Oil in water 티타늄디옥사이드 자외선 차단제형의 pH 의존적 자외선 차단력 변화 연구

국문 초록 (Abstract)

본 연구는 티타늄디옥사이드만을 사용한 O/W 무기 자외선 차단제형에서 pH
에 따른 SPF (Sun Protection Factor), 투명도 차이에 관한 확인을 수행하였
다.
자외선은 각종 피부질환의 원인이다. 환경오염 등으로 인한 오존층의 파괴로
지표면에 도달하는 자외선의 양이 늘어남에 따라, 자외선차단제품의 수요는
세계적으로 늘어나는 추세다. 2021년부터 하와이주를 시작으로 산호초 보호를
위한 환경적인 면에서 유기 자외선 차단성분들의 규제가 심화 되면서 무기 자
외선 차단제형의 더 높은 SPF, 투명도 효과를 연구하는 것은 중요하다고 할
수 있다.
실험은 화장품에 사용되는 시중 원료들을 사용하여 화장품 규정에 맞게 pH
5.5(±0.5)~8.5(±0.5) 구간에서 실험하였다. pH 조절만으로 SPF, 투명도 차이가
있다는 결과를 얻었고 이는 분산력과 연관성이 있음을 확인하였다.
더 많은 연구가 필요하겠지만 무기 자외선 차단제형에서 pH 영향을 고려한
다면 더 나은 자외선 차단제품을 만들 수 있는데 이바지할 수 있을 것이라 예
상된다.

다국어 초록 (Multilingual Abstract)

This study investigated the changes in SPF (Sun Protection Factor),
transparency according to pH in O/W inorganic sunblock formulation using
only titanium dioxide.
Ultraviolet(UV) rays cause various skin diseases. Demand for development
of effective sunscreen products is increasing worldwide as the amount of
UV rays reaching the surface increases due to the air pollution-induced
destruction of the ozone layer. After the regulation of organic UV filter to
protect coral reefs, which began in Hawaii in 2021 for environmental
protection, high SPF value and transparency studies of inorganic UV filter
became an important.
The experiment was conducted using commercial raw materials used in
cosmetics in the pH 5.5(±0.5)~8.5(±0.5) range in accordance with the
cosmetics regulation. The result of the changes in SPF and transparency
at each pH was obtained, and these results were correlated with
dispersibility.
More research will be needed, but considering the pH impact of inorganic
sunscreen types, it is expected to contribute to making better sunscreen
products

목차 (Table of Contents)

• Ⅰ. 서 론 ················································································································1
• 1. 연구배경 및 목적 ·······························································································1
• 1.1 자외선과 자외선 차단제의 종류 ····································································1
• 1.2 자외선 차단제품의 시장 상황과 연구목적 ···················································4
• 2. 이론적 배경 ··········································································································5
• Ⅱ. 재료 및 연구방법 ····························································································6
• 1. 실험계획 ·················································································································6
• 2. 실험재료 ·················································································································6
• 3. 실험기기 ·················································································································7
• 4. 실험방법 ·················································································································8
• 4.1 점증제조절과 유화제별 자외선차단제형 제조 실험 ···································8
• 4.2 O/W TiO₂ 무기 자외선차단제형 pH 조절 실험 ······································8
• 4.3 TiO₂ 투입 전 O/W 에멀젼 pH별 유화안정도 비교 실험 ··················· 8
• Ⅲ. 실험 및 결과 ······································································································9
• 1. 유화제별 자외선차단제형 제조 실험 ·····················································9
• 2. 점증제조절과 유화제별 자외선차단제형 제조 실험 ·························11
• 3. O/W TiO₂ 무기 자외선차단제형 pH 조절 실험 ····························13
• 4. TiO₂ 투입 전 O/W 에멀젼의 pH별 안정도 비교 실험 ················20
• 5. TiO₂ 비교 실험 ····················································································25
• 6. O/W TiO₂ 무기 자외선차단제형의 분산성 비교 ···························31
• 6.1 투명도 비교 ······································································································31
• 6.2 현미경관찰 ·········································································································32
• 6.3 입도분석 ············································································································33
• Ⅳ. 결론 ·······················································································································38
• 참고문헌 또는 인용 문헌 ····························································································39
• 국문초록 ··························································································································43
• 감사의 글 ························································································································44