摘要
聚乳酸(PLA)作为可再生可降解的环境友好型新材料,具有极大的环境和经济价值,但其脆性较大成为限制其发展的主要原因,为解决聚乳酸(PLA)韧性差这一问题,将PLA与聚己二酸对苯二甲酸丁二酯(PBAT)共混可显著增强其韧性。PLA/PBAT复合膜作为一种生物可降解材料,因其具有原料丰富、成本低廉和环境友好等优点被广泛应用。该文概述了PLA/PBAT复合膜的不同制备方法及工艺研究现状。总结了复合膜的改性技术包括无机填料、扩链增容、交联剂改性、淀粉改性和协同改性等。最后介绍了PLA/PBAT复合膜在食品包装中的潜在应用及发展前景,以期为PLA/PBAT复合膜在未来食品包装中的研究提供理论参考和新思路。
Polylactic acid(PLA)is a biodegradable and bio-based aliphatic polyester.It has received extensive attention due to its great environmental and economic value.As a biodegradable material,Polylactic acid(PLA)has poor impact toughness,resulting in a limitation of application.Blending PLA with polybutylene adipate terephthalate(PBAT)can significantly enhance its toughness.PLA/PBAT composite films,as a biodegradable material,is widely used due to its advantages of abundant raw materials,low cost,and environmental friendliness.This article outlines the different preparation methods and current research status of PLA/PBAT composite membranes.The modification technologies of composite membranes,including inorganic fillers,chain expansio n and compatibilization,crosslinking agent modification,starch modification,and synergistic modification are summarized.Finally,the application and development prospect of PLA/PBAT composite films in food packaging is introduced,whic h provide theoretical references and new ideas for future research on PLA/PBAT films in food packaging.
作者
雷时雨
宋景新
李帅
LEI Shiyu;SONG Jingxin;LI Shuai(School of Food Engineering,Jilin Institute of Agricultural Science and Technology,Jilin 132101,China;Systems Engineering Institute,Academy of Military Science,B eijing 100010,China)
出处
《食品工业科技》
CAS
北大核心
2024年第6期372-379,共8页
Science and Technology of Food Industry
基金
大学生创新创业训练计划项目(GJ202211439023)
全军后勤重点项目(BX119C001)。
