Promoting Interfacial Interactions with the Addition of Lignin in Poly(Lactic Acid) Hybrid Nanocomposites
نویسندگان
چکیده
In this paper, the calorimetric response of amorphous phase was examined in hybrid nanocomposites which were prepared thanks to a facile synthetic route, by adding reduced graphene oxide (rGO), Cloisite 30B (C30B), or multiwalled carbon nanotubes (MWCNT) lignin-filled poly(lactic acid) (PLA). The dispersion both lignin and nanofillers successful, according field-emission scanning-electron microscopy (FESEM) analysis. Lignin alone essentially acted as crystallization retardant for PLA, shared feature, except when MWCNT used nanofiller. All systems exhibiting curtailed also showed better thermal stability than neat assessed from thermogravimetric measurements. As consequence favorable interactions between PLA matrix, lignin, nanofillers, homogeneous exfoliation assumed samples increase cooperative rearranging region (CRR) size, being even more remarkable increasing content. signature successful filler inclusion, since no rigid fraction (RAF) reported at filler/matrix interface. Finally, crystallized up their maximum extent glassy state nonisothermal conditions. Despite similar degrees crystallinity RAF, significant variations CRR size observed among samples, revealing different levels mobility constraining phase, probably linked filler-dimension dependence space filling.
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ژورنال
عنوان ژورنال: Polymers
سال: 2021
ISSN: ['2073-4360']
DOI: https://doi.org/10.3390/polym13020272