Search results for "B. Rheological propertie"

showing 3 items of 3 documents

Processing and characterization of highly oriented fibres of biodegradable nanocomposites

2015

Abstract Biodegradable polymeric materials are becoming day by day ever more important in packaging, agriculture, single-use cutleries and other large consumer applications. The major part of those materials is used under the form of film, i.e. subjected to elongational flow, but the main problem is that they often offer poor mechanical properties. Adding nanofillers, like Multi Walled Carbon Nanotubes (MWCNTs) may solve this problem but only if there is a full control of their orientation inside the material. Aim of this work is to investigate the processing-properties-morphology relationships for a system prepared under elongation flow of MaterBi and commercial MWCNTs. The materials were …

B. Rheological propertieMaterials scienceNanocompositeB. Mechanical propertieMechanical EngineeringShear viscosityCarbon nanotubeLow mobilityIndustrial and Manufacturing Engineeringlaw.inventionCharacterization (materials science)Shear (sheet metal)A. Polymer-matrix composites (PMCs)Draw ratioSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiE. Melt-spinningMechanics of MaterialslawCeramics and CompositesElongationComposite materialComposites Part B: Engineering
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High performance composites containing perfluoropolyethers-functionalized carbon-based nanoparticles: Rheological behavior and wettability

2016

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 composi…

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-technologyCarbon
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Multi-functional hindered amine light stabilizers-functionalized carbon nanotubes for advanced ultra-high molecular weight Polyethylene-based nanocom…

2015

Hindered Amine Light Stabilizer (HAS) molecules have been covalently linked on the outer surface of multi-walled carbon nanotubes (CNTs), and the so-obtained multi-functional fillers (HAS-f-CNTs) have been compounded with Ultra High Molecular Weight Polyethylene (UHMWPE) to get composite films. The success of the grafting reaction of the HAS molecules has been confirmed through spectroscopic and thermo-gravimetric analyses. Morphological analyses reveal a segregated microstructure, in which CNT-rich channels surround the polymer domains. This morphology results in improved mechanical properties and appreciable electrical conductive features. More importantly, the addition of only 1 wt.% of …

Polymer-matrix composites (PMCs)B. Rheological propertiePhoto-oxidative resistanceMaterials scienceB. Mechanical propertieComposite numberCeramics and CompositeCarbon nanotubeNano-structureIndustrial and Manufacturing EngineeringA. Nano-structures; A. Polymer-matrix composites (PMCs); B. Mechanical properties; B. Rheological properties; Photo-oxidative resistance; Ceramics and Composites; Mechanics of Materials; Mechanical Engineering; Industrial and Manufacturing Engineeringlaw.inventionchemistry.chemical_compoundA. Polymer-matrix composites (PMCs)lawA. Nano-structuresRheological propertieMechanics of MaterialComposite materialUltra-high-molecular-weight polyethylenechemistry.chemical_classificationB. Mechanical propertiesNanocompositeHindered amine light stabilizersA. Nano-structures; A. Polymer-matrix composites (PMCs); B. Mechanical properties; B. Rheological properties; Photo-oxidative resistance; Ceramics and Composites; Mechanics of Materials; Industrial and Manufacturing Engineering; Mechanical EngineeringMechanical EngineeringPolymerMicrostructureB. Rheological propertieschemistryMechanics of MaterialsA. Nano-structureCeramics and CompositesMechanical propertieStabilizer (chemistry)
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