Tuning the Electrically Conductive Network of Grafted Nanoparticles in Polymer Nanocomposites by the Shear Field

In this work, by employing a coarse-grained molecular simulation, we investigated the effect of the nanorod stiffness on the relationship between the microstructure and the conductive probability under the quiescent state and under the shear field.

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An Overview of Electrically Conductive Polymer Nanocomposites toward Electromagnetic Interference Shielding

Engineered Science ◽

10.30919/es8d615 ◽

2018 ◽

Cited By ~ 40

Author(s):

Longfei Lyu ◽

◽

Jiurong Liu ◽

Hu Liu ◽

Chuntai Liu ◽

...

Keyword(s):

Polymer Nanocomposites ◽

Electromagnetic Interference ◽

Conductive Polymer ◽

Electromagnetic Interference Shielding ◽

Electrically Conductive

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Surface-tunable, electrically conductive and inexpensive graphene platelets and their hydrophilic polymer nanocomposites

Polymer ◽

10.1016/j.polymer.2020.122851 ◽

2020 ◽

Vol 205 ◽

pp. 122851 ◽

Cited By ~ 1

Author(s):

Ruoyu Wang ◽

Mathias Aakyiir ◽

Aidong Qiu ◽

Jeong-A. Oh ◽

Philip Adu ◽

...

Keyword(s):

Polymer Nanocomposites ◽

Hydrophilic Polymer ◽

Electrically Conductive ◽

Graphene Platelets

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Recent Advances in the Synthesis of Polymer-Grafted Low-K and High-K Nanoparticles for Dielectric and Electronic Applications

Molecules ◽

10.3390/molecules26102942 ◽

2021 ◽

Vol 26 (10) ◽

pp. 2942

Author(s):

Bhausaheb V. Tawade ◽

Ikeoluwa E. Apata ◽

Nihar Pradhan ◽

Alamgir Karim ◽

Dharmaraj Raghavan

Keyword(s):

Energy Density ◽

Polymer Nanocomposites ◽

High Performance ◽

Breakdown Strength ◽

Polymer Nanocomposite ◽

High Energy ◽

Polymer Chains ◽

High Energy Density ◽

Grafted Nanoparticles ◽

Grafting From

The synthesis of polymer-grafted nanoparticles (PGNPs) or hairy nanoparticles (HNPs) by tethering of polymer chains to the surface of nanoparticles is an important technique to obtain nanostructured hybrid materials that have been widely used in the formulation of advanced polymer nanocomposites. Ceramic-based polymer nanocomposites integrate key attributes of polymer and ceramic nanomaterial to improve the dielectric properties such as breakdown strength, energy density and dielectric loss. This review describes the ”grafting from” and ”grafting to” approaches commonly adopted to graft polymer chains on NPs pertaining to nano-dielectrics. The article also covers various surface initiated controlled radical polymerization techniques, along with templated approaches for grafting of polymer chains onto SiO2, TiO2, BaTiO3, and Al2O3 nanomaterials. As a look towards applications, an outlook on high-performance polymer nanocomposite capacitors for the design of high energy density pulsed power thin-film capacitors is also presented.

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Heterogeneous Preparation of Cellulose/Ag/Polyaniline Conductive Composite and its Electrical Property

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.182-183.254 ◽

2012 ◽

Vol 182-183 ◽

pp. 254-258

Author(s):

Zhong Li Zhao ◽

Zun Li Mo ◽

Zhong Yu Chen

Keyword(s):

Electrical Conductivity ◽

Electrical Property ◽

Conductive Network ◽

High Electrical Conductivity ◽

Electrically Conductive ◽

Conductive Composite

Cellulose/Ag/polyaniline conductive composite with rather excellent electrical conductivity was heterogeneously synthesized in this paper. The UV-Vis analysis indicated that homogeneous nanoAg particles deposited on the surface of cellulose in the form of globe particles. They offered some electrons to polyaniline chains. This behavior resulted to the facts that more polyaniline embedded on cellulose and an integrated electrically conductive network formed. Consequently, the high electrical conductivity of the composite was observed. The value was 3.48 S/cm, which was higher two magnitudes than the electrical conductivity of cellulose/polyaniline composite (2.15×10-2S/cm), and even was higher than the electrical conductivity of pure polyaniline (0.142 S/cm). This paper provided a facile method for the preparation of cellulose/Ag/ polyaniline composite with favorable electrical conductivity.

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Effect of curing age on the self-sensing behavior of carbon-based engineered cementitious composites (ECC) under monotonic flexural loading scenario

MATEC Web of Conferences ◽

10.1051/matecconf/201816201034 ◽

2018 ◽

Vol 162 ◽

pp. 01034

Author(s):

Ali Majeed Al-Dahawi

Keyword(s):

Carbon Fibers ◽

The Self ◽

Cementitious Composites ◽

Conductive Network ◽

Engineered Cementitious Composites ◽

Electrically Conductive ◽

Conductive Material ◽

Flexural Loading ◽

Curing Age ◽

Carbon Based

The potential effects of curing age on the self-sensing (piezoresistivity) capability of carbon-based Engineered Cementitious Composites (ECC) specimens are under focus in the present study. This non-structural feature can be regarded as one of the best solutions for continuously monitoring of infrastructures in terms of damage and deformations. Carbon fibers which are a micro-scale electrically conductive material were added to the ECC matrix and well dispersed to create the electrically conductive network. This network is responsible for sensing the applied loads on the prismatic specimens. The self-sensing behavior of electrically conductive prismatic specimens under four-point monotonic flexural loading was investigated and compared with dielectric ECC specimens at four ages of curing (7, 28, 90 and 180 days). The results showed that the developed multifunctional cementitious composites can sense the changes in the applied flexural stresses and the resultant mid-span deflection along the adopted curing ages with an improvement in the later ages.

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