竹束形状对重组竹吸水性能的影响  

Effect of Bundle Diameter on Water Absorption Properties of Bamboo Scrimber

作　　者：李景鹏[1,2] 吴再兴[1,2] 何盛[1,2] 黄成建[1,2] 陈玉和[1,2] LI Jing-peng;WU Zai-xing;HE Sheng;HUANG Cheng-jian;CHEN Yu-he(China National Bamboo Research Center, Hangzhou 310012, China;Key Laboratory for High Efficient Processing of Bamboo of Zhejiang Province, Hangzhou 310012, China)

机构地区：[1]国家林业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

出　　处：《浙江林业科技》2016年第6期67-70,共4页Journal of Zhejiang Forestry Science and Technology

基　　金：浙江省省院合作林业科技项目(2013SY06);浙江省竹子高效加工重点实验室项目(2014F10047)

摘　　要：用粗、细2种竹束分别制备重组竹,测试不同竹束形状对重组竹吸水率、吸水厚度膨胀率、吸水宽度膨胀率以及重组竹水平剪切强度的影响。实验结果表明,在10 min浸胶时间下,细竹束的上胶量约为粗竹束上胶量的142.3%;在相同的时间下,粗竹束重组竹的吸水率、吸水厚度膨胀率以及吸水宽度膨胀率为细竹束重组竹的114.0%,131.1%和115.0%;粗竹束制备的重组竹的水平剪切强度小于细竹束重组竹。试验显示,竹束细化后,浸胶更加均匀,越容易压密实,改善了重组竹的胶合性能。Bamboo scrimbers were prepared with thick and thin bamboo bundles as raw materials.Determinations were conducted on waterabsorption,thickness swelling rate,width swelling rate and horizontal shearing strength of scrimbers.The results showed that glue loading of thinbamboo bundles was142.3%of thick ones10minutes after dipping glue.Water absorption,thickness swelling rate,and width swelling rate ofbamboo scrimber made by thin bundles was114.0%,131.1%and115.0%of that by thick ones.The horizontal shear strength of the scrimber made bythick bamboo bundles was less than that by thin ones.The experiment resulted that thinner bundles had even gluing,denser pressed and betterproperties of scrimber.

关 键 词：重组竹 竹束 上胶量 水平剪切强度 吸水性能 

分 类 号：S782.33[农业科学—木材科学与技术]