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Adhesion effects and performance of mass transfer equipment using teflon surfaces
Author(s) -
Ponter Anthony B.
Publication year - 1977
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760170712
Subject(s) - materials science , polytetrafluoroethylene , wetting , mass transfer , contact angle , adhesion , condensation , composite material , surface energy , distillation , heat transfer , chemical engineering , thermodynamics , chromatography , chemistry , physics , engineering
Contact angle data are reported for a number of pure and binary liquids residing on a polytetrafluoroethylene (PTFE) surface, measured under conditions simulating distillation, condensation or absorption. By comparing the wettability of such systems with the performance obtained under the same conditions for equipment employing PTFE heat or mass transfer surfaces, it is demonstrated that liquid‐solid adhesion plays a key role in determining the heat or mass transfer rates. It is further shown for a considerable number of industriallyimportant conditions that PTFE can give enhanced equipment performance over that obtained, using conventional high energy solid materials.