櫛形高分子の分散作用に及ぼす無機電解質の影響

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This paper discusses the influences of various types of inorganic salts on the fluidity of inorganic particle suspensions with comb-type polymer. By addition of anion which form insoluble salt with Ca^<2+> the fluidity of suspension with polymer and the amounts of polymer adsorbed on CaCO_3 were remarkably reduced. It is thought that the adsorption of polymer is related to the concentration of Ca^<2+> in the liquid phase. When the concentration of Ca^<2+> in the liquid phase is reduced, the adsorbed amount of Ca^<2+> on the surface of CaCO_3 decreases. By addition of soluble Ca salts or CaO, the fluidity of suspension with polymer and inorganic electrolytes containing anions which form insoluble salt with Ca^<2+> could be greatly improved, up to almost the same value of a suspension without inorganic electrolytes. This is because almost all the anions precipitated as insoluble Ca salts or the concentraion of Ca^<2+> or cations such as Al^<3+> in the liquid phase increased and, as a result, the adsorption site of polymer increased.
社団法人日本セラミックス協会の論文
2000-10-01