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
陈晨 1汪洋 1汪香君 1熊露璐 2李军1
作者信息
- 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
- 折叠
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.
Abstract
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Key words
Poly(adipic acid-butylene terephthalate)/Poly(lactic acid)/Biodegradable films引用本文复制引用
基金项目
上海市青浦区科委-科研专项(2022-17)
出版年
2024
国家科技期刊平台
NSTL
万方数据