文献类型：期刊文献

中文题名：铜唑防腐剂对杨木重组木防腐性能及物理力学性能的影响

英文题名：Effects of CuAz preservative on the antiseptic performance and physical and mechanical properties of poplar scrimber

作者：鲍敏振[1,2] 于文吉[3] 陈玉和[1,2] 余养伦[3] 吴再兴[1,2] 何盛[1,2] 李能[1,2]

第一作者：鲍敏振

机构：[1]国家林业和草原局竹子研究开发中心,浙江杭州310012;[2]浙江省竹子高效加工重点实验室,浙江杭州310012;[3]中国林业科学研究院木材工业研究所,北京100091

年份：2020

卷号：37

期号：1

起止页码：165-170

中文期刊名：浙江农林大学学报

外文期刊名：Journal of Zhejiang A & F University

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：“十三五”国家重点研发计划项目(2016YFD0600904);浙江省属公益类科研院所基本科研业务费专项(2019);青山湖科技城创新载体建设项目(2017E8002)

语种：中文

中文关键词：木材科学与技术;重组木;铜唑防腐剂;防腐性能;耐水性能;力学性能

外文关键词：wood science and technology;scrimber;CuAz preservative;antiseptic performance;water resistance;mechanical property

分类号：S782.33

摘要：[目的] 探讨铜唑(CuAz)防腐剂对重组木化学组分、防腐性能和物理力学性能的影响,以提高重组木的户外耐久性。 [方法] 采用水溶性CuAz防腐剂对杨木纤维化单板进行常压和真空浸渍处理,以酚醛胶为胶黏剂压制防腐重组木。 [结果] CuAz防腐剂能进入导管、木射线和纤维等细胞的细胞腔和细胞壁中,并与细胞壁的半纤维素和木质素发生络合反应。经过白腐采绒革盖菌Coriolus versicolor和褐腐密黏褶菌Gloeophyllum trabeum 12周侵蚀,防腐重组木的质量损失率均小于10%,达到强耐腐等级。防腐重组木的吸水率、吸水厚度膨胀率和吸水宽度膨胀率均低于未经防腐处理的重组木。同时,防腐重组木的弹性模量和水平剪切强度优于未经防腐处理的重组木,但静曲强度相比对照组有所降低。 [结论] CuAz防腐剂处理重组木,可提高重组木耐腐性能,改善其物理力学性能。
Objective The research aim is to improve the outdoor durability of scrimber. Method Water-soluble CuAz preservative was used to impregnate poplar fibrous veneer by means of atmospheric pressure and vacuum-pressure, respectively. The effects of CuAz preservative on chemical composition, antiseptic performance and physical and mechanical properties of scrimber were investigated. Result CuAz preservative could enter the cell lumen and cell wall of vessel, wood ray and fiber, and complexed with hemicellulose and lignin of cell wall. After 12 weeks of decay test by Coriolus versicolor and Gloeophyllum trabeum, the mass loss rate of the antiseptic scrimber was less than 10%, reaching the grade of strong decay resistance. The water absorption rate, thickness swelling rate and width swelling rate of antiseptic scrimber were lower than those of untreated scrimber. The modulus of elasticity and horizontal shear strength of anticorrosive scrimber were higher than those of untreated scrimber, while the static bending strength of antiseptic scrimber was lower than that of control scrimber. Conclusion Water-soluble CuAz preservative can improve the scrimber's antiseptic performance and physical and mechanical properties.