INTEC   05402
INSTITUTO DE DESARROLLO TECNOLOGICO PARA LA INDUSTRIA QUIMICA
Unidad Ejecutora - UE
artículos
Título:
High Solid Acrylic–Melamine Latexes with Tunable Crosslinking Capability
Autor/es:
CÓRDOBA, CARLOS A.; GUGLIOTTA, LUIS M.; BARRIOS, CELINA E.; RONCO, LUDMILA I.; MINARI, ROQUE J.
Revista:
MACROMOLECULAR REACTION ENGINEERING
Editorial:
WILEY-V C H VERLAG GMBH
Referencias:
Año: 2019 vol. 13 p. 1 - 9
ISSN:
1862-832X
Resumen:
Miniemulsion polymerization is employed to produce high solid content (50%) acrylic/melamine latexes with varied crosslinking capability, for their potential application as waterborne crosslinkable coatings. This synthesis strategy allows the efficient incorporation of a hydrophobic crosslinker, iso-butylated melamine (iBMF), into polymer particles, and to obtain latexes with different iBMF concentrations and acrylic polymer with varied content of hydroxylic groups (OH?). The involved crosslinking mechanisms and the physical transformations during film thermosetting of acrylic/iBMF nanocomposite are exhaustively investigated by combining thermal, spectroscopic, and thermo-mechanical analyses. The influence of reactive groups concentration (iBMF and OH? content in the acrylic polymer) on the rate of curing, the crosslinking degree, and consequently onto the sensitive properties of cured films are discussed here.