PLA/PBAT可降解地膜的制备技术和研究应用进展  

Preparation Techniques and Research Applications of PLA/PBAT Biodegradable Films

作　　者：陈晨 汪洋[1] 汪香君 熊露璐 李军[1] CHEN Chen;WANG Yang;WANG Xiang-jun;XIONG Lu-lu;LI Jun(Shanghai University of Engineering Science,Shanghai 201620,China;Shanghai Dajue Packaging Products Co.,Ltd.,Shanghai 201700,China)

机构地区：[1]上海工程技术大学,上海201620 [2]上海大觉包装制品有限公司,上海201700

出　　处：《塑料科技》2024年第4期137-142,共6页Plastics Science and Technology

基　　金：上海市青浦区科委-科研专项(2022-17)。

摘　　要：传统聚乙烯(PE)农用地膜因难以降解,对环境造成的危害不可逆。将聚乳酸(PLA)和聚己二酸-对苯二甲酸丁二酯(PBAT)共混,可制备出高强度、高柔韧性的可降解复合材料,用作农用地膜能够有效改善环境污染问题。文章综述了PLA/PBAT地膜的制备工艺,总结了无机填料和有机填料对材料的改性研究,最后介绍了PLA/PBAT地膜在当前农业生产中的应用及发展前景。研究表明:PLA/PBAT地膜的制备工艺已从有到优进入新的发展阶段,有机填料或无机填料的加入可降低PLA/PBAT地膜的成本,改善材料相容性,提升力学性能、结晶性能和阻隔性能等多项关键指标。在现实应用中,PLA/PBAT地膜可以促进作物生长,提高作物产量,但其降解周期不可控制约了其发展。未来,可根据不同作物的生长因素研发降解周期可调控的PLA/PBAT可降解地膜。Traditional polyethylene(PE)agricultural mulching film is difficult to degrade,which is harmful to the environment and irreversible.Poly(lactic acid)(PLA)and poly(adipic acid-butylene terephthalate)(PBAT)can be blended to prepare high strength and high flexibility degradable composites,which can effectively improve environmental pollution when used as agricultural mulching film.In this paper,the preparation technology of PLA/PBAT mulching film was summarized,and the modification of materials by inorganic fillers and organic fillers was summarized.Finally,the application and development prospect of PLA/PBAT mulching film in current agricultural production were introduced.The research shows that the preparation technology of PLA/PBAT mulching film has entered a new development stage from excellent to excellent.The addition of organic fillers or inorganic fillers can reduce the cost of PLA/PBAT mulching film,improve the compatibility of materials,and enhance many key indexes such as mechanical properties,crystallization properties and barrier properties.In practical application,PLA/PBAT plastic film can promote crop growth and increase crop yield,but its uncontrollable degradation cycle affects its development.In the future,PLA/PBAT degradable plastic film with adjustable degradation cycle can be developed according to different crop growth factors.

关 键 词：聚己二酸对苯二甲酸丁二酯 聚乳酸 生物可降解地膜 

分 类 号：TQ320.73[化学工程—合成树脂塑料工业]