摘要
对树龄60 a左右的刨花楠Machilus pauhoi木材在气干和水存保存状态下木材物理力学性能和表面视觉物理量进行测试,对比水存处理对刨花楠木材性能的影响。结果表明,刨花楠木材经水存处理后密度和硬度明显增大,木材结构更致密;水存处理对刨花楠木材的干缩性影响不大,而弦向和体积湿胀率明显下降,径向和弦向的湿胀率相近,木材的尺寸稳定性明显提升;经水存处理后的刨花楠木材,在XYZ色度空间内色调、明度和色饱和度都有所降低,在L*a*b*色度空间内L*值和a*值略有减小,且a*值范围变小,b*值增大,材色由浅变深,并向偏黄方向变化。以上研究结果为刨花楠木材加工利用、木材抽提物的提取应用提供理论参考。
Wood samples were collected from one dead tree of 60-year Machilus pauhoi caused by heavy snow in 2008 in Jiande,Zhejiang province.They were treated by air dry and water immersion.Determinations were conducted on physio-mechanical properties and wood color.The results showed that the density and hardness of M.pauhoi wood treated by water immersion increased significantly,and the wood structure was more compact.The water immersion had little effect on shrinkage,but tangential and volume swelling significantly decreased,the radial and tangential swelling was similar,and the dimensional stability of wood was significantly improved.The hue,lightness and color saturation of water immersed wood decreased by chromaticity space,and the L*and a*in L*a*b*chromaticity space decreased slightly,and the range of a*decreased,and b*increased,the wood color of water immersed samples changed from light to dark,and changed to yellow.
作者
徐永宏
范建忠
余裕龙
陈志清
叶俊成
严辉霞
陈济远
李文珠
XU Yonghong;FAN Jianzhong;YU Yulong;CHEN Zhiqing;YE Juncheng;YAN Huixia;CHEN Jiyuan;LI Wenzhu(Jiande Shouchang Forest Farm of Zhejiang,Jiande 311600,China;School of Chemistry and Materials Engineering,Zhejiang A&F University,Hangzhou 311300,China)
出处
《浙江林业科技》
2023年第6期66-71,共6页
Journal of Zhejiang Forestry Science and Technology
基金
浙江省基础公益研究项目(LGC20C160001)。
关键词
刨花楠
水存处理
物理力学性能
表面视觉物理量
Machilus pauhio
water immersion treatment
physical and mechanical property
surface visual and physical quantity
