亚麻屑／高密度聚乙烯复合材料的制备与老化性能  

Preparation and Aging Properties of Flax Combings/HDPE Wood Plastic Composite

作　　者：衣明[1] 李春波 杨兆哲[1] 石祎[1] 许民[1] 

机构地区：[1]东北林业大学,哈尔滨150040 [2]哈尔滨木器制造厂

出　　处：《东北林业大学学报》2013年第6期93-96,103,共5页Journal of Northeast Forestry University

基　　金：国家自然科学基金(30972300)

摘　　要：利用亚麻屑和高密度聚乙烯(HDPE)挤出成型,采用单因素实验确定最佳工艺和最优配方;通过测试老化前后弯曲强度、冲击强度和表面颜色的改变,结合扫描电镜分析复合材料的老化对力学性能和表面性能的影响。结果表明:亚麻屑质量分数为60%的复合材料综合性能最好,随着老化时间的增加,复合材料的颜色变白,力学和抗老化性能明显下降。UV531对材料的冲击强度增强效果较理想,铁红对材料的弯曲强度增强效果较理想,无添加剂的变白程度较深,UV531的变白程度较低,铁红的红色变浅,UV531和铁红对木塑复合材料有抗老化和固色作用。An experiment was conducted to manufacture wood plastic composite （WPC） from the flax combings and HDPE （High-density polyethylene）. The best craft and optimal formula were determined by the single factor experiment. The bending strength, impacting strength and the change of surface color were tested before and after aging. The influence of composite material aging on mechanical and surface properties was investigated by the scanning electron microscope technology （SEM）. The composite material is the best with 60% of flax combings in mass. The surface color of WPC turns whiter and the mechanical and anti-aging properties decline obviously with the increasing of the aging time. UV531 has the best effect of impacting on the material strength, and the iron oxide red has the ideal effect on bending strength. The whitening degree of WPC without additive is deeper, and that under UV531 is lower. The red of WPC with iron oxide red becomes shallow. UV531 and the iron oxide red have the effects of anti-aging and fixation on wood plastic composite.

关 键 词：亚麻屑 高密度聚乙烯 复合材料 老化性能 力学性能 

分 类 号：TS61[轻工技术与工程]