聚乳酸作为一种绿色生物基材料,具有可再生性和生物可降解性。利用熔喷技术制备的聚乳酸非织造材料可将聚乳酸自身性能优势与非织造材料纤维超细、比表面积大、孔隙率高等结构特点结合,在空气过滤领域具有广阔的应用前景。阐述了聚乳酸熔喷非织造材料的制备工艺、性能特点以及在空气过滤领域的研究进展,并对增韧/增强改性、驻极体改性以及功能改性聚乳酸非织造材料的国内外研究情况进行总结。
As a type of green bio-based material,polylactic acid (PLA) is renewable and biodegradable.The efficient and convenient preparation of PLA nonwoven material using melt-blown technology can combine the performance advantages of PLA with the structural characteristics of nonwoven materials such as ultrafine fiber diameter,large specific surface area and high porosity,and has broad application prospects in the field of air filtration.The preparation technology,properties and research progress of PLA melt-blown nonwovens in the field of air filtration were described,and summarized the research situation of toughening/strengthening modification,electret modification and functional modification of PLA nonwovens at home and abroad in recent years.
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