Ambient-Temperature Waterborne Polymer/rGO Nanocomposite Films: Effect of rGO Distribution on Electrical Conductivity

2019 ◽  
Vol 11 (51) ◽  
pp. 48450-48458 ◽  
Author(s):  
Yasemin Fadil ◽  
Le N. M. Dinh ◽  
Monique O. Y. Yap ◽  
Rhiannon P. Kuchel ◽  
Yin Yao ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Ambient Temperature ◽  
Nanocomposite Films

Enhanced electrical conductivity of Au–LaNiO3 nanocomposite thin films by chemical solution deposition

RSC Advances ◽  
2015 ◽  
Vol 5 (94) ◽  
pp. 76783-76787 ◽  
Author(s):  
H. L. Wang ◽  
X. K. Ning ◽  
Z. J. Wang
Keyword(s):  
Thin Films ◽  
Electrical Conductivity ◽  
Electrical Properties ◽  
Chemical Solution Deposition ◽  
Nanocomposite Films ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Nanocomposite Thin Films ◽  
One Step

Au–LaNiO3 (Au–LNO) nanocomposite films with 3.84 at% Au were firstly fabricated by one-step chemical solution deposition (CSD), and their electrical properties were investigated.

Simple route for the preparation of graphene/poly(styrene-b -butadiene-b -styrene) nanocomposite films with enhanced electrical conductivity and hydrophobicity

2018 ◽  
Vol 67 (8) ◽  
pp. 1118-1127
Author(s):  
Dejan P Kepić ◽  
Ivan S Ristić ◽  
Milena T Marinović-Cincović ◽  
Davor B Peruško ◽  
Zdenko Špitálsky ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Nanocomposite Films ◽  
Simple Route

Electrically conductive polymer/rGO nanocomposite films at ambient temperature via miniemulsion polymerization using GO as surfactant

Nanoscale ◽  
2019 ◽  
Vol 11 (14) ◽  
pp. 6566-6570 ◽  
Author(s):  
Yasemin Fadil ◽  
Vipul Agarwal ◽  
Florent Jasinski ◽  
Stuart C. Thickett ◽  
Hideto Minami ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Conductive Polymer ◽  
Miniemulsion Polymerization ◽  
Polymer Nanoparticles ◽  
Nanocomposite Films ◽  
Electrically Conductive ◽  
Conductive Films

A facile method to synthesize colloidally stable polymer nanoparticles decorated with GO sheets via miniemulsion polymerization, which enables the preparation of electrically conductive films using a simple dropcasting method.

scholarly journals Polymer-Single Wall Carbon Nanotube Composites for Potential Spacecraft Applications

2001 ◽  
Vol 706 ◽  
Author(s):  
Cheol Park ◽  
Zoubeida Ounaies ◽  
Kent A. Watson ◽  
Kristin Pawlowski ◽  
Sharon E. Lowther ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Composite Films ◽  
Polymeric Materials ◽  
Polymer Nanocomposite ◽  
Weight Percent ◽  
Nanocomposite Films ◽  
Mechanical And Thermal Properties ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon

AbstractPolymer-single wall carbon nanotube (SWNT) composite films were prepared and characterized as part of an effort to develop polymeric materials with improved combinations of properties for potential use on future spacecraft. Next generation spacecraft will require ultra-lightweight materials that possess specific and unique combinations of properties such as radiation and atomic oxygen resistance, low solar absorptivity, high thermal emissitivity, electrical conductivity, tear resistance, ability to be folded and seamed, and good mechanical properties. The objective of this work is to incorporate sufficient electrical conductivity into space durable polyimides to mitigate static charge build-up. The challenge is to obtain this level of conductivity (10-8 S/cm) without degrading other properties of importance, particularly optical transparency. Several different approaches were attempted to fully disperse the SWNTs into the polymer matrix. These included high shear mixing, sonication, and synthesizing the polymers in the presence of pre-dispersed SWNTs. Acceptable levels of conductivity were obtained at loading levels less than one tenth weight percent SWNT without significantly sacrificing optical properties. Characterization of the nanocomposite films and the effect of SWNT concentration and dispersion on the conductivity, solar absorptivity, thermal emissivity, mechanical and thermal properties were discussed. Fibers and non-woven porous mats of SWNT reinforced polymer nanocomposite were produced using electrospinning.

