聚乙醇酸材料的加工改性及其水下降解特性的研究进展

A review of modification processing and water-soluble degradation ability of polyglycolic acid material

从具有广阔应用前景的聚乙醇酸(PGA)材料的物性、加工改性及应用等方面概括了PGA的基本改性原理、改性方法以及加工过程中需要注意的问题;从增韧、增强、增塑、增容等角度,阐述了不同助剂,如增容剂、扩链剂及增塑剂等对PGA材料的改性机理,比较了不同增韧材料与PGA材料相容性及界面互溶增强技术;最终总结了PGA加工性能及使用性能的调控规律。

This paper introduced the basic principles of modification methods and principles for the processing process of poly(glycolic acid)(PGA)from the aspects of its physical properties,processing techniques,and practical applications.The paper mainly reviewed the current research progress in modification methodologies through plasticization,toughening,and copolymerization,including the usage of different additives such as compatibilizer EMA-GMA,chain extender ADR and plasticizer.The effects of these additives were concluded and compared.The compatibility of varied toughening agents with PGA material and the strengthening technology of interface mutual diffusion were discussed.Finally,the modification rules for PGA processing as well as its application performance were summarized.