This work aims to investigate the effect of organically modified montmorillonite (OMMT) and vermiculite (OVT) clays on the properties of poly(lactic acid) (PLA)/bio-based polyethylene (BioPE)/clay biocomposites. Ethylene-methyl acrylate-glycidyl methacrylate (EMA-GMA) copolymer was used to improve the interactions between the clay and the bio-based polymers. X-ray diffraction (XRD) patterns indicated a good dispersion of the OMMT and OVT clays in the PLA/BioPE blend. Morphology analysis by scanning electron microscopy (SEM) revealed a substantial decrease in the BioPE particles domain size with the addition of OMMT and OVT clays to PLA/BioPE blend and a better wetting of BioPE phase in the presence of EMA-GMA, resulting in higher impact strength. Dynamic mechanical thermal analysis (DMTA) showed a decrease in the glass transition (T_g) and cold crystallization (T_cc) temperatures of PLA with the addition of OMMT and OVT clays to the PLA/BioPE blend. A significant change in the rheological properties (complex viscosity, storage modulus, and relaxation time) was observed with the addition of EMA-GMA copolymer to PLA/BioPE/clay biocomposites.

这项工作旨在研究有机改性的蒙脱土（OMMT）和ver石（OVT）粘土对聚乳酸（PLA）/生物基聚乙烯（BioPE）/粘土生物复合材料的性能的影响。乙烯-丙烯酸甲酯-甲基丙烯酸缩水甘油酯（EMA-GMA）共聚物用于改善粘土与生物基聚合物之间的相互作用。X射线衍射（XRD）图谱表明OMMT和OVT粘土在PLA / BioPE共混物中具有良好的分散性。通过扫描电子显微镜（SEM）进行的形态分析表明，向EMA / GMA中添加OMMT和OVT粘土到PLA / BioPE共混物中，BioPE颗粒域尺寸显着减小，并且在EMA-GMA存在下BioPE相具有更好的润湿性，从而提高了冲击强度。动态机械热分析（DMTA）显示出玻璃化转变（T_g）和PLA的冷结晶（T _cc）温度，并向PLA / BioPE共混物中添加OMMT和OVT粘土。通过向PLA / BioPE /粘土生物复合材料中添加EMA-GMA共聚物，观察到流变特性（复数粘度，储能模量和松弛时间）发生了显着变化。