00 ).
Keywords
- AgNPs
- Gas barrier
- High-strength composites
- MXene
- Nacre-like
- Nanocellulose films
ASJC Scopus subject areas
- Polymers and Plastics
- Organic Chemistry
- Materials Chemistry