Salehiyan, RezaNofar, MMalkappa, KurumaRay, Suprakas S2020-10-082020-10-082020-09Salehiyan, R,. Nofar, M,. Malkappa, K. & Ray, S.S. 2020. Effect of nanofillers characteristics and their selective localization on morphology development and rheological properties of melt-processed polylactide/poly(butyleneadipate-co-terephthalate) blend composites. Polymer Engineering and Science, pp. 1-120032-38881548-2634doi.org/10.1002/pen.25505https://onlinelibrary.wiley.com/doi/full/10.1002/pen.25505https://onlinelibrary.wiley.com/doi/epdf/10.1002/pen.25505http://hdl.handle.net/10204/11606Copyright: 2020, Wiley Online Library. Due to copyright restrictions, the attached PDF file contains the abstract of the full-text item. For access to the full-text item, please consult the publisher's website.This article reports the effects of the characteristics and selective localization of nanofillers on the morphology development and rheological properties of melt-processed polylactide/poly(butylene adipate-co-terephthalate) (PLA/PBAT) blend composites. Four types of nanofillers (1 wt%) are used: nanoclay (Cloisite30B [C30B]), carbon nanotubes (CNTs), nanosilica, and graphene oxide (GO). Transmission electron microscopy studies reveal that C30B is localized mainly at the PLA/PBAT interface, whereas silica, GO, and CNT are localized in PBAT droplets, although some CNTs also appear toward the interface inside the PBAT. Despite their selective localization inside the PBAT, CNTs are found to be the most effective particles for droplet size reduction, whereas silica nanoparticles are ineffective. The CNT bundles recoil during melt blending, and eventually, their breakage facilitates droplet breakup. The effects of nanofiller localization and annealing under dynamic shear on the blend morphologies are also explored through rheological analysis. The results show an anomalous relationship with the morphologies of the composites. It is also found that both coalescence and thermal degradation are involved in the annealing process of the blends. Interestingly, the CNT-filled composites may have been transformed into co-continuous-like structures during annealing, unlike the other blends studied here.enBlendsCompositesNanofillersPoly(butylene adipate-co-terephthalate)PBATPolylactidePLAArticleSalehiyan, R., Nofar, M., Malkappa, K., & Ray, S. S. (2020). Effect of nanofillers characteristics and their selective localization on morphology development and rheological properties of melt-processed polylactide/poly(butyleneadipate-co-terephthalate) blend composites. http://hdl.handle.net/10204/11606Salehiyan, Reza, M Nofar, Kuruma Malkappa, and Suprakas S Ray "Effect of nanofillers characteristics and their selective localization on morphology development and rheological properties of melt-processed polylactide/poly(butyleneadipate-co-terephthalate) blend composites." (2020) http://hdl.handle.net/10204/11606Salehiyan R, Nofar M, Malkappa K, Ray SS. Effect of nanofillers characteristics and their selective localization on morphology development and rheological properties of melt-processed polylactide/poly(butyleneadipate-co-terephthalate) blend composites. 2020; http://hdl.handle.net/10204/11606.TY - Article AU - Salehiyan, Reza AU - Nofar, M AU - Malkappa, Kuruma AU - Ray, Suprakas S AB - This article reports the effects of the characteristics and selective localization of nanofillers on the morphology development and rheological properties of melt-processed polylactide/poly(butylene adipate-co-terephthalate) (PLA/PBAT) blend composites. Four types of nanofillers (1 wt%) are used: nanoclay (Cloisite30B [C30B]), carbon nanotubes (CNTs), nanosilica, and graphene oxide (GO). Transmission electron microscopy studies reveal that C30B is localized mainly at the PLA/PBAT interface, whereas silica, GO, and CNT are localized in PBAT droplets, although some CNTs also appear toward the interface inside the PBAT. Despite their selective localization inside the PBAT, CNTs are found to be the most effective particles for droplet size reduction, whereas silica nanoparticles are ineffective. The CNT bundles recoil during melt blending, and eventually, their breakage facilitates droplet breakup. The effects of nanofiller localization and annealing under dynamic shear on the blend morphologies are also explored through rheological analysis. The results show an anomalous relationship with the morphologies of the composites. It is also found that both coalescence and thermal degradation are involved in the annealing process of the blends. Interestingly, the CNT-filled composites may have been transformed into co-continuous-like structures during annealing, unlike the other blends studied here. DA - 2020-09 DB - ResearchSpace DP - CSIR KW - Blends KW - Composites KW - Nanofillers KW - Poly(butylene adipate-co-terephthalate) KW - PBAT KW - Polylactide KW - PLA LK - https://researchspace.csir.co.za PY - 2020 SM - 0032-3888 SM - 1548-2634 T1 - Effect of nanofillers characteristics and their selective localization on morphology development and rheological properties of melt-processed polylactide/poly(butyleneadipate-co-terephthalate) blend composites TI - Effect of nanofillers characteristics and their selective localization on morphology development and rheological properties of melt-processed polylactide/poly(butyleneadipate-co-terephthalate) blend composites UR - http://hdl.handle.net/10204/11606 ER -