Synthesis of Transparent and Oil-Dispersible Planar Titania
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- NAKAMURA Takashi
- Noevir Co., Ltd., Shiga Central Research Laboratory
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- MURAKAMI Yasushi
- Department of Fine Materials Engineering, Faculty of Textile Science and Technology, Shinshu University
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- TAKASU Yoshio
- Department of Fine Materials Engineering, Faculty of Textile Science and Technology, Shinshu University
Bibliographic Information
- Other Title
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- オイル分散型薄片状透明酸化チタンの合成
- オイル分散型簿片状透明酸化チタンの合成
- オイル ブンサンガタボヘンジョウ トウメイ サンカ チタン ノ ゴウセイ
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Description
A new oil-dispersible planar titania (OD-TiO) with a lateral size in the range of O. 5 to 200/1 n was synthesized by the catalytic sol-gel process in oil phase. Titanium tetraethoxide was pretreated with isostearic acid to be dispersed in oil phase before the reaction. Sodium stearate was used as a catalyst for the titania formation in oil phase. The formation reaction proceeded very slowly without any catalyst because only a little amount of water, as another reactant, was included in the oil. OD-TiO exhibited both a high transparency and a high absorbance of UVB. The sun protection facter (SPF) of the dispersion of OD-Ti0 (30 wt%) in oil was 16, in spite of the high transparency. The UV protection ability was enhanced when commercially available fine TiO2 particle was added. The safety of OD-TiO was confirmed to be at the same level of the surface-coated fine Ti02 particle by a biological test.
Journal
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- Journal of the Japan Society of Colour Material
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Journal of the Japan Society of Colour Material 72 (12), 760-764, 1999
Japan Society of Colour Material
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Details 詳細情報について
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- CRID
- 1390282680446793472
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- NII Article ID
- 10007155311
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- NII Book ID
- AN00354634
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- COI
- 1:CAS:528:DC%2BD3cXnsVymtw%3D%3D
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- NDL BIB ID
- 4933143
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- ISSN
- 0010180X
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed