聚乳酸材料增韧改性的研究进展  

Research Progress in Toughening Modification of Polylactic Acid Materials

作　　者：明璐 赵武学 康凯尔 韩利锋 MING Lu;ZHAO Wu-xue;KANG Kai-er;HAN Li-feng(Shaanxi Coal Chemical Industry Technology Research Institute Co.,Ltd.,Xian 710100,China)

机构地区：[1]陕西煤业化工技术研究院有限责任公司,陕西西安710100

出　　处：《塑料科技》2023年第7期116-120,共5页Plastics Science and Technology

摘　　要：聚乳酸(PLA)在一定条件下可完全降解为二氧化碳和水,不会对环境造成破坏,被广泛认为可以取代传统石油基材料。但是PLA存在脆性大、柔韧性低等缺点,限制其在高韧性领域中的应用。文章主要从弹性体、柔性高分子、无机材料和增塑剂等方面探讨PLA的增韧改性,综述了近年来国内外PLA共混增韧的研究进展。指出未来研究的重点方向是开发综合性能优异、绿色环保的低成本增韧改性剂,使PLA能够满足更多应用领域。Polylactic acid(PLA) can be completely degraded into carbon dioxide and water under certain conditions without causing damage to the environment.It is widely considered to replace traditional petroleum-based materials.However,PLA has the disadvantages of high brittleness and low flexibility,which limits its application in the field of high toughness.The toughening modification of PLA was mainly discussed from the aspects of elastomers,flexible polymers,inorganic materials and plasticizers.The research progress of PLA blending toughening at home and abroad in recent years was reviewed.It is pointed out that the focus of future research is to develop low-cost toughening modifiers with excellent comprehensive performance and environmental protection,so that PLA can meet more application fields.

关 键 词：聚乳酸 弹性体 柔性高分子 增塑剂 增韧改性 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]