文献类型：期刊文献

英文题名：Effect of Compression Ratios on the Sorption Behavior of Bamboo Fiber Based Composites

作者：Zhang, Yamei[1,3] Lu, Qin[2] Yu, Yanglun[1] Yu, Wenji[1,3]

第一作者：张亚梅

机构：[1] Research Institute of Wood Industry, Chinese Academy of Forestry, China; [2] Hongya Bambooera Technology Co., Ltd., China; [3] Research Institute of Wood Industry, Chinese Academy of Forestry, Xiang Shan Road, Haidian District, Beijing, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230067586)

语种：英文

外文关键词：Compression ratio (machinery) - Moisture - Moisture determination - Pore structure - Water absorption

摘要：The sorption behaviors of Neosinocalamus affinis bamboo fiber based composites (BFC) with compression ratios of 1.50, 1.83 and 2.17 were studied, aiming to optimize the manufacturing process of BFC. The results showed that the hygroscopicity of BFC decreased compared with that of raw bamboo, but increased with increasing compression ratio when the relative humidity (RH) was above 60% owing to the increased poly-layer water content. The moisture absorption model of bamboo and BFC with different compression ratios were mainly changed by the different pore structures, chemical compositions and wettability. The compression and densification of bamboo and the introduction of phenolic formaldehyde (PF) resin into the bamboo cell lumens, pits and gaps decreased the porosity, the water absorption space of cell wall and the water transfer pathway. Meanwhile, the hygroscopic groups decreased and the BFC surface became much more hydrophobic for the BFC with higher compression ratio. ? 2023, The Authors. All rights reserved.