木质纤维结构对木塑复合材料力学性能的影响  

Influence of Wood Fiber Structure on Mechanical Properties of Wood Plastic Composite

作　　者：孟洵 李利芬 余丽萍[1] 刘宝玉 曹岩[2] 徐海龙[2] MENG Xun;LI Li-fen;YU Li-ping;LIU Bao-yu;CAO Yan;XU Hai-long(Forestry College,Guizhou University,Guiyang 550025,China;Special and Key Laboratory for Development and Utilization of Guizhou Superior Bio-based Materials,Guizhou Minzu University,Guiyang 550025,China)

机构地区：[1]贵州大学林学院,贵州贵阳550025 [2]贵州民族大学贵州省优势生物质材料的开发与利用特色重点实验室,贵州贵阳550025

出　　处：《塑料科技》2022年第5期103-107,共5页Plastics Science and Technology

基　　金：国家自然科学基金项目(32060324);贵州省科技厅项目(黔科合基础[2020]1Y125,[2019]1170);贵州省林业厅项目([2018]13);贵州省教育厅自然科学研究项目(黔教合KY字[2017]003)。

摘　　要：木塑复合材料(WPC)具有优异的尺寸稳定性、耐腐性和力学性能等,应用前景广阔。木质纤维结构中表面化学极性、化学组成和纤维形态等对WPC的力学性能具有重要的影响。文章综述碱处理、接枝改性、偶联剂改性、酯化改性等化学方法,热处理、蒸汽爆破等物理方法和生物方法处理木质纤维,并分析WPC的力学性能,以期从木质纤维结构的角度探讨影响WPC力学性能的因素,为制备高性能WPC提供基础。指出未来应加强研究低能耗、易操作、高效率的木质纤维预处理方法,以降低木质纤维增强聚合物复合材料的制备成本。Wood-plastic composite(WPC) has excellent dimensional stability, corrosion resistance and mechanical properties, and has broad application prospects. The surface chemical polarity, chemical composition and fiber morphology of wood fiber structure have important effects on the mechanical properties of WPC. Chemical methods such as alkali treatment, grafting modification, coupling agent modification and esterification modification, physical methods such as heat treatment and steam explosion, and biological method are reviewed to treat wood fibers. The mechanical properties of WPC are analyzed to explore the factors affecting the mechanical properties of WPC from the perspective of wood fiber structure, and provide the basis for the preparation of high-performance WPC. It is pointed out that the research on low energy consumption, easy operation and high efficiency pretreatment methods of lignocellulose should be strengthened in the future to reduce the preparation cost of lignocellulose reinforced polymer composites.

关 键 词：木质纤维结构 木塑复合材料 界面相容性 力学性能 

分 类 号：TS653[轻工技术与工程] TB332[一般工业技术—材料科学与工程]