文献类型：期刊文献

英文题名：Structural, chemical, and multi-scale mechanical characterization of waste windmill palm fiber (Trachycarpus fortunei)

作者：Li, Jing[1,2,3,4] Zhang, Xuexia[5] Zhu, Jiawei[2,3,4] Yu, Yan[5] Wang, Hankun[2,3,4]

第一作者：Li, Jing

通信作者：Wang, HK[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Key Lab Wood Sci & Technol Natl Forestry & Grassl, Beijing, Peoples R China;[2]Int Ctr Bamboo & Rattan, Dept Biomat, Beijing, Peoples R China;[3]SFA, Beijing, Peoples R China;[4]Beijing Cobuilt Key Lab Bamboo & Rattan Sci & Tec, Beijing, Peoples R China;[5]Fujian Agr & Forestry Univ, Coll Mat Engn & Engn, Fuzhou 350002, Peoples R China

年份：2020

卷号：66

期号：1

外文期刊名：JOURNAL OF WOOD SCIENCE

收录：;EI(收录号：20200608135765);Scopus(收录号：2-s2.0-85078886960);WOS:【SCI-EXPANDED(收录号:WOS:000512007200001)】；

基金：This work was supported by Basic Scientific Research Funds of International Center for Bamboo and Rattan (1632018017) and the 12th five years key technology R&D program (2015BAD04B03).

语种：英文

外文关键词：Windmill palm fiber; Fiber morphology; Mechanical properties; Nanoindentation

摘要：This study investigated the structural, chemical, and multi-scale mechanical properties of windmill palm (Trachycarpus fortunei) leaf sheath fiber, which were frequently wasted. Significant variation was observed in fiber diameter and cross-sectional morphology among different layers in a single leaf sheath, whereas the chemical composition, relative crystallinity index, and the microfibrillar angle (MFA) of palm fibers were almost the same among different layers. Windmill palm fibers had low cellulose contents (34.70-35.5%), low relative crystallinity index (45.7-49.2%), and high MFA (38.8 degrees-29.4 degrees), resulting in low strength and modulus, but high failure strain under tensile load. The tensile fracture surface of windmill palm fibers was assessed through SEM studies and its ductile fracture was confirmed, which can potentially enhance the toughness of composites when used as reinforcement material. Nanoindentation was carried out among different leaf sheath layers, and the results showed the modulus and hardness values of windmill palm fibers are in the same range as other plant fibers. The experimental results may help guide selection of suitable reinforcing fibers for use in composites in different applications.