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以木粉为填充材料,以PE(聚乙烯)、PP(聚丙烯)为塑料基体,分别采用混炼-模压工艺和挤出-注塑工艺制备木塑复合材料,对比研究不同复合材料的力学性能、热性能以及流变性。结果表明,混炼-模压工艺制备的PE基复合材料综合性能较优,而挤出-注塑工艺制备的PP基复合材料综合性能较优,且在PE塑料系列中,HDPE(高密度聚乙烯)基复合材料综合力学性能最好,LLDPE(线性低密度聚乙烯)基复合材料的冲击韧性最好,但其综合力学性能较差。
Using wood flour as filler, PE (polyethylene) and PP (polypropylene) as plastic matrix, the wood-plastic composites were prepared by mixing-molding process and extrusion-injection molding process respectively, and the mechanical properties of different composites , Thermal properties and rheology. The results showed that the properties of PE-based composites prepared by the process of mixing-molding are better, while the properties of PP-based composites prepared by extrusion-injection molding are better. In PE series, HDPE (High Density Polyethylene) The composites have the best comprehensive mechanical properties, the best impact toughness of LLDPE (LDPE) matrix composites, but the poor mechanical properties.