journal6 ›› 2010, Vol. 31 ›› Issue (2): 55-59.

• Physics and electronics • Previous Articles     Next Articles

Application of the Theory of Dispersion Forces to the Dewetting of Polymer Films


  1. (College of  Physics Science and Information Engineering,Jishou University,Jishou 416000,Hunan China)
  • Online:2010-03-25 Published:2012-04-18
  • About author:WU Li-hua (1974-),female,was born in Jishou city,lecturer of Jishou University;the major research area is condensed matter physics.
  • Supported by:

    Supported by the NSF of Hunan Province (09JJ6011);Scientific Research Fundation of Hunan Provincial Education Department (08A055)

Abstract: The theory of Dzyaloshinskii,Lifshitz,and Pitaevskii (DLP)  is applied to investigate the effects of dispersion forces in the dewetting of polymer films in the system of air,polymer,silicon oxide and silicon.The second derivate of the free energy,wavelength and growth rate are calculated.The results show that the coating can modulate the wettability of its substrate and the retarded effects can be significant sometimes.They should be taken into account to deal with the dewetting instability of the polymer films.

Key words: dispersion forces, dewetting, retarded effects, wavelength, growth rate

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