螺杆构型对PBAT/Talc复合材料性能的影响

Effect of screw configuration on properties of PBAT/Talc composites

通过模拟和实验相结合的方式研究了不同混合段的螺杆构型对PBAT/Talc复合材料性能的影响。结果表明,物料中填料的分散均匀性与螺杆中分散分布混合螺纹元件个数成正相关的关系,但分散分布混合元件数量的增加会加剧聚合物的降解,导致力学性能下降;以先分布后分散的螺纹元件组合方式制备的复合材料展现了最佳性能。

T he effect of screw configurations of mixing section on the performance of PBAT/Talc composites was in⁃vestigated through a combination of simulation and experimentation.The results indicated that the uniform dispersion of fillers in the matrix was positively correlated with the number of mixing screw elements for dispersion distribution.How⁃ever,an increase in the number of dispersion distribution elements accentuated the degradation of the PBAT matrix,leading to a decrease in the mechanical properties.This study demonstrated that the composites exhibited optimal perfor⁃mance when prepared through a combination of sequential distribution and dispersion of screw elements.