Abstract：
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.
摘要：
生物，可持续的二维建筑，如薄膜和纳米纸，因为它们的低碳足迹而引起了相当大的兴趣，生物降解性，先进的光学/机械特性，和不同的潜在应用。这里,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，设计了具有定制特征的生物基纳米纸。阴离子P-CNF和阳离子ChNC之间的静电相互作用增强了纳米纸的可拉伸性和水稳定性。相应地,他们表现出的湿拉伸强度为17.7兆帕后24小时的水浸。此外，纳米纸表现出良好的热稳定性和优异的自熄灭行为，由磷和氮触发。这些特点使纳米纸的可持续和有前途的结构在先进领域的应用，如光电子。
