Rubber-toughened polylactide

In contrast, Li and Shimizu [103] ascribed the toughening behavior of the PLA-based blends to debonding at the rubber/matrix interface during deformation, which released the hydrostatic stress and facilitated the occurrence of shear yielding. When the hydrostatic stress is released within a PLA/polyurethane elastomer (PU) blend, debonding is easily induced at the interface between the (PU) domains and PLA matrix. This results in voids around the rubber, which allows shear yielding and improved the toughness of the materials, as shown by 

Another study regarding biosourced PLA blends with different contents of poly(ethylene oxide-/)-amide-12) (PEBA) was investigated by Hanet /. [117]. The authors have found that the impact triggered not only the generation of fibrils 

Manu- facturer Impact modifier Nature Value Optimal loading (%) Applications Specificity References ro JL 

DuPont Biomax Ethylene-acrylate Melt stability 2-5 Bags Nonfood applications [119-123] o 

Arkema Biostrength M Acrylic core—shell Transparent 2-6 Transparent Films [124-130]  

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