Paper PVAC dispersion

PVAc-dispersion with plasticizer, adhesive for laminating textile/textile and textile/paper, filling agent for textile finishing. 

PVAC dispersions continue to be used for paper as consolidants (Wachter, 1987) and adhesives, especially the VAE copolymers (Maynor and van der Reyden, 1989 Scheper, 2005). 

The determination of adsorption isotherms at liquid-solid interfaces involves a mass balance on the amount of polymer added to the dispersion, which requires the separation of the liquid phase from the particle phase. Centrifugation is often used for this separation, under the assumption that the adsorption-desorption equilibrium does not change during this process. Serum replacement (6) allows the separation of the liquid phase without assumptions as to the configuration of the adsorbed polymer molecules. This method has been used to determine the adsorption isotherms of anionic and nonionic emulsifiers on various types of latex particles (7,8). This paper describes the adsorption of fully and partially hydrolyzed PVA on different-size PS latex particles. PS latex was chosen over polyvinyl acetate (PVAc) latex because of its well-characterized surface PVAc latexes will be studied later. 

Uses Surfactant, emulsifier, pigment wetting agent/dispersant, color acceptance agent for industrial coating systems, esp. latex paints, and for solvent-borne architectural paints, printing inks, adhesives, latexes food pkg. adhesives defoamer in food-contact paper coatings Features Low-foam remedies defoamer-induced film defects suitable for PVAc, acrylics, S/B, PVC/PVdC, alkyds, HC resins, NC, PU, epoxy, polyesters... 

Uses Emulsifier, pigment dispersant, degreaser, lubricant for paper, textiles, agric. and lubricant applies. vise, and emulsion stabilizer of PVAc and water-based paints Regulatory EPA exempt... 

Uses Plasticizer, solvent for PVC, PVAc, PVB, PS, cellulosics, paints vehicle for pigment dispersions in food-pkg. adhesives food pkg. adhesives, coatings, paper, cellophane, rubber articles, textiles Regulatory FDA 21CFR 175.105,177,1200 Manuf./Distrib. Akdeniz KImya Aldrich Allchem Ind. Boehme Filatex ... 

Uses Used in oil-sol. emulsifiers and detergents dispersant as chem. intermediate for mfg. of lubricants, antlstats, and other surfactants plasticizer and antlstat for PVAc freeze/thaw stabilizer for latex emulsions corrosion inhibitor for small motor engine oils food-pkg. adhesives, paper, polymers Features Alkali and acid stability... 

---