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SEM studies of surfactant‐assisted micro‐mixing of melamine and wax particles
Author(s) -
Karakatsanis Ekaterini,
Focke Walter W.,
Summers Gabriel J.
Publication year - 2005
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.22873
Subject(s) - wax , mixing (physics) , pulmonary surfactant , melamine , materials science , dispersant , chemical engineering , dispersion (optics) , polymer chemistry , melamine resin , chemistry , composite material , coating , physics , optics , quantum mechanics , engineering
The validity of the micro‐mixing phenomenon was investigated by mixing a melamine dispersion, stabilized by low molecular mass poly(acrylic acid) (∼5000 Daltons) and a wax emulsion, stabilized by an ethoxylated alkyl phenol surfactant. The wax particles were observed to be attached to the melamine surface because of the interaction between the poly(acrylic acid) dispersant and the ethoxylate group of the wax surfactant, resulting in the sedimentation of mixed particles. This phenomenon has potential application in the mixing of solid particles that require intimate contact and homogeneous mixing. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 99: 2554–2557, 2006