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Temperature dependence of contact angles on elastomers
Author(s) -
Budziak C. J.,
VarghaButler E. I.,
Neumann A. W.
Publication year - 1991
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1991.070420720
Subject(s) - contact angle , materials science , elastomer , natural rubber , atmospheric temperature range , composite material , dispersion (optics) , range (aeronautics) , thermodynamics , optics , physics
Contact angle measurements with three different liquids were performed on: (i) butyl rubber PB 101‐3 (Polysar Ltd.) and (ii) Dow Corning 236 dispersion. Contact angles were measured at different temperatures within the range from 23°C (room temperature) to 120°C. The surface tensions, γ sv , of the polymeric coatings at each temperature were calculated from the contact angles. The temperature coefficients of the surface tensions, d γ sv / dT , i.e., the surface entropies, were established for the temperature range covered.