摘要
对放置在室温、阳光、户外自然和土壤环境中的高密度聚乙烯(HDPE)/稻壳复合地板的颜色、抗弯性能和弯曲蠕变性能进行了研究。结果表明,环境因子对复合地板的颜色、抗弯性能和弯曲蠕变性能有一定影响,其中阳光环境对颜色影响最大,户外自然环境对抗弯性能影响最大,土壤环境对弯曲蠕变性能影响最大。六元件模型比四元件模型更好地拟合HDPE/稻壳复合地板的弯曲蠕变曲线。瞬时弹性变形与应力水平无明显关系;粘弹性变形、粘性变形和蠕变速率均随应力的增加而增大;该结论与滞后时间的分析一致。
The color and bending performance and flexural creep behavior of high density polyethyelene （HDPE）/rice husk composite flooring were studied under four different conditions： room temperature, sunshine, outdoor natural （dry and wet） and soil isolated from oxygen. The results showed that environments had an impact on the color and flexural performance and creep behavior; of which the sunshine environment had the greatest impact on color; outdoor natural environment had the greatest effect on bending performance and the soil environment had the greatest influence on the creep behavior. Six-element model could be better used to simulate the flexural creep behavior of HDPE/rice husk composite flooring than four-element model. Instantaneous elastic deformation had no significant relationship with stress; but viscous-elastic deformation and viscous deformation and the creep rate increased when the stress lever rose; which conclusion was the same as the analysis of the lag time.
出处
《福建林学院学报》
CSCD
北大核心
2010年第3期221-225,共5页
Journal of Fujian College of Forestry
基金
国家自然科学基金资助项目(30871968
30771683)
关键词
高密度聚乙烯/稻壳复合地板
弯曲蠕变性能
环境
六元件模型
high density polyethyelene （HDPE）/rice husk composite flooring
flexural creep behavior
environment
six-element model
