Electromechanical behavior on thermoplastic with modified surface (frost effect)
We have studied the surface and bulk deformation of polystyrene layers charged and heated to glass transition temperature T g. Our layers have a modified surface obtained by ion bombardment. The experimental results lead to the conclusion that after charging and during heating, the surface charge produces an effect which, at room temperature, predominantly runs to surface energy with a consequent decreases of the surface tension. At temperatures near T g, deformation of the polystyrene layer prevails. We have proposed a molecular model for the frost-effect.
Key wordsSurface charge roughness surface tension polystyrene
Unable to display preview. Download preview PDF.
- 1.Nicoll FH (1964) RCA Rev 25:209Google Scholar
- 3.Bikerman JS (1958) Surface Chemistry Academic Press New York, p 450Google Scholar
- 8.Ulbert K CS Patent AO 215536Google Scholar
- 9.Biegen JF, Smythe RA (1968) SPIE O/E LASE’ 88 Symposium Jan 1968, Los AngelesGoogle Scholar
- 10.Hüttenbach J, Stamm M, Reiter G, Foster M (1990) Submitted to LangmuirGoogle Scholar
- 12.Lee TC (1974) Appl Optics 13:888Google Scholar
- 14.Sorm F (1982) Institute of Molecular Chemistry, Prague, private communicationGoogle Scholar
- 15.Stamm M (1990), in this proceedingsGoogle Scholar