Jump to main content
Jump to site search

Issue 8, 2014
Previous Article Next Article

Self-constructed tree-shape high thermal conductivity nanosilver networks in epoxy

Author affiliations

Abstract

We report the formation of high aspect ratio nanoscale tree-shape silver networks in epoxy, at low temperatures (<150 °C) and atmospheric pressures, that are correlated to a ∼200 fold enhancement of thermal conductivity (κ) of the nanocomposite compared to the polymer matrix. The networks form through a three-step process comprising of self-assembly by diffusion limited aggregation of polyvinylpyrrolidone (PVP) coated nanoparticles, removal of PVP coating from the surface, and sintering of silver nanoparticles in high aspect ratio networked structures. Controlling self-assembly and sintering by carefully designed multistep temperature and time processing leads to κ of our silver nanocomposites that are up to 300% of the present state of the art polymer nanocomposites at similar volume fractions. Our investigation of the κ enhancements enabled by tree-shaped network nanocomposites provides a basis for the development of new polymer nanocomposites for thermal transport and storage applications.

Graphical abstract: Self-constructed tree-shape high thermal conductivity nanosilver networks in epoxy

Back to tab navigation

Supplementary files

Publication details

The article was received on 06 Dec 2013, accepted on 21 Jan 2014 and first published on 28 Jan 2014


Article type: Paper
DOI: 10.1039/C3NR06494H
Citation: Nanoscale, 2014,6, 4292-4296
  •   Request permissions

    Self-constructed tree-shape high thermal conductivity nanosilver networks in epoxy

    K. Pashayi, H. R. Fard, F. Lai, S. Iruvanti, J. Plawsky and T. Borca-Tasciuc, Nanoscale, 2014, 6, 4292
    DOI: 10.1039/C3NR06494H

Search articles by author

Spotlight

Advertisements