文献类型：期刊文献

英文题名：Improvement of the water repellency, dimensional stability, and biological resistance of bamboo-based fiber reinforced composites

作者：Meng, Fandan[1] Liu, Ru[1] Zhang, Yahui[1] Huang, Yuxiang[1] Yu, Yanglun[1] Yu, Wenji[1]

第一作者：Meng, Fandan

通信作者：Yu, YL[1]|[a0005b92a29b9f40edd99]余养伦;

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, State Forestry Adm, Key Lab Wood Sci & Technol, Beijing 100091, Peoples R China

年份：2019

卷号：40

期号：2

起止页码：506-513

外文期刊名：POLYMER COMPOSITES

收录：;EI(收录号：20175004532137);Scopus(收录号：2-s2.0-85037612897);WOS:【SCI-EXPANDED(收录号:WOS:000458384800008)】；

基金：Contract grant sponsor: National Natural Science Foundation of China; contract grant number: 31470591.

语种：英文

外文关键词：Bamboo - Cells - Cytology - Decay (organic) - Ethers - Fiber reinforced plastics - Fibers - Phenolic resins - Plastic products - Resins - Scanning electron microscopy - Transmission electron microscopy

摘要：In this study, a novel composite was fabricated based on phenol-formaldehyde (PF) resin and bamboo fiber bundles. Various characterization techniques including fluorescence microscope, scanning electron microscopy coupled with energy-dispersive X-ray, and transmission electron microscope were used to investigate the distribution of fibers and infiltration of PF resin. The water repellency, dimensional stability, and decay resistance against both white-rot (Trametes versicolor) and brown-rot (Gloeophyllum trabeum) of the composites were also tested. The results showed that the resin not only deposited on the fibers surface, but also entered into the cellular wall and cell lumina through the pits. A great amount of resin was found in cracks and middle lamella of cell wall in resin impregnated bamboo fiber bundles owing to the mechanical defibering process. After thermal compressing, the bamboo cells were densified. The resin was redistributed in cell lumen and glue-joints were formed. Some chemical reactions occurred between PF and bamboo by formation of aromatic esters and ether bonds, and the ether bonds were dominant. Thus, significant improvements in water repellency, dimensional stability, and biological resistance were achieved. These results suggested the composites can be used in exterior applications where high levels of water repellency and fungi resistance were required. POLYM. COMPOS., 40:506-513, 2019. (c) 2017 Society of Plastics Engineers