Macro-micro relationship in nanostructured functional composites

Zanotto, Antonio; Spinella, Alberto; Nasillo, Giorgio; Caponetti, Eugenio; Luyt, A. S.

doi:10.3144/expresspolymlett.2012.43

Cited by 16 publications

(7 citation statements)

References 18 publications

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“…The thermal stability of HC has been characterized by TGA and shown in Figure (c). The observed increase in the thermal stability may be due to the restricted mobility of the polymer chain near the rGO surface . Graphene sheets act as inflammable anisotropic material, which forms jammed network during combustion that retards transport of the decomposition products.…”

Section: Resultsmentioning

confidence: 99%

Investigation of Electrical and Thermal Properties of Reduced Graphene Oxide–Multiwalled Carbon Nanotubes/PMMA Hybrid Nanocomposite

Mahakul

Saha

et al. 2017

Physica Status Solidi (a)

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Electrical and thermal properties of the hybrid composites, prepared using reduced graphene oxide (rGO), multi-walled carbon nanotubes (MWCNTs), and Poly (methyl methacrylate) (PMMA) have been investigated. In this hybrid composite, the effect of rGO wt.% in MWCNTs/PMMA composite has been investigated. The investigation demonstrates that the rGO-MWCNTs/ PMMA hybrid composite achieved considerable improvements in electrical properties compared to the MWCNTs/PMMA and rGO/PMMA composites. The hybrid nanocomposite exhibits a percolation threshold of around 0.743 wt.% which is less than that of MWCNTs/PMMA (p c ¼ 0:838wt:%) and rGO/PMMA (p c ¼ 1wt:%) composites and has a maximum conductivity of 1.546 Â 10 À1 S cm À1 with a filler content of 6 wt.% rGO. The experimentally observed improved electrical and thermal properties as a result of increased rGO wt.% in MWCNTs/PMMA are attributed to a synergistic effect of MWCNTs and rGO. The experimentally observed physical properties of the rGO-MWNTs/PMMA nanocomposite suggest it as potential material for future applications.

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Section: Resultsmentioning

confidence: 99%

Investigation of Electrical and Thermal Properties of Reduced Graphene Oxide–Multiwalled Carbon Nanotubes/PMMA Hybrid Nanocomposite

Mahakul

Saha

et al. 2017

Physica Status Solidi (a)

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“…Agglomeration of unmodified nanotubes inside polymer at high MWCNTs contents (4 wt%), due to unequal distribution did not cause major constraint in PMMA chain motion. Regardless on that fact, a significant polymer‐filler interaction led to reduction in the chain motion of the PMMA segments, reflected in increased T g . In the case of the composites containing fid‐MWCNT, the optimal network structure, their uniform dispersion, good alignment, and restricted segmental motion of the PMMA chains was accomplished with the highest content of carbon nanotubes.…”

Section: Resultsmentioning

confidence: 99%

Structural properties of the multiwall carbon nanotubes/poly(methyl methacrylate) nanocomposites: Effect of the multiwall carbon nanotubes covalent functionalization

Brković

Pavlović

et al. 2016

Polymer Composites

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EXPERIMENTALMWCNTs (Sigma-Aldrich), prepared by a chemical vapor deposition (CVD) method, before modification were thermally treated at 1,2008C under nitrogen for 4 h. The purity of MWCNTs was more than 95% and the outer and inner diameters were 20-30 and 5-10 nm, respectively, the length between 5 and 200 mm and specific surface area 40-600 m 2 /g. Commercially available PMMA (Acryrex V R CM205, Taiwan) M w 5 90,400 g/mol was purchased from Chi Mei Corp. All other reagents,

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“…The YAG:Ce-PMMA nanocomposite was prepared by adding YAG:Ce nanopowder to a mixture of methyl methacrylate monomer and 2-methacrylic acid. 2,2-diethoxyacetophenone was added to this mixture to start a photocuring process followed by a 256 nm lamp irradiation until polymerization occurred [27,28]. YAG:Ce-encapsulated PMMA composite particles were produced by electrohydrodynamic atomization.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of YAG:Ce,Gd and YAG:Ce,Gd/PMMA nanocomposites for optoelectronic applications

et al. 2014

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A sol-gel method was developed to obtain cerium-, gadolinium-(co)activated yttrium aluminum garnet (YAG:Ce,Gd) phosphor. The composite was obtained by incorporating YAG:Ce,Gd powder in poly(methyl methacrylate) (PMMA) matrix in the presence of tetrahydrofuran (THF). Sample characterization was performed using Fourier transform infrared spectrometry, X-ray diffraction, energy dispersive X-ray spectroscopy, field emission scanning electron microscopy, and fluorescence spectroscopy. Results showed a garnet pure phase at 1000 C, a nanoscale phosphor with spherical morphology and a good dispersion in PMMA matrix without structural modification of YAG:Ce,Gd in the composite. This type of phosphor can be used for all commercial blue chips and YAG:Ce,Gd/PMMA composite is a good candidate for white light-emitting devices.

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Macro-micro relationship in nanostructured functional composites

Cited by 16 publications

References 18 publications

Investigation of Electrical and Thermal Properties of Reduced Graphene Oxide–Multiwalled Carbon Nanotubes/PMMA Hybrid Nanocomposite

Investigation of Electrical and Thermal Properties of Reduced Graphene Oxide–Multiwalled Carbon Nanotubes/PMMA Hybrid Nanocomposite

Structural properties of the multiwall carbon nanotubes/poly(methyl methacrylate) nanocomposites: Effect of the multiwall carbon nanotubes covalent functionalization

Synthesis and characterization of YAG:Ce,Gd and YAG:Ce,Gd/PMMA nanocomposites for optoelectronic applications

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