Zhang Yutong, Tao Lixue, Zhao Lebin, Dong Chaohong, Liu Yun, Zhang Kaitao, Liimatainen Henrikki
Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), College of Textiles and Clothing, Qingdao University, Ningxia Road, 308, Qingdao 266071, China.
Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China.
J Colloid Interface Sci. 2024 Dec 15;676:61-71. doi: 10.1016/j.jcis.2024.07.111. Epub 2024 Jul 14.
Biogenic, sustainable two-dimensional architectures, such as films and nanopapers, have garnered considerable interest because of their low carbon footprint, biodegradability, advanced optical/mechanical characteristics, and diverse potential applications. Here, bio-based nanopapers with tailored characteristics were engineered by the electrostatic complexation of oppositely charged colloidal phosphorylated cellulose nanofibers (P-CNFs) and deacetylated chitin nanocrystals (ChNCs). The electrostatic interaction between anionic P-CNFs and cationic ChNCs enhanced the stretchability and water stability of the nanopapers. Correspondingly, they exhibited a wet tensile strength of 17.7 MPa after 24 h of water immersion. Furthermore, the nanopapers exhibited good thermal stability and excellent self-extinguishing behavior, triggered by both phosphorous and nitrogen. These features make the nanopapers sustainable and promising structures for application in advanced fields, such as optoelectronics.
生物源的、可持续的二维结构，如薄膜和纳米纸，因其低碳足迹、生物可降解性、先进的光学/机械特性以及多样的潜在应用而备受关注。在此，通过带相反电荷的胶体磷酸化纤维素纳米纤维（P-CNFs）和脱乙酰几丁质纳米晶体（ChNCs）的静电络合，设计出了具有定制特性的生物基纳米纸。阴离子P-CNFs和阳离子ChNCs之间的静电相互作用增强了纳米纸的拉伸性和水稳定性。相应地，它们在水浸24小时后表现出17.7兆帕的湿拉伸强度。此外，纳米纸表现出良好的热稳定性和由磷和氮引发的优异自熄行为。这些特性使纳米纸成为在光电子学等先进领域应用的可持续且有前景的结构。
