毛竹重组材与天然毛竹的结构比较  

Comparative analysis between MOSO bamboo scrimber and natural bamboo base on structure

作　　者：任湘 孙涛 杨峰 宋莎莎 王雪花 费本华 

机构地区：[1]广东省佛山市质量监督检测中心,佛山528000 [2]国际竹藤中心,北京100102

出　　处：《木材加工机械》2015年第1期40-42,48,共4页Wood Processing Machinery

基　　金：十二五国家科技支撑计划"竹木结构示范房屋设计;建造与评价(2012BAD23B0105)"

摘　　要：为了探究重组过程对天然毛竹结构的影响,采用显微镜观测、纤维体积分数计算方法,对重组材的结构特征进行了研究。探讨了含水率、压力对竹重组材压缩率的影响,并与天然竹材进行了对比。结果表明:与天然竹材相比,重组后竹材的结构变化,主要源于维管束本身以及维管束分布的改变;重组过程中,过高或者过低的含水率都会降低竹重组材的力学性能;竹材重组后,大部分区域的纤维体积分数Vy值在50%上下,但是临近髓环的纤维占比并没有实质性的改变。In order to discover the effect of reformed process on natural bamboo structure, the microscope observation, and fiber volume IYaction calculation method were used, and the effect of moisture content and pressure on bamboo compression ratio was also studied. The results showed that the change mainly from the vascular bundle and the change of the distribution of vascular bundles; The moisture content of higher and lower will reduce the properties; Most area of the fiber volume fraction value is around 50%, but the pith ring fiber proportion is constant.

关 键 词：毛竹 竹重组材 结构 

分 类 号：TS653[轻工技术与工程] S781.9[农业科学—木材科学与技术]