Premium
Formation of films by drying of latex
Author(s) -
Sheetz D. P.
Publication year - 1965
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.1965.070091123
Subject(s) - materials science , composite material , polymer science , chemical engineering , engineering
A new theory to help explain the mechanism of latex film formation is advanced. The essential features of this theory are that: (1) the major energy source for film formation is the heat of the surroundings; this heat is converted to useful (film‐forming) work by evaporation of the water; the incipient and nascent film is the engine; (2) an important mechanism whereby evaporation of the water does useful work is by diffusion of water through the polymer particles themselves. The contributions of capillarity and wet sintering to the film forming process are analyzed and are found to be of greatest importance during the first half or so of the particle coalescence process. Experimental evidence supporting the above picture is presented.