文献类型：期刊文献

英文题名：Flame-Retardant Wood Scrimber/Plywood Composites: Preparation, Characterization, and Enhanced Structural Performance

作者：Yao, Liyuan[1] Song, Feifan[1,2] Wei, Ming[3] Wang, Aijuan[4] Xu, Xiaonan[1] Chen, Zhilin[2] Rong, Rui[1] Jiang, Peng[2]

第一作者：Yao, Liyuan

通信作者：Jiang, P[1]

机构：[1]China Univ Min & Technol, Sch Emergency Management & Safety Engn, Beijing 100083, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Xiangshan Rd, Beijing 100091, Peoples R China;[3]Shandong Xingang Enterprise Grp Co Ltd, Nanfang Rd, Linyi 276002, Peoples R China;[4]Univ Orleans, INSA Ctr Val Loire, PRISME, EA 4229, F-18022 Bourges, France

年份：2025

卷号：17

期号：18

外文期刊名：POLYMERS

收录：;EI(收录号：20254019262685);Scopus(收录号：2-s2.0-105017374265);WOS:【SCI-EXPANDED(收录号:WOS:001579876800001)】；

基金：This work was supported by Fundamental Research Funds of CAF (Grant No. CAFYBB2023QE001); the National Natural Science Foundation of China (No. 32301524) and the National Natural Science Foundation of China (No. 32271788).

语种：英文

外文关键词：veneer-based wood composites; wood scrimber; plywood; flame-retardant mechanism

摘要：Veneer-based wood composites are widely used for interior applications, yet their high flammability and smoke emission significantly limit their safe use in buildings. In this study, a multifunctional flame-retardant polyethylene adhesive film was developed via melt blending and hot pressing of a mixture of amino trimethylene phosphonic acid (ATMP), hydroxyethylidene diphosphonic acid (HDEP), melamine (MEL), and sodium alginate (SA). This film was laminated onto veneers to fabricate flame-retardant decorative plywood. Simultaneously, wood scrimber units for structural applications were prepared by impregnating wood with a flame-retardant system consisting of sodium silicate (Ss) and sodium tetraborate (St). These treated components were integrated to form a flame-retardant wood scrimber/plywood composite (AHM-S), with the wood scrimber as the core layer and the treated plywood as surface layers. Compared to the control, the AHM-S composite showed a 44.1% reduction in the second peak heat release rate (pk-HRR2), a 22.6% decrease in total heat release (THR), and a 12.7% reduction in maximum flame spread distance (MD300 degrees C). Moreover, the time to reach 275 degrees C on the unexposed side (T275 degrees C) was extended by 90.2%. These improvements are attributed to the synergistic flame-retardant effects of the surface film and impregnated core, which jointly suppress flame spread and delay thermal degradation. The composite demonstrates promising fire safety and mechanical performance for engineered wood applications.