Experimental study demonstrates enhanced crystallization and tensile strength in polylactic acid modified with talc and PEG, suggesting improved formulations for industrial bioplastics.
In this study, polylactic acid (PLA) was selected as the matrix, with Talc, Talc/poly(ethylene glycol) (PEG), and Talc/triethyl citrate (Tec) chosen as fillers. PLA/Talc, PLA/Talc/PEG, and PLA/Talc/Tec blends with varying filler contents were prepared to investigate the effects of composite fillers, particularly combinations of nucleating and plasticizing agents. The impacts of Talc, Talc/PEG, and Talc/Tec on overall properties of PLA were analyzed, and the mechanisms were also discussed. The mechanical properties of PLA varied with the type and content of fillers. The PLA/Talc system showed a decreasing trend in mean tensile strength with increasing filler content, whereas the PLA/Talc/PEG and PLA/Talc/Tec systems generally showed an increasing trend. With regard to crystallization performance, the order was PLA/Talc/PEG > PLA/Talc > PLA/Talc/Tec > PLA. The self‐nucleation temperature range (Domain II width) of PLA/Talc/PEG and PLA/Talc/Tec increased with filler content. Thermal stability was ranked as PLA/Talc/PEG > PLA/Talc > PLA > PLA/Talc/Tec. This research elaborated on how composite fillers affect PLA properties, providing valuable guidance for formulation design and industrial production.
No takes yet. Share an insight, caveat, or question.
Yang et al. (2026) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: