Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Emulsion Stability of Low Viscosity W/O Emulsion and Application of Inorganic Sunscreen Agents

저점도 W/O 에멀젼의 유화 안정성 증진 및 무기 자외선 차단제의 적용

  • 연제영 ((주)잇츠한불 종합연구원 제3연구실) ;
  • 서정민 ((주)잇츠한불 종합연구원 제3연구실) ;
  • 김태훈 ((주)잇츠한불 종합연구원 제3연구실) ;
  • 심재곤 ((주)잇츠한불 종합연구원 제3연구실)
  • Received : 2018.08.15
  • Accepted : 2018.09.27
  • Published : 2018.09.30
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Abstract

In this study, we tried the various experiments using the emulsifier, electrolyte, stabilizer and gelling agent in order to improve a stability of low viscosity W/O emulsion. As a result, when we used polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate as a main emulsifier, PEG-30 dipolyhydroxystearate and cetyl PEG/PPG-10/1 dimethicone as a co-emulsifier for stable emulsification system, 0.5 % sodium chloride as an electrolyte, 1 % distearyldimonium chloride as a stabilizer, 0.5 % glyceryl behenate/eicosadioate as an oil gelling agent, emulsion particle is the best. Also, we got the stable and low viscosity W/O emulsion maintained at a constant viscosity at 2,000 cps or less. In addition, we were able to examine the possibility of development of low viscosity fluids type sunscreens with excellent feeling and stability through the application of inorganic sunscreen agents.

W/O 에멀젼; 안정성; 유화제본 연구에서는 일반적으로 O/W 에멀젼에 비해 안정화가 어려운 W/O 에멀젼, 특히 유동성이 높은 저점도 W/O 에멀젼의 안정성 증진을 위하여 유화제, 전해질, 유화 안정화제, 겔화제 등을 적용한 다양한 실험을 수행하여 보았다. 그 결과 이번 실험에서는 Polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate를 주 유화제로 하면서 PEG-30 dipolyhydroxystearate와 Cetyl PEG/PPG-10/1 dimethicone을 보조 유화제로 하는 유화 체계에, 전해질로 Sodium chloride를 0.5 %, 유화 안정화제로 Distearyldimonium chloride를 1 %, 유상 겔화제로 Glyceryl behenate/eicosadioate를 0.5 % 적용한 유화 입자도 작고 조밀하며 점도도 2,000 cps 이하로 일정하게 유지되는 안정한 저점도 W/O 에멀젼을 제조할 수가 있었다. 또한 상기와 같은 에멀젼 베이스에 무기 자외선 차단성분의 적용 실험을 통하여 안정성이 우수한 저점도 플루이드형 자외선 차단제품의 개발 가능성도 긍정적으로 검토할 수가 있었다.

Keywords

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