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Coemulsion and electrodeposition properties of mixtures of cationic epoxy resin and cationic acrylic resin containing butoxymethylamide groups
Author(s) -
Yang ChinPing,
Chen YahnHaur
Publication year - 1993
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.1993.070500310
Subject(s) - cationic polymerization , materials science , epoxy , copolymer , emulsion , fourier transform infrared spectroscopy , adhesive , polymer chemistry , acrylate , acrylic resin , chemical engineering , nuclear chemistry , composite material , chemistry , polymer , organic chemistry , coating , layer (electronics) , engineering
Butyl acrylate, styrene, N,N ‐dimethylaminoethylmethacrylate, and N‐(n ‐butoxymethyl) acrylamide were copolymerized to prepare a cationic acrylic copolymer ( I ) containing butoxymethylamide groups. This copolymer can be mixed with an epoxy‐amine adduct ( II ), acetic acid, and deionized ( D.I .) water to form a coemulsion containing two cationic resins. The electrophoretic codeposition of the coemulsion and physical and chemical properties of the deposited film were investigated. The resin composition of film deposited from coemulsion was determined by Fourier transform Infrared (FTIR) quantitative analysis to study the coemulsion and electrophoretic codeposition behavior. The applicability of this two‐component coemulsion in primer‐surfacer (pricer) electrodeposition paint was also discussed. The results indicate that at any coemulsion resin composition the resin composition of electrodeposited film is almost equal to the coemulsion resin composition. The throwing power of emulsion increases with increasing applied voltage, as expected. However, the throwing power of coemulsion is almost equal to that of the II emulsion but greater than that of the I emulsion. Furthermore, all cured films derived from mixtures of I/II show excellent adhesive strength, good hardness, and high levels of salt spray resistance. © 1993 John Wiley & Sons, Inc.