不同热压方法对无胶竹碎料板力学性能影响  

Effects of Different Hot-pressing Methods on the Mechanical Properties of Bamboo Binderless Particleboard

作　　者：郑霞[1] 徐剑莹[1] 

机构地区：[1]中南林业科技大学,湖南长沙410004

出　　处：《竹子研究汇刊》2011年第4期17-20,共4页Journal of Bamboo Research

基　　金：国家自然科学基金项目"农产品剩余物喷蒸热压法制造无胶人造板及其无胶胶合机理的研究";国家林业局948项目"环保型无胶刨花板制造工艺与技术引进"

摘　　要：分别采用普通热压和喷蒸热压两种热压方法制备了无胶竹碎料板,对它们的物理力学性能进行了对比研究与分析。结果表明,与普通热压法相比,喷蒸热压法制备的无胶竹碎料板的静曲强度、弹性模量与内结合强度明显提高,吸水厚度膨胀率显著减小,这可能是因为两种热压法热压过程中竹碎料发生的化学变化不同所致。Bamboo binderless particleboards were prepared by the methods of ordinary hot-pressing and steam injection hot-pressing respectively.Then,their mechanical properties were analyzed.In comparison with ordinary hot-pressing,MOR,MOE and IB of the bamboo binderless particleboard were increased significantly by steam injection hot-pressing,while TS was decreased obviously.The possible reason was that chemical changes of bamboo particles were different under different hot-pressing treatments.

关 键 词：竹材 无胶板 普通热压 喷蒸热压 力学性能 

分 类 号：TS653[轻工技术与工程]