Interfacial Effect on Dielectric Properties of Polymer Nanocomposites Filled with Core/Shell-Structured Particles

2007 ◽  
Vol 17 (14) ◽  
pp. 2405-2410 ◽  
Author(s):  
Y. Shen ◽  
Y. H. Lin ◽  
C.-W. Nan
Keyword(s):  
Dielectric Properties ◽  
Polymer Nanocomposites ◽  
Core Shell ◽  
Interfacial Effect

Core-shell structured CaCO3@CNF for enhanced dielectric properties of polymer nanocomposites

2019 ◽  
Vol 487 ◽  
pp. 77-81 ◽  
Author(s):  
Quan-Ping Zhang ◽  
Wen-Fan Zhu ◽  
Dong-Ming Liang ◽  
Xiao-Li Wu ◽  
Rui-Chao Chen ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Polymer Nanocomposites ◽  
Core Shell

scholarly journals Interface and Interphase in Polymer Nanocomposites with Bare and Core-Shell Gold Nanoparticles

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 541 ◽  
Author(s):  
Albert J. Power ◽  
Ioannis N. Remediakis ◽  
Vagelis Harmandaris
Keyword(s):  
Polymer Nanocomposites ◽  
Polymer Matrix ◽  
Md Simulations ◽  
Polymer Chains ◽  
Core Shell ◽  
Wulff Construction ◽  
Density Profiles ◽  
Au Nps ◽  
Polymeric Chains ◽  
Terminal Dynamics

Metal nanoparticles are used to modify/enhance the properties of a polymer matrix for a broad range of applications in bio-nanotechnology. Here, we study the properties of polymer/gold nanoparticle (NP) nanocomposites through atomistic molecular dynamics, MD, simulations. We probe the structural, conformational and dynamical properties of polymer chains at the vicinity of a gold (Au) NP and a functionalized (core/shell) Au NP, and compare them against the behavior of bulk polyethylene (PE). The bare Au NPs were constructed via a systematic methodology starting from ab-initio calculations and an atomistic Wulff construction algorithm resulting in the crystal shape with the minimum surface energy. For the functionalized NPs the interactions between gold atoms and chemically adsorbed functional groups change their shape. As a model polymer matrix we consider polyethylene of different molecular lengths, from the oligomer to unentangled Rouse like systems. The PE/Au interaction is parametrized via DFT calculations. By computing the different properties the concept of the interface, and the interphase as well, in polymer nanocomposites with metal NPs are critically examined. Results concerning polymer density profiles, bond order parameter, segmental and terminal dynamics show clearly that the size of the interface/interphase, depends on the actual property under study. In addition, the anchored polymeric chains change the behavior/properties, and especially the chain density profile and the dynamics, of the polymer chain at the vicinity of the Au NP.

Dielectric properties and thermal conductivity of epoxy resin composite modified by Zn/ZnO/Al2O3 core–shell particles

2018 ◽  
Vol 76 (8) ◽  
pp. 3957-3970 ◽  
Author(s):  
Yang Wang ◽  
Lingjie Zhu ◽  
Jun Zhou ◽  
Beibei Jia ◽  
Yingye Jiang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Dielectric Properties ◽  
Epoxy Resin ◽  
Resin Composite ◽  
Core Shell ◽  
Epoxy Resin Composite ◽  
Shell Particles

Effect of Constituent Core-sizes on Microstructure and Dielectric Properties of BaTiO3@(0.6Ba-TiO3-0.4BiAlO3) Core-Shell Material

2018 ◽  
Vol 33 (3) ◽  
pp. 589-597 ◽  
Author(s):  
Millicent Appiah ◽  
Hua Hao ◽  
Wenjin Chen ◽  
Cheng Chen ◽  
Zhonghua Yao ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Core Shell ◽  
Shell Material

scholarly journals Double-layer core/shell-structured nanoparticles in polyarylene ether nitrile-based nanocomposites as flexible dielectric materials

RSC Advances ◽  
2017 ◽  
Vol 7 (47) ◽  
pp. 29306-29311 ◽  
Author(s):  
Yong You ◽  
Weihua Han ◽  
Ling Tu ◽  
Yajie Wang ◽  
Renbo Wei ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Properties ◽  
Double Layer ◽  
Dielectric Materials ◽  
Core Shell ◽  
Energy Storage Density ◽  
Storage Density ◽  
Polyarylene Ether Nitrile

The surface of BaTiO3 was modified with CPEN and NH2-CuPc, and the obtained CPEN-f-BT@CuPc reinforced the performance of PEN. The fabricated PEN-based nanocomposite shows stable dielectric properties and energy storage density from RT to 160 °C.

Sign in / Sign up

Export Citation Format

Share Document