Mutual Coagulation of Polymer Particles and Quartz or Polyvinylidene Chloride Plates in Liquids

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  • 液体中での石英及びポリ塩化ビニリデン板とポリマー粒子の相互凝集
  • エキタイチュウ デ ノ セキエイ オヨビ ポリ エンカ ビニリデンバン ト ポ

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Mutual coagulation of substrates and particles has been investigated in various liquids. Spherical polyethylene or nylon 12 particles and polyvinylidene chloride or quartz substrates were used. The number of particles adhering to a substrate as a measure of mutual coagulation was small in n-alcohols, whereas large in n-alkanes, carbon tetrachloride and water. Mutual coagulation decreased with increasing ethanol concentration in ethanol/water mixtures. The experimental results were not explained on the basis of the heterocoagulation theory, suggesting that the polar interaction affected mutual coagulation. The results are discussed from the standpoint of liquid dielectric constants as a measure of polarity. Mutual coagulation in the present systems was found to occur hardly in the liquids whose relative dielectric constants ranged from 20 to 60.

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