Journal of the Japan Society of Colour Material

Original Research Paper

Preparation and Photocatalytic Activity under Visible Light Irradiation of Crystalline Mesoporous Titania Particles

Hirobumi SHIBATA, Taku OGURA, Hideki SAKAI, Mutsuyoshi MATSUMOTO, Masa ...

2008 Volume 81 Issue 7 Pages 235-239
Published: July 20, 2008
Released on J-STAGE: November 21, 2008

DOIhttps://doi.org/10.4011/shikizai.81.235

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Crystalline mesoporous titania particles were prepared and their photocatalytic activity under visible light irradiation was investigated. A novel method including a low-temperature crystallization technique of titania in the presence of cationic surfactants supplied mesoporous titania particles having crystalline walls. The obtained titania showed an absorption threshold drastically shifted to the longer wavelength side and a photocatalytic activity under visible light (>440 nm) irradiation.

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Applications of Numerical Analysis to the Evaluation of Antichipping Performance for Automotive Coatings

Hideyuki INABA

2008 Volume 81 Issue 7 Pages 240-251
Published: July 20, 2008
Released on J-STAGE: November 21, 2008

DOIhttps://doi.org/10.4011/shikizai.81.240

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Supplementary material

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For a design of coatings structure to enhance the antichipping ability of automotive coatings, analyses of crashworthy mechanism of coatings are important. We accomplished to analyze the time-course behavior of strain distribution and destruction of paint coatings by numerical analysis for multilayer coatings model, and confirmed the correspondence between the numerical calculation results and the experimental results of antichipping test. In consequence, the chipping phenomenon of paint coatings was understood as the progression of local destruction caused by impulse energy propagation and dispersion inside the paint coatings.

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Current Topics

Environmentally Friendly Lighting by White LEDs

Tsutomu ODAKI

2008 Volume 81 Issue 7 Pages 252-256
Published: July 20, 2008
Released on J-STAGE: November 21, 2008

DOIhttps://doi.org/10.4011/shikizai.81.252

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Serial Lecture

Adhesion from a Microscopic Viewpoint

Yoshihiro YAMAZAKI

2008 Volume 81 Issue 7 Pages 257-263
Published: July 20, 2008
Released on J-STAGE: November 21, 2008

DOIhttps://doi.org/10.4011/shikizai.81.257

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