文献类型： 外文期刊
作者： Jiang, Yan 1 ; Zhang, Mengyang 1 ; Weng, Mengling 1 ; Liu, Xiuyu 2 ; Rong, Xianjian 3 ; Huang, Qin 2 ; Chen, Guoning 3 ; Wang, Shuangfei 1 ; Wang, Lijun 1 ;
作者机构： 1.Guangxi Univ, Coll Light Ind & Food Engn, Daxue Rd 100, Nanning 530004, Peoples R China
2.Guangxi Minzu Univ, Sch Chem & Chem Engn, Daxue Rd 158, Nanning 530006, Peoples R China
3.Guangxi Bossco Environm Protect Technol Co Ltd, Nanning 530007, Peoples R China
4.Guangxi Key Lab Chem & Engn Forest Prod, Nanning 530006, Peoples R China
5.Guangxi Key Lab Clean Pulp Papermaking & Pollut C, Nanning 530004, Peoples R China
6.Guangxi Acad Agr Sci, Guangxi Key Lab Sugarcane Genet Improvement, Key Lab Sugarcane Biotechnol & Genet Improvement, Minist Agr Rural Affairs,Sugarcane Res Inst, Nanning 530007, Peoples R China
关键词： Transparent wood; Hemicellulose; Microstructural characteristics; Optical performance; Mechanical strength
期刊名称：CARBOHYDRATE POLYMERS （ 影响因子：11.2； 五年影响因子：10.2 ）
ISSN： 0144-8617
年卷期： 2022 年 296 卷
页码：
收录情况： SCI
摘要： Hemicellulose plays a vital role in nature wood matrix. Here, we first demonstrate the significance of hemicellulose for improving the microstructure and macroscopic properties of transparent wood (i.e. wood/polymer composite), an emerging structural material. A delignified basswood templet with high hemicellulose content (similar to 23 wt%) and well-preserved cellulose supramolecular structure was prepared via a peracetic acid-based process. This hemicellulose-rich delignified wood templet possesses nearly intact cell wall structure and sufficient space in the lumen and middle lamella for petroleum-based polymer space-filling. Consequently, the resultant hemicellulose-rich wood/PMMA composite exhibits high optical transmittance (similar to 85 %), medium haze (similar to 72 %), acceptable optical stability as well as excellent mechanical strength (tensile strength of 165.3 MPa and toughness of 1.65 MJ/m(3)), benefitting from the absence of microstructural defects and heterogeneity in the matrix. It is anticipated that our study would provide new insights into the fabrication of advanced transparent wood material from the point-of-view of wood chemical composition.
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