摘要
以梁山慈竹为研究对象,对含水率不同的板坯,采用一段式"热上-冷下"和梯度降压式"热上-热下"两种热压工艺制备竹帘胶合板,分析板坯含水率和热压工艺对板材性能的影响。结果表明:热压工艺对板面平整度有显著影响,"热上-冷下"工艺条件下板面的平整度较优;板坯含水率在10%～20%范围,对板材的吸水厚度膨胀率、弹性模量、水煮内结合强度和板面平整度有显著影响,含水率15%时板材的各项性能较佳。
Bamboo plywood was produced under different hot pressing parameters and mat moisture contents, and their properties were evaluated. The results showed that the hot pressing process, with cooling at the end of the pressing cycle, had significant influence on board surface flatness. Mat moisture content also had great effect on board thickness swelling, bending stiffness, boiled internal bonding strength, and panel flatness. The results showed that the optimal mat moisture content was around 15%.
出处
《木材工业》
北大核心
2012年第6期9-12,共4页
China Wood Industry
基金
中央级公益性科研院所基本科研业务费专项资金(CAFINT2010C02)
关键词
梁山慈竹
竹帘胶合板
热压工艺
板坯含水率
Dendrocalamus farinosus
bamboo plywood
hot pressing
mat moisture content
