6533b859fe1ef96bd12b6e5a
RESEARCH PRODUCT
High performance composites containing perfluoropolyethers-functionalized carbon-based nanoparticles: Rheological behavior and wettability
Walter NavarriniMaurizio SansoteraElisabetta MoriciRossella ArrigoGiulia ZerilloLuca MagagninNadka Tzankova DintchevaValeria Maronasubject
B. Rheological propertiePolymer-matrix composites (PMCs)Materials scienceNano-structures Polymer-matrix composites (PMCs) Rheological properties Surface properties Perfluoropolyethers nanofillersB. Surface propertiesNanoparticlechemistry.chemical_elementCeramics and Composite02 engineering and technologyCarbon nanotube010402 general chemistry01 natural sciencesPerfluoropolyethers nanofillersIndustrial and Manufacturing Engineeringlaw.inventionchemistry.chemical_compoundA. Polymer-matrix composites (PMCs)lawA. Nano-structures; A. Polymer-matrix composites (PMCs); B. Rheological properties; B. Surface properties; Perfluoropolyethers nanofillers; Ceramics and Composites; Mechanics of Materials; Mechanical Engineering; Industrial and Manufacturing EngineeringA. Nano-structuresSurface propertiesMechanics of MaterialRheological propertiesComposite materialPerfluoropolyethers nanofillerUltra-high-molecular-weight polyethylenechemistry.chemical_classificationMechanical EngineeringPercolation thresholdCarbon blackPolymer021001 nanoscience & nanotechnologyB. Surface propertie0104 chemical sciencesB. Rheological propertieschemistryNano-structuresMechanics of MaterialsA. Nano-structureCeramics and CompositesWetting0210 nano-technologyCarbondescription
Abstract Ultra High Molecular Weight Polyethylene (UHMWPE) based composites filled with carbon nanotubes (CNTs) and carbon black (CB) modified by perfluoropolyethers (PFPE) have been formulated. All composites show a segregated morphology with nanofillers selectively localized at the polymer particle–particle interface. The composites rheological properties have been deeply investigated: the PFPE functionalities linked on CNTs facilitate the semi-3D nanofillers network formation in the composites that show a solid-like behaviour even at lower investigated filler contents, reaching the rheological percolation threshold at lower nanofiller content than bare CNTs filled composites. For composites containing CB, the presence of PFPE is useful to prevent the CB re-aggregation but does not significantly affect the rheological behaviour. Finally, the UHMWPE-based composites containing CNTs-PFPE and CB-PFPE show tunable wettability, due to the inherent hydrophobicity of PFPE chains.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-06-01 |