文献类型：期刊文献

英文题名：Bamboo cellulose fibers prepared by different drying methods: Structure-property relationships

作者：Zhang, Shaodi[2] Lin, Qiuqin[1] Wang, Xueyuan[2] Yu, Yanglun[1] Yu, Wenji[1] Huang, Yuxiang[1]

第一作者：Zhang, Shaodi

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, MOE Key Lab Wooden Mat Sci & Applicat, Beijing 100083, Peoples R China

年份：2022

卷号：296

外文期刊名：CARBOHYDRATE POLYMERS

收录：;EI(收录号：20223112468687);Scopus(收录号：2-s2.0-85135108933);WOS:【SCI-EXPANDED(收录号:WOS:000860754400004)】；

基金：This work was financially supported by the National Natural Science Foundation of China (No. 32001380) . We acknowledge Beijing Zhong- kebaice Technology Service Co., Ltd. for the characterization results.

语种：英文

外文关键词：Bamboo cellulose fiber; Drying methods; Supramolecular structure; Porous structure; Tensile strength

摘要：Bamboo cellulose fibers (BCFs) has attracted increasing attention in many fields due to its high mechanical strength and interconnected porous structure. Drying is a key factor that determines the final structure and properties of BCFs. In this work, three kinds of BCFs, i.e., conventional-dried (CD-BCFs), freeze-dried (FD-BCFs), and supercritical CO2-dried (SD-BCFs), were prepared via different drying methods. The effects of drying methods on their supramolecular structure, porosity, and mechanical properties were studied, and the structure -property relationships were proposed. The CD-BCFs composed of well-aligned crystalline nanofibrils with a dense structure exhibited the best mechanical properties (tensile strength of 854.54 MPa). The SD-BCFs featured with interconnected 3D microfibril networks give a highly porous structure and the highest surface area of 9.162 m(2)/ g. The FD-BCFs showed medium mechanical properties and surface area owing to the stacked lamellar microfibril network. This work provides guidelines for designing BCFs with proper structure for various end-use applications.