Artículos de revistas
Characterization of drying paint coatings by dynamic speckle and holographic interferometry measurements
Fecha
2016-05Registro en:
Budini, Nicolas; Mulone, C.; Balducci, N.; Vincitorio, F. M.; López, A. J.; et al.; Characterization of drying paint coatings by dynamic speckle and holographic interferometry measurements; Optical Society of America; Applied Optics; 55; 17; 5-2016; 4706-4712
0003-6935
CONICET Digital
CONICET
Autor
Budini, Nicolas
Mulone, C.
Balducci, N.
Vincitorio, F. M.
López, A. J.
Ramil, A.
Resumen
In this work we implemented dynamic speckle and holographic interferometry techniques to characterize the drying process of solvent-based paint coatings. We propose a simple way to estimate drying time by measuring speckle activity and incrementally fitting experimental data through standard regression algorithms. This allowed us predicting drying time after about 20-30 min of paint application, which is fast regarding usual times required to reach the so-called tack-free state (≈ 2 h). In turn, we used holographic interferometry to map small thickness variations of the coating surface during drying. We also demonstrate that results obtained from both techniques correlate to each other, which allows improvingthe accuracy of the drying time estimation.