Electrophysical Properties of Polymeric Nanocomposites Based on Ferrite/Carbon Nanotube/Copper Iodide

The structural, magnetic and electrophysical properties of composites based on nanosized magnetite chemically modified of copper iodide and polychlortrifluoroethylene have been studied at temperatures 298 – 450 K and CuI concentrations of from 0 to 0,58 volume. It has been found the optimal volume content of copper iodide (~ 0.4) in the composites CuI/Fe3O4, when the interfacial interaction shows most intensively and maximum values electrical parameters take place. The value of the coercive force of nanocomposites CuI/Fe3O4 increases with increasing content copper iodide. It was shown that polymer composites containing CuI/Fe3O4, have higher values of real and imaginary components of complex permittivity and conductivity compared with a system that contains only copper iodide.

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Electrophysical Properties of Nanocomposites on the Basis of Polychlorotrifluoroethylene and Magnesium Oxide Modified with Copper Iodide

Фізика і хімія твердого тіла ◽

10.15330/pcss.17.4.482-486 ◽

2016 ◽

Vol 17 (4) ◽

pp. 482-486 ◽

Cited By ~ 1

Author(s):

R.V. Mazurenko ◽

P.P. Gorbik ◽

G.M. Gunya ◽

S.N. Makhno

Keyword(s):

Magnesium Oxide ◽

Electrophysical Properties ◽

Copper Iodide

Досліджено електрофізичні властивості в надвисокочастотному діапазоні та на низьких частотах композитів на основі хімічно модифікованого йодидом міді високодисперсного оксиду магнію та поліхлортрифторетилена в інтервалі температур 25 - 170оС і концентрацій CuI від 0 до 0,80 об’ємних часток. Встановлено оптимальний об’ємний вміст йодиду міді (~ 0,75) в композитах CuI/MgO, при якому міжфазна взаємодія проявляється найбільш інтенсивно, а електрофізичні параметри набувають максимальних значень. Показано, що полімерні композити, до складу яких входить CuI/MgO, мають вищі значення дійсної та уявної складових комплексної діелектричної проникності та електропровідності в порівнянні з системою, яка не містить модифіковані компоненти.

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The Usage of Conducting Wire Sphere Models for the Estimation of Electrophysical Properties of Multiwalled Carbon Nanotube Spherical Aerogels

physica status solidi (b) ◽

10.1002/pssb.201800193 ◽

2018 ◽

Vol 255 (12) ◽

pp. 1800193 ◽

Cited By ~ 2

Author(s):

Igor O. Dorofeev ◽

Valentin I. Suslyaev ◽

Tatyana S. Karzanova ◽

Sergey I. Moseenkov ◽

Vladimir L. Kuznetsov

Keyword(s):

Carbon Nanotube ◽

Multiwalled Carbon Nanotube ◽

Electrophysical Properties ◽

Multiwalled Carbon ◽

Conducting Wire

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DC and AC Properties of Aligned Carbon Nanotube Forests and Polymeric Nanocomposites

49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference <br> 16th AIAA/ASME/AHS Adaptive Structures Conference<br> 10t ◽

10.2514/6.2008-1854 ◽

2008 ◽

Author(s):

Ludovico Megalini ◽

Brian Wardle ◽

Diego Saito ◽

Enrique Garcia ◽

Anastasios John Hart

Keyword(s):

Carbon Nanotube ◽

Polymeric Nanocomposites ◽

Carbon Nanotube Forests

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Percolating conductive networks in multiwall carbon nanotube-filled polymeric nanocomposites: towards scalable high-conductivity applications of disordered systems

Nanoscale ◽

10.1039/c9nr00216b ◽

2019 ◽

Vol 11 (17) ◽

pp. 8565-8578 ◽

Cited By ~ 7

Author(s):

Alexander J. Wang ◽

Kang-Shyang Liao ◽

Surendra Maharjan ◽

Zhuan Zhu ◽

Brian McElhenny ◽

...

Keyword(s):

Carbon Nanotube ◽

Disordered Systems ◽

High Conductivity ◽

Multiwall Carbon Nanotube ◽

Polymeric Nanocomposites ◽

Multiwall Carbon

The present work serves as a scalable basis upon which to expand the usage of MWCNT/polymeric nanocomposites into high-conductivity applications.

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Theoretical Prediction and Experimental Study of Mechanical Properties for Random and Magnetically Aligned Single-Walled Carbon Nanotube/Epoxy Composites

MRS Proceedings ◽

10.1557/proc-381-q10.1 ◽

2003 ◽

Vol 791 ◽

Cited By ~ 6

Author(s):

Ben Wang ◽

Ravi Shankar ◽

Zhiyong Liang ◽

Zhi Wang ◽

Chuck Zhang ◽

...

Keyword(s):

Mechanical Properties ◽

Carbon Nanotube ◽

High Performance ◽

Experimental Results ◽

Reinforced Composites ◽

Polymeric Nanocomposites ◽

Single Walled Carbon ◽

Theoretical Predictions ◽

Walled Carbon Nanotubes ◽

Magnetically Aligned

ABSTRACTSingle-walled carbon nanotubes (SWNTs) have exceptional mechanical and functional properties. Many researchers consider SWNTs as the most promising reinforcement for realizing the optimal structural and multifunctional potential of the next generation of high performance nanocomposites. However, due to poor dispersion, weak interfacial bonding and deficient tube orientation, current nanotube-based nanocomposites fail to realize their anticipated properties. A new approach was developed by the authors to use preformed nanotube tube networks (called buckypapers) and a resin infiltration method for producing bulk polymeric nanocomposites with controlled nanostructure and high tube loading. Desired tube alignment in nanocomposites can be achieved by using magnetically aligned carbon nanotube buckypapers, in which SWNTs will tend to align along the direction of applied magnetic field. The mechanical properties of the resultant nanocomposites have been tested. The storage modulus of the magnetically aligned nanocomposites is as high as 47 GPa, which is one of the highest reported values of nanotube-reinforced composites.In this research, we investigated the influences of tube dispersion, loading and orientation on the mechanical properties of SWNT-reinforced composites. Random and aligned discontinuous reinforcement models of composites were applied to predict the tensile moduli of both individually dispersed SWNT-based and SWNT rope-based nanocomposites. The nanostructural parameters used in the calculation models were determined based on our experimental observations. Comparisons between theoretical estimates and experimental results have shown that the formation of SWNT ropes in the composites has a significant influence on the mechanical properties. The experimental results of the both random and aligned SWNT rope composites are in good agreement with the theoretical predictions.

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