Adaptive speckle imaging interferometry (ASII): New technology for advanced drying analysis of coatings

In this work a new optical technology, ASII, is presented, for the study of film formation from all kinds of dispersed systems, such as latexes, emulsions or solvent-borne suspensions. Various film-forming products have been investigated, including water-borne coatings, on various types of substrates. A wide range of information can be extracted such as objective drying times (dust-free, dry-hard times, etc) or mechanism taking place, thereby offering new possibilities to analyse film formation from complex colloidal systems.