Solar Reflective Pigment of TiO2 Nanoparticle Coated on Mica and Thermal Property of its Isolation-Heat Paint

Hyun Jin Lee; Dae Sung Kim; Seung Ho Lee; Byung Ki Choi; Kwang Choong Kang

doi:10.4028/www.scientific.net/AMR.1105.117

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1105Solar Reflective Pigment of TiO2 Nanoparticle...

Solar Reflective Pigment of TiO₂ Nanoparticle Coated on Mica and Thermal Property of its Isolation-Heat Paint

Abstract:

TiO₂ coated mica (TiO₂/Mica) as solar reflective pigment was prepared under hydrothermal treatment. Dispersed TiO₂ nanosol, having an average particle size of about 25-30nm, was coated on mica flake by the difference between the surface charge of the particles at pH 2 and then calcined at 850°C to stabilize the coated layer on mica. The CIE color coordinate and total solar reflectance (TSR) properties of these pigments were investigated in relation to thickness variation of TiO₂layer coated on mica having various lateral sizes. Dense and uniform TiO₂ layers were tightly coated on the surfaces on mica substrates. Isolation-heat paints were prepared with 20wt% pigments fully dispersed in acryl-urethane resin and several additives to coat the film uniformly. Thermal property of these films, recorded by an isolation-heat measuring system, was observed for the relationship of TSR value according to the thickness of TiO₂layer and mica’s lateral size, compared to TiO₂ itself.

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Periodical:

Advanced Materials Research (Volume 1105)

Pages:

117-122

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1105.117

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Online since:

May 2015

Authors:

Hyun Jin Lee, Dae Sung Kim*, Seung Ho Lee, Byung Ki Choi, Kwang Choong Kang

Keywords:

Isolation-Heat Paint, Solar Reflective Pigment, Sol-Gel, Thermal Property, TiO₂ Coated Mica (TiO₂/Mica), TiO₂ Nanosol

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