热塑性淀粉/高密度聚乙烯复合材料的制备及性能研究

目的 总结近年来有关植物纤维增强聚乳酸发泡材料研究的相关文献，为聚乳酸发泡材料的制备及性能研究提供参考。方法 按照发泡方法进行分类，介绍采用不同发泡方法制备植物纤维/聚乳酸复合发泡材料的性能，重点综述采用超临界CO2发泡法时，添加植物纤维对发泡材料性能的影响。 结果 植物纤维增强聚乳酸发泡材料的研究处于实验室研究阶段;添加植物纤维的聚乳酸发泡材料的泡孔尺寸更均匀、更小，泡孔密度增大，力学性能也有所提高。结论 添加植物纤维可以增强聚乳酸发泡材料的力学等性能;植物纤维和聚乳酸复合发泡材料的相关研究对聚乳酸发泡材料的大规模生产具有重要指导意义。

Preparation and Properties of Thermoplastic Starch/High Density Polyethylene Composite Materials

The work aims to summarize the recent progresses on plant fiber reinforced polylactic acid foaming materials so as to provide a reference for the preparation and performance research of polylactic acid foaming materials. The classification was carried out according to the foaming method and the properties of plant fiber/PLA composite foam materials prepared by different foaming methods were introduced. The effects of plant fiber added to supercritical CO2 foaming method on the properties of foaming materials were mainly reviewed. The research of PLA foaming material reinforced by plant fiber was in the stage of laboratory research. The cell size of PLA foaming material added with plant fiber was more uniform and smaller, and the density increased. The mechanical properties were also improved. The mechanical and other properties of PLA foaming materials can be enhanced by adding plant fiber. The research on plant fiber and PLA composite foaming materials is of great significance for large-scale production of PLA foaming materials.