Electrically and Thermally Conductive Low Density Polyethylene-Based Nanocomposites Reinforced by MWCNT or Hybrid MWCNT/Graphene Nanoplatelets with Improved Thermo-Oxidative Stability

Paszkiewicz, Sandra; Szymczyk, Anna; Pawlikowska, Daria; Subocz, J.; Zenker, M.; Masztak, R.

doi:10.3390/nano8040264

Cited by 55 publications

(71 citation statements)

References 68 publications

(72 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is almost 6 orders of magnitude higher than for neat EVA copolymer. Obtained materials did not show a sharp increase in electrical conductivity along with the increase in MWCNTs content, in contrast to the results from previous work in which the matrix was low-density polyethylene (LDPE) [ 78 ]. In LDPE/MWCNTs nanocomposites the percolation threshold was observed at the loading of 1.5 wt.% of the same MWCNTs [ 78 ].…”

Section: Resultscontrasting

confidence: 99%

Comparing Multi-Walled Carbon Nanotubes and Halloysite Nanotubes as Reinforcements in EVA Nanocomposites

et al. 2020

Self Cite

View full text Add to dashboard Cite

The influence of carbon multi-walled nanotubes (MWCNTs) and halloysite nanotubes (HNTs) on the physical, thermal, mechanical, and electrical properties of EVA (ethylene vinyl acetate) copolymer was investigated. EVA-based nanocomposites containing MWCNTs or HNTs, as well as hybrid nanocomposites containing both nanofillers were prepared by melt blending. Scanning electron microcopy (SEM) images revealed the presence of good dispersion of both kinds of nanotubes throughout the EVA matrix. The incorporation of nanotubes into the EVA copolymer matrix did not significantly affect the crystallization behavior of the polymer. The tensile strength of EVA-based nanocomposites increased along with the increasing CNTs (carbon nanotubes) content (increased up to approximately 40% at the loading of 8 wt.%). In turn, HNTs increased to a great extent the strain at break. Mechanical cyclic tensile tests demonstrated that nanocomposites with hybrid reinforcement exhibit interesting strengthening behavior. The synergistic effect of hybrid nanofillers on the modulus at 100% and 200% elongation was visible. Moreover, along with the increase of MWCNTs content in EVA/CNTs nanocomposites, an enhancement in electrical conductivity was observed.

show abstract

Section: Resultscontrasting

confidence: 99%

Comparing Multi-Walled Carbon Nanotubes and Halloysite Nanotubes as Reinforcements in EVA Nanocomposites

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Nanoparticles have shown a promising prospect in improving the electric performance of dielectric materials [ 1 , 2 ]. The insulating oil-based nanofluids exhibit great potential to address the strong demands for power equipment with large capacity, high dielectric strength and small volume in an ultra-high voltage power grid [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Nanoparticle Morphology on Pre-Breakdown and Breakdown Properties of Insulating Oil-Based Nanofluids

Sun

et al. 2018

Nanomaterials

View full text Add to dashboard Cite

Nanoparticles currently in use are challenged in further improving the dielectric strength of insulating oil. There is a great need for a new type of nanoparticle to promote the application of insulating oil-based nanofluids in electric industries. This paper experimentally investigates the effect of nanoparticle morphology on pre-breakdown and breakdown properties of insulating oil-based nanofluids. The positive impulse breakdown voltage of insulating oil can be significantly increased by up to 55.5% by the presence of TiO2 nanorods, up to 1.23 times that of TiO2 nanospheres. Pre-breakdown streamer propagation characteristics reveal that streamer discharge channels turn into a bush-like shape with much denser and shorter branches in the nanofluid with TiO2 nanorods. Moreover, the propagation velocity of streamers is dramatically decreased to 34.7% of that in the insulating oil. The greater improvement of nanorods on the breakdown property can be attributed to the lower distortion of the electric field. Thus, when compared with nanospheres, pre-breakdown streamer propagation of nanofluid is much more suppressed with the addition of nanorods, resulting in a greater breakdown voltage.

show abstract

“…We believe that a low concentration of the nanofillers (1 wt%) is not important for T gDSC evaluation. Similarly, valuable variation in T gDSC of the polymer nanocomposites with both individual (GO and MWCNTs) [55,56] and hybrid (rGO/MWCNTs) [8] carbon nanofillers has not been detected even at wide variation of the nanofillers loading.…”

Section: Thermal Glass Transition Temperature and Related Parametersmentioning

confidence: 99%

“…Intensive investigations of the polymer/GNPs:CNTs nanocomposites have recently been carried out. As polymer matrices, polyethylene terephthalate, polyethylene, polypropylene, polyethylene/polypropylene mixture, polystyrene, polyvinyl alcohol, polyurethane, polyimide, polylactic acid, epoxy resins,vinyl ester resin, synthetic rubbers, acrylonitrile‐butadiene‐styrene‐copolymer, and block‐copolymers were used. The general idea of using hybrid GNP:CNTs nanofillers was to employ CNTs as spacers between the graphene sheets which not only increases the interlayer spacing, but also bridges the defects for electron transfer.…”

Section: Introductionmentioning

confidence: 99%

“…[11][12][13]16,17,20,24] Essentially, polymer composites with hybrid nanofillers were reported to be effective materials for electromagnetic interference shielding. [10,11,13,22] In addition, an enhancing in mechanical properties, [7,8,12,14,16,17,20] thermal [7,8] and electrical [8][9][10][11]13,14,[16][17][18][19]22,24] conductivity, thermal stability [7,12,20] and decreasing in the electrical percolation threshold [11,17] of the hybrid nanocomposites as compared with the single filler nanocomposites were detected. Some authors [16][17][18]20,21,24] reported on a synergetic effect when hybrid nanofillers were used for polymer nanocomposites fabrication.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Morphology, structure, and segmental dynamics in polyazomethine/hybrid carbon nanofillers composites

et al. 2019

View full text Add to dashboard Cite

The polyazomethine/hybrid carbon nanofillers composites were fabricated. The nanofilles were comprised of thermally reduced graphene oxide (rGO) and multi‐walled carbon nanotubes (MWCNTs) varying in rGO:MWCNTs ratio; the total nanofillers loading was 1 wt%. The scanning electron miscroscopy images revealed uniform distribution of the hybrid nanofillers and formation of 3D networks between rGO and MWCNTs. Molecular dynamics of the polymer chains in these nanocomposites was investigated with broadband dielectric spectroscopy. The polymer fragility, the dielectric glass transition temperature, and the dielectric relaxation strength of the nanocomposites were evaluated and analyzed depending on the rGO:MWCNTs ratio. The thermal glass transition temperature and the thermal relaxation strength evaluated from the differential scanning calorimetry data were shown to behave in other manner. This behavior was interpreted in terms of a fraction of polymer being immobilized in an interfacial layer around the nanoparticles.

show abstract

Electrically and Thermally Conductive Low Density Polyethylene-Based Nanocomposites Reinforced by MWCNT or Hybrid MWCNT/Graphene Nanoplatelets with Improved Thermo-Oxidative Stability

Cited by 55 publications

References 68 publications

Comparing Multi-Walled Carbon Nanotubes and Halloysite Nanotubes as Reinforcements in EVA Nanocomposites

Comparing Multi-Walled Carbon Nanotubes and Halloysite Nanotubes as Reinforcements in EVA Nanocomposites

Effect of Nanoparticle Morphology on Pre-Breakdown and Breakdown Properties of Insulating Oil-Based Nanofluids

Morphology, structure, and segmental dynamics in polyazomethine/hybrid carbon nanofillers composites

Contact Info

Product

Resources

About