文献类型：期刊文献

英文题名：Thermal and Mechanical Properties of Bamboo Fiber Reinforced Epoxy Composites

作者：Zhang, Kai[1];Wang, Fangxin[1];Liang, Wenyan[1];Wang, Zhenqing[1];Duan, Zhiwei[1];Yang, Bin[2]

机构：[1]Harbin Engn Univ, Coll Aerosp & Civil Engn, Harbin 150001, Heilongjiang, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：10

期号：6

外文期刊名：POLYMERS

收录：;EI(收录号：20182305294089);WOS:【SCI-EXPANDED(收录号:WOS:000436560200045)】；

基金：The National Natural Science Foundation of China (No. 11302054, 11532013), Natural Science Foundation of Heilongjiang Province of China (No. A2015012) and Fundamental Research Funds for the Central Universities (No. HEUCF170204) are acknowledged for financial support.

语种：英文

外文关键词：fiber-matrix composites (FMCs); alkali treated bamboo fiber; mechanical properties; thermal properties

摘要：Bamboo fibers demonstrate enormous potential as the reinforcement phase in composite materials. In this study, in order to find suitable NaOH concentration for bamboo fiber treatment, bamboo fibers were treated with 2 wt.%, 6 wt.% and 10 wt.% NaOH solutions for 12 h, respectively. We determined that 6 wt.% NaOH treated bamboo fibers were optimal for the fabrication of bamboo fiber composites by single fiber tensile test, single fiber pull-out test, Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The short length bamboo fibers treated with 6 wt.% NaOH solutions were well dispersed in the epoxy matrix by a new preparation method. The effect of fiber content and fiber length on the mechanical behavior of bamboo fiber reinforced epoxy composites was investigated. The results confirmed that fracture toughness and flexural modulus of the composites monotonically increased with fiber length and content. However, for all samples, composites showed negligible difference on the flexural strength. The fracture surfaces of the composites were observed by SEM, revealing that fiber breakage, matrix cracking, debonding, and fiber pull out were major failure types. In addition, thermogravimetric analysis (TGA) was carried out to investigate the thermal behavior of both bamboo fibers and composites.