【摘要】 聚乳酸(PLA)是可完全生物降解的材料,广泛应用于包装、纺织、生物医用等领域。但其具有性脆,价格较高,疏水性大等缺点,限制了应用发展。近年来对聚乳酸共混改性已成为研究热点。根据共混组分的生物降解性,聚乳酸共混体系分为完全生物降解体系和部分生物降解体系。文中综述了近年来完全生物降解聚乳酸共混体系的研究,主要阐述了PLA/淀粉、PLA/天然纤维复合材料,并简要介绍了PLA/甲壳素、PLA/蛋白等PLA/天然高分子复合材料,以及PLA/PCL、PLA/PPC、PLA/PEO等PLA/合成高分子复合材料。更多还原

【Abstract】 Polylactide(PLA) is the completely biodegradable materials,widely used in packaging,textile,biomedical fields,etc.But it has some shortcomings,such as brittleness,the higher price,hydrophobicity,development of PLA is limited.Polylactide blending modification has become a hotspot.According to the biodegradable properties of the other composition in the blends,polylactide blends are divided into two varieties of completely biodegradable blends and partially biodegradable blends.This paper described the research of completely biodegradable polylactide blend system in recent years,mainly introduced PLA/starch,PLA/natural fiber,and briefly introduced the other PLA blending composite materials with natural polymer(PLA/chitin,PLA/protein) and PLA blending composite materials with synthetic polymer(PCL,PEO,etc).更多还原