生物可降解聚酯的技术进展和应用前景

Technology Progress and Application Prospect of Biodegradable Polyesters

2019年,用于织物、包装和医疗健康领域的生物可降解聚酯达到110万t,市场需求还在高速增长。文章比较全面地综述了该产业链的主要技术,包括原料、催化剂、扩链剂、共混、共聚工业化合成聚酯、检验检测和加工应用技术。认为应根据日常消费、产业应用和高附加值的医疗、健康三大应用领域开发适应不同使用要求、低成本和降解速率可控的产品。产业链技术的重点是原料合成“绿色”化和能源成本的进一步下降;以现有工业化聚酯装置为基础,加快推进研究成果的产业化,完善“生物可降解”检验检测方法和标准、完善建立不同应用领域的产品标准;采用3D打印、超临界发泡等新加工应用技术,开拓聚酯材料的新应用市场。

In 2019,1.1 million tons of biodegradable polyesters have been used in the fields of fabrics,packaging and health care,and the market demands are still growing rapidly.In this paper,the main technologies of the industrial chain are reviewed,including raw materials,catalysts,chain extenders,blending,co-polymerization,industrial synthesis of polyesters,testing and processing technology.It is suggested that the products with low cost and controllable degradation rate should be developed according to the three major application fields of daily consumption,industrial application and high value-added medical treatment and health care.The focus of industrial chain technology is synthesis of"green"raw materials and further reduction of energy cost,accelerating the industrialization of research results based on the existing industrial polyester plant,improving the"biodegradable"test methods and standards,improving the establishment of product standards in different application fields;and adopting new processing and application technologies such as 3D printing and super-critical foaming to develop new application markets.