Ionic Character and Alkyl Chain Length of Surfactants Affect Titanium Dioxide Dispersion and Its UV-Blocking Efficacy

The dispersion of titanium dioxide (TiO[sub.2]) determines the performance of TiO[sub.2]-based formulations in cosmetic and coating applications. In particular, the chemical and structural characteristics of the surfactants used to prepare TiO[sub.2] dispersions are significant. However, the influen...

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Bibliographic Details
Published in:Applied sciences 2024-12, Vol.14 (23), p.11035
Main Authors: Mun, Jaehun, Jeon, Yeji, Jeong, Suhui, Lim, Jeong Min, Kim, Yeojin, Myeong, Hwain, Han, Jeongwoo, Choi, Youngwoo, Jo, Seong-Min, Yang, Seung Yun, An, Beum-Soo, Hwang, Dae Youn, Seo, Sungbaek
Format: Article
Language:English
Subjects:
Adsorption
Aqueous solutions
Cosmetics
dispersion
Fatty acids
Skin
Sodium
Surface active agents
surfactant
Surfactants
Titanium
Titanium dioxide
UV protection
Viscosity
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Summary:The dispersion of titanium dioxide (TiO[sub.2]) determines the performance of TiO[sub.2]-based formulations in cosmetic and coating applications. In particular, the chemical and structural characteristics of the surfactants used to prepare TiO[sub.2] dispersions are significant. However, the influence of surfactants on TiO[sub.2] dispersion quality has not been systematically investigated. In this study, we observed the effects of the ionic character of commercial surfactants on the dispersion stability and UV-blocking efficacy of TiO[sub.2]. Among the experimental surfactant groups, anionic sodium dodecyl sulfate was efficient in stabilizing TiO[sub.2] as a water-in-oil formulation and enhancing its UV-blocking efficacy. Furthermore, an anionic fatty acid as a surfactant with a longer alkyl chain length was sufficient to stabilize the TiO[sub.2] formulation, which also displayed the highest UV-blocking efficacy, comparable to the values of commercial TiO[sub.2]-based cosmetic products.
ISSN:2076-3417
2076-3417
DOI:10.3390/app142311035