山东农业大学学报（自然科学版）2025，Vol.56Issue(4)：591-601,11.DOI:10.3969/j.issn.1000-2324.2025.04.006
类水滑石及碳酸钙填充PBAT基薄膜的制备及性能研究
Preparation and Performance of Hydrotalcite-like and Calcium Carbonate-based PBAT Films
摘要
Abstract
The"white pollution"caused by traditional plastic mulch films poses a significant threat to the ecological environment.Increasing environmental awareness and the widespread adoption of sustainable development principles have propelled fully biodegradable mulch films into a research hotspot.Poly(butylene adipate-co-terephthalate)(PBAT)-based films exhibit excellent properties;modifying these films through doping can enhance their overall performance while reducing costs.To produce cost-effective functional agricultural biodegradable films,this study utilized two distinct layered double hydroxides(LDHs)and calcium carbonate(CaCO3),blending them with PBAT via twin-screw extrusion to prepare composite masterbatches.PBAT-based composite films were subsequently fabricated from these masterbatches using extrusion blow molding.A series of structural and performance tests verified the feasibility of blending LDHs into PBAT composite films.These tests analyzed the effects of both modified and unmodified LDHs,as well as CaCO3,on the structure and properties of the composite films.The results demonstrate that LDHs do not affect the structure or crystallinity of PBAT within the composite films.While blending increased film crystallinity,it reduced thermal stability.LDHs improved the mechanical properties and reduced the anisotropy of the films.Among the experimental groups,the composite film incorporating CaCO3 alongside unmodified LDHs exhibited the optimal mechanical performance.Furthermore,the composite films showed enhanced water barrier properties and hydrophobicity.Light transmittance exhibited no significant change,but haze decreased,resulting in improved light transmission characteristics.关键词
聚对苯二甲酸-己二酸丁二醇酯/类水滑石/碳酸钙/全生物降解薄膜/疏水性Key words
PBAT/LDHs/CaCO3/biodegradable film/hydrophobicity分类
通用工业技术引用本文复制引用
祝琳翔,张坤,张炳,宋宜兆,张馨月,刘在琦,解加卓,徐静..类水滑石及碳酸钙填充PBAT基薄膜的制备及性能研究[J].山东农业大学学报（自然科学版）,2025,56(4):591-601,11.基金项目
国家自然科学基金项目(42077127) （42077127）
山东省重点研发计划项目(2021CXGC010810,2020CXGC010803) （2021CXGC010810,2020CXGC010803）
"十四五"国家重点研发计划(2023YFD1700903) （2023YFD1700903）
山东农业大学科研启动项目(72098) （72098）
