6533b7d2fe1ef96bd125f5c7
RESEARCH PRODUCT
Integrated ternary bionanocomposites with superior mechanical performance via the synergistic role of graphene and plasma treated carbon nanotubes
Andrea MaioRoberto Scaffarosubject
Materials scienceCNTchemistry.chemical_elementMechanical properties02 engineering and technologyCarbon nanotube010402 general chemistry01 natural sciencesIndustrial and Manufacturing Engineeringlaw.inventionchemistry.chemical_compoundPolylactic acidlawUltimate tensile strengthComposite materialchemistry.chemical_classificationNanocompositeNanocompositeGrapheneMechanical EngineeringPolymer021001 nanoscience & nanotechnology0104 chemical sciencesSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialichemistryChemical engineeringMechanics of MaterialsCeramics and CompositesGraphene0210 nano-technologyTernary operationCarbondescription
Abstract Herein, we prepared an integrated ternary bionanocomposite based on polylactic acid (PLA) as a host polymer and two different forms of carbon fillers, i.e. graphene nanoplatelets (GNPs) and carbon nanotubes (CNTs), used simultaneously at extremely low concentrations, relying on the synergistic effect of CNT and graphene nanoreinforcement and a novel, multi-step procedure to achieve a high level dispersion. The results indicated that this multi-step approach allows stiffness increments up to +66%, with simultaneous enhancement of tensile strength (up to +44%), and elongation at break (up to +36%) with respect to neat PLA, by adding an extremely low content (0.5 wt%) of a hybrid combination of CNTs and GNPs. The development of a multistep strategy to achieve molecular level dispersion of multifunctional nanoparticles integrated in a fully renewable polymer matrix allows the premise of industrial-scale production of advanced bionanocomposites with outstanding properties at extremely low loadings.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-07-01 |