Latex deposition on fibers: Effect of electrolytes on rate and interaction energy

Abstract

The rate of deposition of anionic polymethyl methacrylate latex on polyamide, polyester, and polyacrylonitrile fabrics and its relation to the interaction energy were investigated as a function of electrolyte concentration. With increasing the concentration of electrolytes, the total interaction energy between latex particles and fabrics decreased and the rates of deposition on polyamide and polyester fabrics increased. The rates of deposition on polyacrylonitrile fabric were constant above a certain concentration of electolytes. The rate constants of deposition on polyacrylonitrile fabric were constant below a certain value of the estimated maximum total interaction energy ( V Tmax) as a function of the separation distance between latex particles and fabric and decreased with further increasing V Tmax. The rate constants on polyamide fabric and polyester fabric decreased gradually with increasing V Tmax, however, latex particles deposited in spite of large values estimated for V Tmax. At the same value of V Tmax with respect to the three kinds of fabrics, the rate constants decreased in the order of polyacrylonitrile fabric, polyamide fabric, and polyester fabric.