Deakin Research

Institute for Frontier Materials

Nanocomposites

Introduction

Nanocomposites are formed by integrating nanomaterials into organic polymers. Properties shown to undergo substantial improvements, in comparison with the base polymer as well as conventional filler counterparts, include:

  • Mechanical properties (e.g. strength, modulus and dimensional stability)
  • Permeability (decreased) to gases, water and hydrocarbons
  • Thermal stability and heat distortion temperature
  • Flame retardancy and reduced smoke emissions
  • Chemical resistance
  • Surface appearance
  • Electrical and thermal conductivity
  • Moisture response
  • Drug controlled release
  • Environmentally friendly disposal
  • Optical clarity in comparison to conventionally filled polymers

We are investigating a wide range of nanocomposites with a variety of nanoparticles, nanotubes and nanofibres for optical, electronic and structural applications.

Capabilities

  • Master-batch production
  • Filament/fibre extrusion
  • Film forming
  • Mechanical testing
  • Optical testing
  • Thermal testing
  • Structural study

Project examples

Refractive index modified optical nanocomposites

Uniform dispersion of nanoparticles in organic materials enables modification of the overall refractive index of the nanocomposites in the range between the indices of nanoparticle and organic materials. Such hybrid materials have been attracting much attention as novel refractive index engineering materials for a wide range of optical applications including planar-gradient index lenses, reflectors, opticalwave guides, optical adhesives, anti-reflection films, holographic information storage devices and optical coupling materials. In this project, we investigate the methods to produce highly transparent high-refractive index nanocomposite systems

Transmittance values at 550 nm and refractive index of nanoparticle suspensions in an organic matrix as a function of volume fraction of nanoparticles
Transmittance values at 550 nm and refractive index of nanoparticle suspensions in an organic matrix as a function of volume fraction of nanoparticles

Some key papers

  • T. Tsuzuki, "Abnormal transmittance of Refractive-Index Modified ZnO - Organic Hybrid Films", Macromolecular Materials and Engineering, 293, [2], (2008) 109-113
  • T. Tsuzuki, "Abnormally High Optical Transmittance of Refractive-Index Modified ZnO / Organic Hybrid Films", IEEE Proceedings of the 2008 Conference on Optoelectronic and Microelectronic Materials and Devices, 27 July - 1 August, Sydney, Australia, pp. 205-208
  • A. V. Zvyagin, D. Silva, S. A. Alexandrov, T. R. Hillman, J. J. Armstrong, T. Tsuzuki, D.D. Sampson, "Refractive index tomography of turbid media by bifocal optical coherence refractometry", Opics Express, 11, [25], (2003), 3503-3517

Deakin University acknowledges the traditional land owners of present campus sites.

19th February 2012