文献类型：期刊文献

英文题名：Transformation of Bamboo: From Multiscale Fibers to Robust and Degradable Cellulose-Based Materials for Plastic Substitution

作者：Hu, Juan[1,2] Zhang, Yahui[1] He, Yingqi[1] Su, Zhitao[1] Lao, Wanli[1] Zhang, Shaodi[1] Yu, Yanglun[1] Yu, Wenji[1] Huang, Yuxiang[1]

第一作者：Hu, Juan

通信作者：Huang, YX[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Beijing Forestry Univ, Beijing Key Lab Wood Sci & Engn, Beijing 100083, Peoples R China

年份：2025

外文期刊名：SMALL

收录：;EI(收录号：20252018440448);Scopus(收录号：2-s2.0-105005190138);WOS:【SCI-EXPANDED(收录号:WOS:001470702300001)】；

基金：J.H. and Y.Z. contributed equally to this work. This work was supported by the Fundamental Research Funds of CAF (CAFYBB2023QB008, CAFYBB2022QA004). The authors acknowledge Beijing Zhongkebaice Technology Service Co., Ltd. for the characterization results.

语种：英文

外文关键词：bamboo cellulose-based materials; macro-nano structure; multiscale interface engineering; physicochemical double cross-linking; plastic

摘要：Bamboo is an ideal candidate to replace traditional plastics, reduce environmental pollution, and promote harmony between nature and humanity owing to its rapid growth and renewability. However, achieving arbitrary shape-shifting of bamboo while retaining its high strength and degradability remains challenging. This study uses multiscale interface engineering to transform bamboo into a robust, biodegradable, and moldable bamboo cellulose-based material. First, natural bamboo is deconstructed into cellulose fibers, including macro- and nanofibers. Subsequently, the fibers are constructed into high-performance materials using physical and chemical methods, such as surface charge treatment, ion cross-linking, and dense hydrogen bonding networks. The prepared multiscale bamboo cellulose-based materials exhibit excellent properties, with a high specific strength (approximate to 271.8 kN m kg-1), high impact toughness (approximate to 58 kJ m-2), low thermal expansion coefficient (1.19 x 10-6 K-1), excellent formability and biodegradability, and minimal environmental impacts. These properties are superior to those of current commercial plastics and other biomass-derived structural materials. Furthermore, the mechanical properties of the materials can be customized by adjusting the layup configuration, enabling a transition from anisotropic to isotropic characteristics. This transformation demonstrates the significant potential of bamboo for plastic substitution and advances the development of environmentally friendly materials.