Influence of pulp properties on the adsorption of cationic starch

摘要

In most cases,the molecules of a polyelectrolyte such as cationic starch cannot penetrate fiber pores.Therefore,their adsorption depends on the surface properties of fibers and fines.Research has shown that more cationic starch is adsorbed to hardwood than to softwood fibers.A comparison of the properties of both pulp types has determined that the charge on the fiber surface is the key property for the adsorption of cationic starch.