Turbidity study of the process of film formation of thin films of aqueous acrylic dispersions

The Film Formation of Polymer Particles in Drying Thin Films of Aqueous Acrylic Latices

“…Much has been written about latex coalescence , including the excellent review by Winnik (7), but only in the last few years have some nondestructive techniques been developed to study the coalescence process of the latex particles during the drying process, e.g., scanning laser acoustic microscopy (SLAM) (24,25), dielectric spectroscopy (26,27), turbidity (1,2,7,28,29), and fluorescence techniques (7,(30)(31)(32)(33)(34)(35)(36)(37)(38). This paper gives a short review of the wet sintering theory and how the turbidity measurements can support this theory.…”

“…1). The first four stages describe the process of flocculation and coalescence and the last 1 To whom correspondence should be addressed. two stages that of autohesion.…”

“…The process of film formation of an acrylic latex film can be divided into six stages (1)(2)(3)(4)(5) (Fig. 1).…”

“…Examples of such experiments are shown in Figs. 2 to 6, where films of latex B4 are dried below and above their MFFT (for a characterization of latex B4 see Table I) (1,2). Figure 2-Water evaporates from the bulk, resulting in a decrease of the interparticle distance (stage I).…”

Latex Film Morphology and Electrical Potential Pattern Dependence on Serum Components: A Scanning Probe Microscopy Study

“…The slow disappearance of particle interfaces was described by van Tent and Nijenhuis (14), who made turbidity measurements and observed the changes in thin acrylic film interference during the drying and swelling processes. Butt et al (15) observed individual latex particles in a dry latex film with a minimum film formation temperature (MFFT) of 12…”