PMMA nanocomposites with graphene oxide hybrid nanofillers

Polymethylmethacrylate (PMMA) and nanocomposites containing 0.5 wt.% graphene oxide (GO), graphene oxide-multiwalled carbon nanotubes (NT) or graphene oxide-ionic liquid 1-octyl-3-methylimidazolium tetrafluoroborate (IL) (PMMA+GO; PMMA+GO-NT; PMMA+GO-IL) were processed by a single step twin-screw mi...

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Published in:Express polymer letters 2019-10, Vol.13 (10), p.910-922
Main Authors: Sanes, J., Ojados, G., Pamies, R., Bermudez, M. D.
Format: Article
Language:English
Subjects:
Carbon
Composite materials
Dispersion
Dynamic mechanical analysis
dynamic mechanical properties
Electron microscopy
Energy
Energy transmission
Engineering
Epoxy resins
Extrusion
Graphene
Graphene oxide
Ionic liquids
Ions
Mechanical properties
microextrusion
Microscopy
Morphology
Multi wall carbon nanotubes
Nanocomposites
Nanomaterials
Photoelectrons
Polymers
Polymethyl methacrylate
Raman spectroscopy
Rheological properties
Rheology
Science
Storage modulus
Temperature profiles
Viscosity
X ray analysis
X ray photoelectron spectroscopy
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container_issue 10
container_start_page 910
container_title Express polymer letters
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creator Sanes, J.
Ojados, G.
Pamies, R.
Bermudez, M. D.
description Polymethylmethacrylate (PMMA) and nanocomposites containing 0.5 wt.% graphene oxide (GO), graphene oxide-multiwalled carbon nanotubes (NT) or graphene oxide-ionic liquid 1-octyl-3-methylimidazolium tetrafluoroborate (IL) (PMMA+GO; PMMA+GO-NT; PMMA+GO-IL) were processed by a single step twin-screw micro-extrusion. The effect of two extrusion temperature profiles and two specific mechanical energy (SME) values has been studied. Results of Raman spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM), energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) analysis show changes in GO composition and morphology, and better dispersion due to interaction with IL. Dynamic mechanical analysis shows that extrusion conditions affect storage modulus of hybrid nanocomposites. Rheological measurements show that the complex viscosity of the nanocomposites is higher than that of PMMA at low shear rates for materials processed under the lower value of SME. A maximum viscosity increase of 62.6% is found for PMMA+GO-NT. The lowest increase found for PMMA+GOIL, is attributed to the better dispersion of the hybrid GO-IL nanofiller.
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subjects Carbon
Composite materials
Dispersion
Dynamic mechanical analysis
dynamic mechanical properties
Electron microscopy
Energy
Energy transmission
Engineering
Epoxy resins
Extrusion
Graphene
Graphene oxide
Ionic liquids
Ions
Mechanical properties
microextrusion
Microscopy
Morphology
Multi wall carbon nanotubes
Nanocomposites
Nanomaterials
Photoelectrons
Polymers
Polymethyl methacrylate
Raman spectroscopy
Rheological properties
Rheology
Science
Storage modulus
Temperature profiles
Viscosity
X ray analysis
X ray photoelectron spectroscopy
title PMMA nanocomposites with graphene oxide hybrid nanofillers
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