文献类型：期刊文献

英文题名：Enhancing flame retardancy and antibacterial properties of wood veneer by promoting crosslinking in metal-organic framework structures

作者：Jia, Hongyu[1] Chen, Zhilin[1] Jiang, Peng[1] Pan, Fangya[1] Li, Luming[2]

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]Zhejiang A&F Univ, Coll Chem & Mat Engn, Hangzhou 311300, Peoples R China

年份：2024

卷号：427

外文期刊名：CONSTRUCTION AND BUILDING MATERIALS

收录：;EI(收录号：20241816015225);Scopus(收录号：2-s2.0-85191652378);WOS:【SCI-EXPANDED(收录号:WOS:001229760000001)】；

基金：This work was supported by National Key Research and Develop- ment Program of China (Grant No. 2022YFD2200702) .

语种：英文

外文关键词：Decorative wood veneer; Metal -organic frameworks; Environmentally friendly; Flame retardant; Antibacterial

摘要：Decorative veneer, rotary cut from wood, serving as the outermost layer of decorative plates and is exposed to potential risks of fire hazards and bacterial growth. In this study, following the principle of eco-friendly and costeffective, the polyamino polyether methylene phosphonate (PAPEMP) and magnesium chloride (MgCl 2 ) were sequentially impregnated into the veneer, and then the alkaline environment was employed to facilitate the complexation, leading to the formation of cross -linked chains within the porous wood structure. Consequently, the modified wood veneer, endowed with exceptional flame retardancy, smoke suppression, antibacterial properties, and good wettability was successfully achieved. Through optimization in an alkaline environment, the modified decorative veneer exhibits a remarkable increase in limiting oxygen index from 19.7% in the pure veneer to 36.9%, coupled with a significant reduction of 19.38% in total heat release and 65.22% in total smoke release compared to the pure veneer. Additionally, the peak mass loss rate (PLMR) of the modified veneer was 66.41% lower than that of the pure veneer, and the char residue increased to 46.1%, representing a 149.19% improvement over the pure veneer. Compared with pure veneer, the wettability of modified veneer increased by 37.93%. Additionally, the tensile strength parallel to the grain of the modified veneer was enhanced by 22.09% compared to the veneer without NaOH solution treatment, and exhibits strong inhibitory effects on colony reproduction. The developed flame-retardant and antibacterial treatment processes for decorative veneers offer a novel and environmentally friendly method for utilizing precious tree veneers, suitable for a variety of precious woods, and successfully applied to decorative wooden doors and wooden fire-resistant doors.