Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, 114 28, Sweden.
Wallenberg Wood Science Centre, KTH Royal Institute of Technology, Stockholm, 114 28, Sweden.
Adv Mater. 2021 Jul;33(28):e2001474. doi: 10.1002/adma.202001474. Epub 2020 Aug 7.
The current knowledge about the formation of layer-by-layer (LbL) self-assemblies using combinations of nanocelluloses (NCs) and polyelectrolytes is reviewed. Herein, the fundamentals behind the LbL formation, with a major focus on NCs, are considered. Following this, a special description of the limiting factors for the formation of LbLs of only NCs, both anionic and cationic, and the combination of NCs and polyelectrolytes/nanoparticles is provided. The ability of the NCs and polyelectrolytes to form dense films with excellent mechanical properties and with tailored optical properties is then reviewed. How low-density, wet stable networks of cellulose nanofibrils can be used as substrates for the preparation of antibacterial, electrically interactive, and fire-retardant materials by forming well-defined LbLs inside these networks is then considered. A short outlook of the possible uses of LbLs containing NCs is given to conclude.
本文综述了利用纳米纤维素（NCs）和聚电解质组合形成层层（LbL）自组装的最新知识。文中考虑了 LbL 形成的基本原理，重点介绍了 NCs。接下来，特别描述了仅由 NCs（阴离子和阳离子）以及 NCs 和聚电解质/纳米粒子组合形成 LbL 的限制因素。然后综述了 NCs 和聚电解质形成具有优异机械性能和可调光学性能的致密薄膜的能力。接下来考虑了如何通过在这些网络内形成定义明确的 LbL，将低密度、湿稳定的纤维素纳米纤维网络用作制备具有抗菌、电相互作用和阻燃性能的材料的基底。最后给出了含有 NCs 的 LbL 的可能用途的简要展望。
