辽宁石油化工大学学报2026，Vol.46Issue(2)：31-39,9.DOI:10.12422/j.issn.1672-6952.2026.02.004
PBAT/PBAT-GMA/PLA生物降解薄膜的制备及性能研究
Preparation and Properties of PBAT/PBAT-GMA/PLA Biodegradable Films
摘要
Abstract
Poly(adipate-butylene terephthalate)(PBAT)was grafted with glycidyl methacrylate(GMA)to prepare PBAT-GMA,which was subsequently blended with PBAT and poly(lactic acid)(PLA)to obtain PBAT/PBAT-GMA/PLA blends.The effects of PBAT-GMA content on the mechanical properties,micromorphology,barrier properties,and degradability of PBAT/PBAT-GMA/PLA films were systematically studied.The results indicate that increasing the mass fraction of PBAT-GMA significantly enhanced the mechanical properties of the films.When the mass fraction of PBAT-GMA is 15%,the tensile strength increased from 15.28 MPa(longitudinal)and 12.51 MPa(transverse)without PBAT-GMA to 25.61 MPa(longitudinal)and 19.59 MPa(transverse),respectively.Similarly,the elongation at break improved from 109.23%(longitudinal)and 141.32%(transverse)to 217.63%(longitudinal)and 311.22%(transverse).It demonstrates that the incorporation of PBAT-GMA effectively enhanced the compatibility between PBAT and PLA,thereby improving the mechanical properties of the blend.Moreover,with higher PBAT-GMA content,the barrier properties of PBAT/PBAT-GMA/PLA films were also significantly improved.However,the degradation rate of PBAT/PBAT-GMA/PLA films decreased slightly with the increase of PBAT-GMA mass fraction,indicating that the durability of the materials was improved.关键词
聚己二酸-对苯二甲酸丁二醇酯(PBAT)/聚乳酸(PLA)/相容性/薄膜/生物降解Key words
Poly(adipate-butylene terephthalate)(PBAT)/Poly(lactic acid)(PLA)/Compatibility/Films/Biodegradation分类
化学化工引用本文复制引用
刘阳,张广翔,杨佳怡,尹睿卿,毕研峰,赵桂艳..PBAT/PBAT-GMA/PLA生物降解薄膜的制备及性能研究[J].辽宁石油化工大学学报,2026,46(2):31-39,9.基金项目
国家自然科学基金重大研究计划项目(91961110). （91961110）
