Dependence of the glass transition temperature of epoxy-diamine/aluminum 
systems with the coating thickness

G. H. RUBIOLO; F. SAAVEDRA; A. J. RONCAGLIA; S. N. GOYANES

Yucatan

Conferencia; International Conference on Science and Technology of Composite Materials COMAT 2003; 2003

Several studies carried out in the system (epoxy-diamine)-(aluminum) 
have shown that the chemical, physical and mechanical properties of the 
coating materials differ from those of the bulk as a function of the 
coating thickness. In these works it is argued that such a behavior 
corresponds to the formation of a thick interphase between the 
substrate and the bulk material. In a work presented in this Conference, we experimentally demonstrated that coatings in this system do not 
develop a thick interphase between the substrate and the bulk material. 
The aim of this work is to provide a simple model to explain why the 
properties of the coatings in the system (epoxy-diamine)-(aluminum) 
change with the thickness.