中文摘要：

采用不同的方法对木粉进行抽提处理，研究木粉抽提物对高密度聚乙烯（PE-HD）／木粉复合材料力学性能的影响，结果表明：木粉抽提物的移出，使木粉颗粒变得较疏松和有孔隙存在，增强了木粉在PE—HD间的分散性，从而提高复合材料的力学性能。其中热水抽提的木粉对复合材料的力学性能提高最显著。

英文摘要：

In order to investigate the effect of woodflour extractant on the mechanical properties of the composite, the woodflour was treated with different solvents, and hot water extracting woodflour, benzene-alcohol extracting oodflour and petroleum ether extracting woodflour were obtained to be used for the preparation of the composite. On the basis of the mechanical property data,the extractant was an important factor affecting the mechanical properties. The woodflour extracted by hot water was the most beneficial to enhance the mechanical properties.