液-液分散の安定性に及ぼす高分子安定剤と電解質の効果

概要

論文の詳細を見る
The effects of a polymeric stabilizer (Polyvinyl alcohol, PVA) and inorganic electrolytes (NaCl, HCl) on the stability of a liquid-liquid dispersion were studied to determine to what degree these chemicals contribute to dispersion stability. The sedimentation potentials and separation rates of styrene monomer droplets were measured in solutions of various concentrations of polyvinyl alcohol (PVA) and electrolyte so as to estimate dispersion stability. Dispersion stability increased with stabilizer concentration. Stability due to the polymeric stabilizer was enhanced between pH=4 and pH=9 with the addition of an inorganic electrolyte. The degree to which the polymeric stabilizer and electrolyte enhance dispersion stability is discussed on the basis of electric double layer and adsorbed polymeric layer theories.
社団法人日本油化学会の論文