固体粒子汚れの洗浄に関する研究 (第4報)

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書誌事項

タイトル別名
  • Studies on the Removal of Particulate Soil. IV.
  • コタイ リュウシ ヨゴレ ノ センジョウ ニ カンスル ケンキュウ 4 スチレ
  • Effects of the Copolymerization Ratio and the Polymerization Degree of Sodium Styrenesulfonate-Sodium Methacrylate Copolymers
  • スチレンスルホン酸ナトリウム-メタクリル酸ナトリウム共重合化合物の共重合比と重合度の影響

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抄録

A study of the effects of the copolymerization ratio and polymerization degree of sodium styrenesulfonate-sodium methacrylate copolymers, P (NaSS-NaMAA), on the removal efficiency and redeposition of Fe2O3 particulate soil in hard water, at pH 10, 30°C, to obtain a phosphate builder substitute was carried out. <BR>The ζ-potentials of Fe2O3 particles from soiled nylon fabric in washing liquor were measured by microelectrophoresis to investigate the electric potential effects of the builder on particulate soil removal. <BR>Removal efficiency and redeposition of particles were found to be influenced more by electrokinetic phenomena than chelating action under alkaline washing conditions such as dilute concentration of P (NaSS-NaMAA), 50100 ppm water hardness. Thus P (NaSS-NaMAA), a multivalent polyelectrolyte, removes soil primarily through electric and steric barrier effects. The polymerization degree of P (NaSS-NaMAA) noted to be a more important factor than the copolymerization ratio. The optimum P (Nass-MaAA) having the copolymerization ratio of 3 : 7, and a molecular weight of 1.5×104, showed a builder effects far superior to STP in solution containing a surfactant such as DBS or APE.

収録刊行物

  • 油化学

    油化学 36 (5), 349-354, 1987

    公益社団法人 日本油化学会

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