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Long term stability of phase change nano-emulsions.

Author(s) : FUMOTO K., KAWAJI M., SCHALBART P., et al.

Summary

Phase-change emulsions are a novel type of heat storage material and heat transfer fluids. In particular, oil-in-water emulsions are latent heat storage materials that have low melting points. In this paper, the influences of the phase-change characteristics over the long term on nano-emulsion stability are investigated. The phase-change nano-emulsion is prepared by the phase inversion temperature method. The stability of emulsification of tetradecane with nonionic surfactants is confirmed for a droplet size distribution as a function of time. The droplet size of the nano-emulsion is measured by dynamic light scattering. The relationships between the phase-change characteristics and the stability of the emulsion are discussed in detail. The results reveal that the phase-change characteristics have a significant effect on the stability of the emulsion. Moreover, the surfactant concentration is found to contribute to the stability of the phase-change nano-emulsion.

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Pages: 2009-4

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Details

  • Original title: Long term stability of phase change nano-emulsions.
  • Record ID : 2009-1655
  • Languages: English
  • Source: 8th Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning
  • Publication date: 2009/06/03

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