文献类型：期刊文献

英文题名：Mechanism Analysis of Thermal Treatment for the Mechanical Properties of Bamboo Fiber-Based Composites

作者：Huang, Yuxiang[2] Lin, Qiuqin[2] Dai, Linxin[1] Gao, Qi[2] Wang, Xueyuan[3] Liu, Shiqin[2] Yu, Wenji[2] Ma, Jianfeng[1]

第一作者：黄宇翔

机构：[1] Key Laboratory of Bamboo and Rattan Science & Technology, State Forestry and Grassland Administration of China, International Center for Bamboo and Rattan, Beijing, 100102, China; [2] Research Institute of Wood Industry, Chinese Academy of Forestry, Haidian, Beijing, 100091, China; [3] MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Qinghua Eastroad 35, Beijing, 100083, China

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20220321693)

语种：英文

外文关键词：Crystal structure - Crystallinity - Fibers - Heat treatment - Tensile strength

摘要：High-performance bamboo fiber-based composites (BFBC) is a typical application to achieve high efficiency of bamboo for sustainable engineering. As the important pretreatment during the manufacture process of BFBC to improve its dimensional stability and weather resistance, thermal treatment would weaken mechanical properties, whose influence mechanism has not been determined. Herein, we mainly focus on the main bearing substance of BFBC- bamboo cellulosic fibers (BCFs), to clarify the relationship between the macroscopic mechanical properties of BFBC and microstructure of BCFs by studying their microscopic mechanical properties, crystal structure, and degree of polymerization (DP) under thermal treatment at 140 °C and 200 °C. With the temperature increased, the diameter and orientation of BCFs basically remain unchanged, the crystallinity increases slightly, but the DP of cellulose is decreased, which lead to the decrease of tensile strength of BCFs. The macroscopic mechanical properties of BFBC are positively correlated with the micromechanical properties of BCFs. ? 2022, The Authors. All rights reserved.