竹木复合层合板老化性能试验  

Aging property of bamboo/wood composite laminate

作　　者：张晓冬[1] 程秀才 班磊[1] 

机构地区：[1]南京林业大学竹材研究中心,南京210037 [2]国家建材产品质量监督检验中心(南京)

出　　处：《林业科技开发》2010年第3期18-21,共4页China Forestry Science and Technology

基　　金："十五"国家高技术研究发展计划(863)"木材/竹材复合材料制造技术"项目(编号:2002AA245171)

摘　　要：运用ASTM D1037人工加速老化试验方法对一种公交车底板上的竹木复合材料新产品进行6个周期循环老化研究。分析了板材的耐水性、尺寸稳定性、各项力学性能值在加速老化过程中的变化情况,并对老化后该种竹木复合材料的抗弯强度和弹性模量进行回归分析,拟合出一般的力学性能和老化周期的函数方程。研究表明:老化过程中板材的抗弯强度和弹性模量的都呈现下降趋势,但老化过程对纵向抗弯强度的影响程度要小于对纵向弹性模量的影响。In this paper, the six-cycle artificial accelarated-aging test with ASTM D1037 was conducted to study the bamboo/wood composite laminate aging property. The resistance of water, dimensions stability and mechanical properties under the aging process were studied. After that, a regression model was established among the bending strength, Young＇ s modulus and aging periods. The results showed that both the bending strength and Young＇ s modulus decreased after the aging process. However, the effect of the aging process on the longitudinal Young＇ s modulus was larger than that of longitudinal bending strength.

关 键 词：竹木复合材料 加速老化实验 抗弯强度 弹性模量 

分 类 号：TS653.92[轻工技术与工程]