Structure and Mechanical Properties of Severely Deformed Cu-Cr-Zr Alloys Produced by Accumulative Roll-Bonding Process

2008 ◽  
Vol 584-586 ◽  
pp. 791-796 ◽  
Author(s):  
Kazuo Kitagawa ◽  
T. Akita ◽  
K. Kita ◽  
Masahide Gotoh ◽  
Naoki Takata ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Ambient Temperature ◽  
Accumulative Roll Bonding ◽  
Aging Treatment ◽  
Alloy Sheet ◽  
Proof Stress ◽  
Roll Bonding ◽  
Fine Grained ◽  
Zr Alloys

Aging behavior and mechanical properties of ultra fine grained Cu-Cr-Zr alloy sheet produced by accumulative roll bonding (ARB) process were investigated. A Cu-0.85Cr-0.07Zr (in mass%) alloy was solution treated and then cold-rolled at ambient temperature in the sheet of 1 mm thick. The sheets were heavily deformed by ARB process at ambient temperature up to 5 cycles. The grain size was reduced down to 210 nm and the fraction of high angle grain boundaries (HAGB’s) in the specimen after ARB process was 63%. The proof stress ( σ 0.2) and elongation were 540 MPa and 10%, respectively. Due to the aging treatment, a little grain growth took place (240 nm) and the fraction of HAGB’s was increased to 67%. The proof stress and elongation of the aged one increased to 605 MPa and 15%, respectively. It was noteworthy that the electrical conductivity remarkably increased from 35% to 79%IACS by the aging treatment. It was concluded that the aging treatment after ARB process enhanced not only the mechanical properties but also the electrical conductivity in the Cu-Cr-Zr alloys.

scholarly journals Effect of Surfactant Type and Sonication Energy on the Electrical Conductivity Properties of Nanocellulose-CNT Nanocomposite Films

2018 ◽  
Vol 19 (6) ◽  
pp. 1819 ◽  
Author(s):  
Sanna Siljander ◽  
Pasi Keinänen ◽  
Anna Räty ◽  
Karthik Ramakrishnan ◽  
Sampo Tuukkanen ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Nanocomposite Films

Ionic Conduction Mechanisms in CaF2 and CaF2-Al2O3 Nanocomposite Films on Al2O3 Substrates

1993 ◽  
Vol 318 ◽  
Author(s):  
F. A. Modine ◽  
D. Lubben ◽  
J. B. Bates
Keyword(s):  
Activation Energy ◽  
Electrical Conductivity ◽  
Ionic Conduction ◽  
Electrical Conductance ◽  
High Conductivity ◽  
Nanocomposite Films ◽  
Second Phase ◽  
Mole Percent ◽  
Interdigital Electrodes

ABSTRACTThin films of pure CaF2 and nanocomposite mixtures of Al2O3 with CaF2 were sublimated on Al2O3 substrates. Interdigital electrodes allowed in situ measurements of the electrical conduction of films as a function of thickness, deposition rate, composition, time, and temperature. The electrical conductivity in pure CaF2 adjacent to an Al2O3 interface sometimes exceeded the bulk CaF2 conductivity (i.e., value at more than 50 nm distance) by as much as a factor of 6700 at 200°C. The high conductivity is characterized by an activation energy of 0.6 ± 0.1 eV, which is significantly lower than the activation energy of about 1.0 eV for conduction in the bulk. However, this high conductivity is thermally unstable and diminishes in time. A high but stable conductivity was obtained in CaF2 films containing about 10 mole percent Al2O3 as a dispersed second phase. At 200°C, a 2-phase film gave a factor of 360 enhancement over the measured bulk CaF2 conductivity and a factor of 7 improvement over the best previously reported conductivity for CaF2-Al203 composite materials. The origin of enhanced conduction in CaF2 is attributed to ion transport along dislocations. Dislocations anneal with a characteristic log of time dependence that is recognizable in the annealing behavior of the electrical conductivity. Presumably, the addition of a dispersed second phase of Al2O3 to CaF2 serves both to generate and to pin dislocations; the electrical conductance is thereby enhanced and stabilized.

scholarly journals Processible nanomaterials with high conductivity and magnetizability. Preparation and properties of maghemite/polyaniline nanocomposite films

2000 ◽  
Vol 72 (1-2) ◽  
pp. 157-162 ◽  
Author(s):  
Ben Zhong Tang ◽  
Yanhou Geng ◽  
Qunhui Sun ◽  
Xi Xiang Zhang ◽  
Xiabin Jing
Keyword(s):  
Electrical Conductivity ◽  
Magnetic Susceptibility ◽  
Anionic Surfactants ◽  
High Conductivity ◽  
Nanocomposite Films ◽  
Benzenesulfonic Acid ◽  
Free Standing ◽  
Camphorsulfonic Acid ◽  
Doped Polymers ◽  
Polyaniline Nanocomposite

A versatile process employing anionic surfactants has been developed for the preparation of processible nanocomposite films with electrical conductivity and magnetic susceptibility. Maghemite (γFe2O3) nanoclusters (~10 nm in size) are coated with 4-dodecyl-benzenesulfonic acid, and polyaniline (PAn) chains are doped with 10-camphorsulfonic acid. The coated nanoclusters and doped polymers are soluble in common solvents, and casting the solutions readily gives free-standing nanocomposite films with nanocluster contents as high as ~50 wt %. The γFe2O3/PAn nanocomposites show high conductivity (82–237 S cm -1 ) and magnetizability (up to ~35 emu/g γFe2O3).

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