摘要
为高效利用木材资源,实现对压缩杨木压缩层的位置和厚度的有效控制,进行了先水热预处理,再压缩的研究,分析水热预处理时间对预处理材水分分布、压缩材的压缩层形成及性能的影响。结果表明,随着预热时间的增加,水分向预处理材芯层移动,压缩层的位置亦向芯层移动、压缩层厚度增加;与未处理素材相比,压缩材的抗弯性能明显增强。
Hydro-thermal pretreatment was used to control the thickness and location of the compression layer of Chinese white poplar samples when they were hot-compressed.The results showed that with increasing pretreatment time,the depth and thickness of the compression layer were increased.Therefore,the modulus of rupture（MOR）and modulus of elasticity（MOE） of the samples were increased.
出处
《木材工业》
北大核心
2013年第4期42-45,共4页
China Wood Industry
基金
国家林业局引进国际先进林业科学技术计划(948项目)“压缩预处理关键技术引进”(2011-4-19)
关键词
毛白杨
水热预处理
压缩处理
压缩层
密实化
Chinese white poplar
hydro-thermal pretreatment
compressing
compression layer
densification
