Related Experiment Video
Updated: Jan 26, 2026

An Experimental and Finite Element Protocol to Investigate the Transport of Neutral and Charged Solutes across Articular Cartilage
Published on: April 23, 2017
Charge Transport in LDPE Nanocomposites Part I-Experimental Approach
Anh T Hoang1, Love Pallon2, Dongming Liu3
1Division of High Voltage Engineering, Department of Materials and Manufacturing Technology, Chalmers University of Technology, Gothenburg SE-412 96, Sweden. anh.hoang@chalmers.se.
Abstract:
This work presents results of bulk conductivity and surface potential decay measurements on low-density polyethylene and its nanocomposites filled with uncoated MgO and Al₂O₃, with the aim to highlight the effect of the nanofillers on charge transport processes. Material samples at various filler contents, up to 9 wt %, were prepared in the form of thin films. The performed measurements show a significant impact of the nanofillers on reduction of material's direct current (dc) conductivity. The investigations thus focused on the nanocomposites having the lowest dc conductivity. Various mechanisms of charge generation and transport in solids, including space charge limited current, Poole-Frenkel effect and Schottky injection, were utilized for examining the experimental results. The mobilities of charge carriers were deduced from the measured surface potential decay characteristics and were found to be at least two times lower for the nanocomposites. The temperature dependencies of the mobilities were compared for different materials.
Related Concept Videos
Formal Charges
Facilitated Transport
Secondary Active Transport
Ions and Ionic Charges
Short-distance Transport of Resources
Atomic Radii and Effective Nuclear Charge

