原位聚合反应及其在木材化学改性中的应用  

In-situ polymerization and application in wood chemical modification

作　　者：武国峰[1] 陈鹤予[1] 佘颖[1] 蒲俊文[1] 

机构地区：[1]北京林业大学材料科学与技术学院,北京100083

出　　处：《化工新型材料》2012年第8期144-147,共4页New Chemical Materials

基　　金：北京林业大学研究生科技创新项目(BLYJ201106);北京市自然科学基金(2112032)

摘　　要：木材化学改性是利用化学方法对木材进行处理,克服天然木材尤其是速生材的原有缺陷,提高木材的物理力学性能、防腐性、抗老化性、阻燃性及尺寸稳定性,改善木材的颜色纹理,提高木材的使用档次和商业价值。利用木材多孔性的特性,将木材改性剂浸渍到木材内部,并在热、辐射或催化剂的作用下,改性剂在木材内部发生原位聚合反应,从而得到性能提高的改性木。简要介绍了木材的多孔状微观结构,从原位聚合反应发生的在木材化学改性中的应用,重点介绍了常用的木材化学改性剂及其在木材改性过程中发生的原位聚合反应机理。最后分析了目前木材化学改性的研究现状、存在的问题以及未来的发展趋势。After the implementation of natural forest protection project, developing plantation has become the main method to solve the contradiction between timber supply and demand. Wood treated with chemical agents in order to improve natural wood deficiencies, which can enhance the physical and mechanical performance, decay resistance, ageing resistance, fire resistance, and dimensional stability. It can also improve wood＇s color, texture, and increaseing value-added. Wood can be impregnated because of the hole shape structure of timbers. The in-situ polymerization between wood structure and chemical occurred at the heat treatment, radiation, or catalyzer. The in-situ polymerization, application of composites and hole shape structure of timbers were briefly introduced. Oversea and domestic researchers as well as the author＇s experiments, the common chemical modification agent and wood modification occurred in the process of in-situ polymerization and reaction mechanism were also introduced. In the final, the current research status of chemical modification of lumber, existing problems and future development trend were discussed. It will provide a new way for the high value-added utilization of plantation timber. It is also significant for expanding the plantation timber utilization fields.

关 键 词：原位聚合反应 木材 化学改性 改性机理 

分 类 号：TS612[轻工技术与工程]