摘要
以广东省产地麻竹(Dendrocalamus latiflorus)和粉单竹(Bambusa chungii)为原料制备竹重组材,研究去青去黄、直接碾压两种单元材料疏解方式,和浅碳处理工艺对板材物理力学性能影响。研究结果表明,麻竹和粉单竹采用直接碾压疏解方式制备的竹束吸水率均高于去青去黄疏解方式制备的竹束;采用直接碾压疏解方式制备的重组材各项性能均优于去青去黄疏解方式制备的重组材。浅碳处理工艺对麻竹重组材和粉单竹重组材吸水稳定性无明显影响,对麻竹重组材静曲强度、弹性模量和水平剪切强度有降低作用。竹种不同,板材性能变化有明显差异,麻竹制备的重组材各项性能受疏解方式和浅碳处理工艺影响更大。
Effects of bamboo bundle crushing method and low-temperature heat treatment on physicalmechanical properties of bamboo scrimber made by D.latiflorus and B.chungii were explored.Results showed that bamboo bundles made by direct crushing method had better water absorption rate than that of removebamboo skin crushing method,and the physical-mechanical properties of bamboo scrimber made by former bamboo bundle were also better than that of the later one.Low-temperature heat treatment had no significant effect on dimentional stability of bamboo scrimbers made of D.latiflorus and B.chungii,but had significant effect on modulus of rupture,modulus of elasticity and horizontal shear strength of bamboo scrimber made by D.latifl orus.Bundle crushing method and heat treatment had greater influence on the physical-mechanical properties of bamboo scrimber made of D.latiflorus than that of bamboo scrimber made of B.chungii.
作者
马红霞
李兴伟
何雪香
陈利芳
王剑菁
MA Hongxia;LI Xingwei;HE Xuexiang;CHEN Lifang;WANG Jianjing(Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization/Guangdong Academy of Forestry, Guangzhou,Guangdong 510520,China)
出处
《林业与环境科学》
2018年第6期61-65,共5页
Forestry and Environmental Science
基金
广东省林业科技创新项目(2015KJCX009
2015KJCX031)
广东省省级科技计划项目(2016B020203002)
广州市科技计划项目(201607010324)
关键词
麻竹
粉单竹
竹重组材
疏解方式
浅碳处理
Dendrocalamus latiflorus
Bambusa chungii
bamboo scrimber
crushing method
lowtemperature heat treatment
