Abstract Sustainable, cost-effective and ecologically compatible materials derived from renewable natural resources have attracted a tremendous level of attention as replacements for a broad array of volume commercial materials based on petroleum-derived compounds. In the present study, we demonstrate ternary polysaccharide polyelectrolyte complex (PPC) materials consisting of crystalline nanocellulose (CNC), chitosan (CS) and carboxymethyl cellulose (CMC) produced via an immediate high-shear homogenization process. Ionically cross-linked CS and CMC behaved as the continuous matrix and CNC was incorporated as a nanoreinforcement. The developed PPC materials exhibited homogeneous, compact morphological features and enhanced mechanical and barrier properties, ascribed to the even distribution and good interfacial compatibility of CNC within the CS/CMC matrix. PPC films with 10 wt% CNC content showed tensile strength and Young's modulus of 60.6 MPa and 4.7 GPa, respectively, and water vapor transportation rate of 7982 g μm m−2 d−1. In addition, PPC composites containing

中文翻译：

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基于结晶纳米纤维素/壳聚糖/羧甲基纤维素聚电解质复合物的改进的环保屏障材料

摘要 源自可再生自然资源的可持续、经济高效且生态相容的材料作为基于石油衍生化合物的大量商业材料的替代品引起了极大的关注。在本研究中，我们展示了由结晶纳米纤维素 (CNC)、壳聚糖 (CS) 和羧甲基纤维素 (CMC) 组成的三元多糖聚电解质复合物 (PPC) 材料，该材料通过即时高剪切均化过程生产。离子交联的 CS 和 CMC 表现为连续基质，CNC 被纳入作为纳米增强剂。开发的 PPC 材料表现出均匀、紧凑的形态特征和增强的机械和阻隔性能，归因于 CS/CMC 矩阵内 CNC 的均匀分布和良好的界面兼容性。CNC 含量为 10 wt% 的 PPC 薄膜的拉伸强度和杨氏模量分别为 60.6 MPa 和 4.7 GPa，水蒸气传输率为 7982 g μm m-2 d-1。此外，PPC 复合材料含有