文献类型：期刊文献

英文题名：Preparation of wood scrimber with low hygroscopicity and high flame retardancy through impregnation of silicon-boron inorganic salt

作者：Song, Feifan[1,2] Xu, Xiaonan[2] Jiang, Peng[1] Chen, Zhilin[1] Jia, Hongyu[1] Yu, Wenji[1] Wang, Lihua[1]

第一作者：Song, Feifan

通信作者：Jiang, P[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Xiangshan Rd, Beijing 100091, Peoples R China;[2]China Univ Min & Technol Beijing, Sch Emergency Management & Safety Engn, Beijing 100083, Peoples R China

年份：2025

卷号：467

外文期刊名：CONSTRUCTION AND BUILDING MATERIALS

收录：;EI(收录号：20250817902484);Scopus(收录号：2-s2.0-85217959191);WOS:【SCI-EXPANDED(收录号:WOS:001428235500001)】；

基金：The authors wish to thank the National Key R & D Program of China (2023YFC3010102) , National Natural Science Foundation of China (No. 32301524) and National Forestry public welfare industry research project (CAFYBB2021ZX001) for their financial contributions.

语种：英文

外文关键词：Wood scrimber; Flame retardance; Hygroscopic properties; Sodium silicate, borax

摘要：Wood scrimber, known for its structural stability, strength, and efficient material utilization, faces significant flammability challenges that limit its application in construction and outdoor environments. To enhance fire safety in construction and meet building codes requirements, flame retardant treatment of wood scrimber is essential. Inspired by the honeycomb structure formed by propolis, beeswax, and intricate arrangements, flameretardant wood scrimber materials were fabricated using phenolic resin adhesive, a flame retardant agent composed of a 1:1 mixture of sodium silicate (9-hydrate) and sodium tetraborate decahydrate, along with defibrated wood scrimber units. The treated wood scrimber exhibited self-extinguishing properties upon flame removal, with a 31 % reduction in peak heat release rate (pk-HRR2), a 14.9 % reduction in total heat release (THR), a 38 % reduction in peak smoke production rate (pk-SPR), and a 43.7 % reduction in total smoke release (TSR), demonstrating a synergistic fire retardant effect between the silicon and boron compounds. Characterization through infrared spectral analysis (FTIR) and X-ray photoelectron spectroscopy (XPS) revealed that the cross-linked structure formed by sodium silicate and boric acid with the wood creates a dense char layer in the porous voids of the wood. The release of crystalline water at high temperatures further enhanced fire retardancy and reduced smoke production. This method holds promise for large-scale applications in construction and interior decoration, offering both fire resistance and low smoke emission.