埃洛石纳米管对聚乳酸基材料的改性研究进展

埃洛石纳米管（HNTs）是一种天然的无机纳米管状材料,具有与高岭土相似的化学组成以及与碳纳米管类似的一维结构,因其来源广泛、价格低廉,并且具有较大的长径比、较大的比表面积以及高模量等特点,近年来受到广泛关注并被应用于高分子材料的改性之中。本文在HNTs的结构特点和现有的表面改性方法的基础上,梳理了近年来HNTs用于聚乳酸（PLA）基聚合物复合材料改性的相关研究工作,重点关注了HNTs对材料的热稳定性、相结构、结晶性能、降解性能、机械性能以及生物医学性能方面的影响,展望了HNTs改性PLA复合材料的研究和应用前景。

Progress in the modification of poly(lactic acid)-based materials by halloysite nanotubes

Halloysite nanotubes (HNTs) are naturally occurring inorganic nanotubes, which have a similar chemical composition to kaolinite and a similar structure to carbon nanotubes. Due to their high abundance, low price, high aspect ratio, large specific surface area and high modulus, HNTs have attracted considerable attention in recent years and have been employed in the modification of polymer materials. Focusing on the structural characteristics and surface modification of HNTs, this paper reviews applications of HNTs in the modification of poly(lactic acid) (PLA)-based polymer composites, highlighting the effects of HNTs on the thermal stability, phase structure, crystallization, degradation, mechanical properties and biomedical performance of the modified materials. Future application prospects of HNTs-modified PLA composites are also discussed.