Article
  • The Decreased Preservative Effect Exhibited by Talc and TiO2 for Emulsion Systems Prepared with Polyoxyethytene Sulfactants
  • Kim JS, Yoon HS, Jung KS
  • Polyoxyethylene계 계면활성제를 이용한 유화계에 있어서 Talc와 TiO2에 의한 방부제의 효능 저하에 관하여
  • 김점식, 윤홍식, 정광수
Abstract
The decreased preservative effect by talc and TiO2 for emulsions obtained with polyoxyethylene surfactant was studied by various analytical methods and biological test. The preservative effect of methyl p-hydroxybenzoate was decreased by the addition of talc and TiO2 and this result was attributed to the adsorption of methyl p-hydroxybenzoate on them. Talc exhibited more decreased preservative effect than that of TiO2. The amount of the adsorption of methyl p-hydroxybenzoate by talc at 20℃ could be represented by the following equation; a=11.511C0.747.

Polyoxyethylene계 유화제를 이용한 유화계에 있어서 talc 및 TiO2에 의한 methyl p-hydroxy benzoate의 흡착과 그에 따른 방부력 감소를 여러 가지 분석 방법과 미생물 실험을 통하여 측정하였다. 이 유화계에 있어서 methy1 p-hydroxy benzoate는 talc 및 TiO2에 흡착되어 방부력이 감소함을 알 수 있었으며 방부력 저하에 미치는 영향은 TiO2보다 talc가 더 크고, talc에 의한 methyl p-hydroxy benzoate의 흡착량은 20℃에서 다음과 같은 식으로 나타낼 수 있었다. 즉 a=11.511C0.747

Keywords:

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1984; 8(5): 328-334

    Published online Oct 25, 1984

  • 10.7317/pk.
  • Received on Nov 30, -0001
  • Revised on Nov 30, -0001
  • Accepted on Nov 30, -0001

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