Selecting the Technology of Sodium Silicate Modified Poplar with the Highest Performance by Fuzzy Orthogonal Method

作     者：Xiaoqian Bi Pengfei Guan Ping Li Yuan Zhang Xingong Li Yingfeng Zuo 

作者机构：College of Materials Science and EngineeringCentral South University of Forestry and TechnologyChangsha410004China College of Furniture and Art DesignCentral South University of Forestry and TechnologyChangsha410004China 

出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)

年 卷 期：2023年第11卷第5期

页      面：2399-2415页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：This work was financially supported by National Natural Science Foundation of China(32201485) Natural Science Foundation of Hunan Province,China(2022JJ40863) Scientific Research Project of Hunan Provincial Education Department,China(21B0238) The Science and Technology Innovation Program of Hunan Province(2021RC4062) 

主　　题：Poplar wood sodium silicate impregnation modification fuzzy orthogonal method process optimization flame retardant 

摘      要：Sodium silicate modification can improve the overall performance of *** modification process has a great influence on the properties of modified *** this study,a new method was introduced to analyze the wood modification process,and the properties of modified wood were *** wood was modified with sodium silicate by vacuum-pressure *** screening using single-factor experiments,an orthogonal experiment was carried out with solution concentration,impregnation time,impregnation pressure,and the cycle times as experimental *** modified poplar with the best properties was selected by fuzzy mathematics and characterized by SEM,FT-IR,XRD and *** results showed that some lignin and hemicellulose were removed from the wood due to the alkaline action of sodium silicate,and the orderly crystal area of poplar became disorderly,resulting in the reduction of crystallinity of the modified poplar ***-IR analysis showed that sodium silicate was hydrolyzed to form polysilicic acid in wood,and structural analysis revealed the formation of Si-O-Si and Si-O-C,indicating that sodium silicate reacted with fibers on the wood cell ***-DTG curves showed that the final residual mass of modified poplar wood increased from 25%to 67%,and the temperature of the maximum loss rate decreased from 343℃ to 276℃.The heat release and smoke release of modified poplar wood decreased *** kind of material with high strength and fire resistance can be used in the outdoor building and indoor furniture.