材料科学
热塑性塑料
韧性
复合材料
甲基丙烯酸缩水甘油酯
己二酸
淀粉
傅里叶变换红外光谱
复配
热变形温度
扫描电子显微镜
丙烯酸酯
聚合物
艾氏冲击强度试验
共聚物
化学工程
极限抗拉强度
生物化学
工程类
化学
作者
Mohong Xu,Xiangyu Yan,Fengqing Li,Yang Xiao,Jiqian Li,Zhigang Liu,Hezhi He,Yang Li,Zhiwen Zhu
标识
DOI:10.1016/j.ijbiomac.2023.126446
摘要
The preparation of biodegradable composites with high toughness and low cost is of great significance for their application and promotion in the packaging field. As a renewable and biodegradable material with abundant sources, the inclusion of starch in biodegradable composites can significantly reduce costs. However, the poor compatibility between starch and matrix severely limits its large-scale practical application. In this work, the poly(butylene adipate-co-terephthalate)/thermoplastic starch/ethylene-methyl acrylate-glycidyl methacrylate (PBAT/TPS/EGMA) blends with high toughness were prepared by melt compounding. The elongation at break increased significantly from 533 ± 125 % for the PBAT/TPS(60/40) blend to 1188 ± 28 % for the PBAT/TPS/EGMA(60/40/2) blend. According to the analysis of Fourier Transform Infrared Spectroscopy (FT-IR) and Scanning Electron Microscope (SEM), the toughness improvement brought about by the addition of EGMA can be attributed to the enhanced compatibility between PBAT and TPS and the refinement of TPS particle size. The knowledge obtained from this study provides a method to enhance the toughness of biodegradable polymer composites with high TPS loading, which will facilitate the practical application of starch in the packing field.
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