有機変性粘土鉱物を用いた乳化物の調製および化粧品への応用(<シンポジウム特集>女性研究者が拓く粘土科学)

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タイトル別名
  • Preparation of Emulsions with Organoclay and the Application for Cosmetic Products
  • 有機変性粘土鉱物を用いた乳化物の調製および化粧品への応用
  • ユウキ ヘンセイ ネンド コウブツ オ モチイタ ニュウカブツ ノ チョウセイ オヨビ ケショウヒン エ ノ オウヨウ

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Organoclay/non-ionic surfactant compound is known to make a rigid oil-gel with non-polar oils. The mechanism of forming oil-gel was investigated. Oil-gel viscosity was revealed to be influenced by the amount of surfactant adsorbed to organoclay, which controled the aggregation level of the clay particles. Stable oil-in-water-in-oil type multiple emulsion was obtained by adding adequate amount of oil-in-water emulsion to the oil-gel. Without organoclay, no stable O/W/0 type multiple emulsion was prepared even though much amount of lipophilic surfactant was added. Organoclay adsorbed to the interface of outer oil/water phase was considered to prevent transfer of inner oil to the outer oil phase. About 60% of Vitamin A alcohol (retinol) encapsulated in the inner oil phase of this 0/W/0 emulsion was remained whereas only 32% in the oil phase of 0/W emulsion after keeping them for 1 month at 50℃.

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  • 粘土科学

    粘土科学 52 (3), 100-103, 2014

    一般社団法人 日本粘土学会

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