Surface Treatment

  • M. Brugnara
  • C. Della Volpe
  • D. Maniglio
  • S. Siboni


The aim of this paper is to give a correct interpretation to contact angles values that are obtained on porous surfaces by applying different methods. First a brief description of the physical meaning of the contact angle value is given, then a new methodology for the contact angle analysis by using the Wilhelmy balance is presented. Finally some limitations in the use of the Washburn’s equation are shown.


Contact Angle Effective Porosity Equivalent Radius Liquid Absorption Equilibrium Contact Angle 
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Copyright information

© Springer 2006

Authors and Affiliations

  • M. Brugnara
    • 1
  • C. Della Volpe
    • 1
  • D. Maniglio
    • 1
  • S. Siboni
    • 1
  1. 1.Dept. of Engineering Materials and Industrial TechnologiesUniversity of TrentoTrentoItaly

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