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An apparatus for the determination of the minimum film temperature of polymer emulsions
Author(s) -
Protzman Thomas F.,
Brown George L.
Publication year - 1960
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.1960.070041012
Subject(s) - bar (unit) , emulsion , thermocouple , materials science , polymer , composite material , reliability (semiconductor) , temperature gradient , analytical chemistry (journal) , chemical engineering , thermodynamics , chemistry , chromatography , physics , power (physics) , meteorology , engineering , quantum mechanics
An apparatus has been constructed for measurement of the minimum filming temperature (MFT) of a polymer emulsion. The apparatus consists of a metal bar along which a temperature gradient may be maintained. Recessed channels are provided in which emulsion samples are spread and allowed to dry. Eight thermocouple stations along the bar are connected to a continuous recorder. Following drying of the film, the minimum temperature at which a continuous film is formed is determined. Testing of the apparatus on one emulsion examined under a variety of conditions and on samples of varying composition has demonstrated the reliability, versatility, and utility of the apparatus.