Viscosity effect on epoxy–diamine/metal interphases

Epoxy–amine/metal interphases: Influences from sharp needle-like crystal formation

“…IPDA reacted with the aluminum and crystallized), for example their melting point. Finally, we correlated the results to the change of mechanical properties observed by many authors [5,6,[9][10][11][12][13][14][15][16].…”

“…Furthermore, when the solubility is exceeded and the complex geometry makes their crystallization possible, organo-metallic complexes may crystallize. These crystals induce changes of mechanical properties (effective Young's modulus, residual stresses, practical adhesion, durability [9][10][11][12][13][14][15][16]). Some studies report the influence of the metallic substrate nature on the coatingsubstrate adhesion [17], but the interphase formation depends on many other parameters, such as hardener nature, curing cycle, viscosity of the prepolymer mixture.…”

Is gold always chemically passive?

“…These crystals induce changes of mechanical properties (effective Young's modulus, residual stresses, practical adhesion, durability [15][16][17][18][19][20][21][22][23] . .…”

“….). The interphase formation depends on many parameters, such as hardener nature, curing cycle, viscosity of the prepolymer mixture [15,[17][18][19].…”

“…The modified DETA never crystallizes, even after 3 h in contact with aluminium. The parameters determining the interphase formation were evaluated, and correlated to the change of mechanical properties observed by many authors [9,10,[15][16][17][18][19]21,[24][25][26].…”