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Enhanced Solar Reflectance and Superhydrophobic Properties of Functionalized Silica-Coated Copper Phthalocyanine Pigments by the Sol-Gel Process
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Document Title
Enhanced Solar Reflectance and Superhydrophobic Properties of Functionalized Silica-Coated Copper Phthalocyanine Pigments by the Sol-Gel Process
Author
Chobpattana V, Khemthong N, Ngok-Ngam W, Leelawattanachai J, Sodsai T, Kumnorkaew P, Muangnapoh T, Muangnapoh K
Name from Authors Collection
Scopus Author ID
35189277200
Affiliations
Rajamangala University of Technology Thanyaburi; National Science & Technology Development Agency - Thailand; National Nanotechnology Center (NANOTEC); National Science & Technology Development Agency - Thailand; National Metal & Materials Technology Center (MTEC)
Type
Article
Source Title
ACS OMEGA
ISSN
2470-1343
Year
2021
Volume
6
Issue
43
Page
28671-28677
Open Access
gold, Green Published
Publisher
AMER CHEMICAL SOC
DOI
10.1021/acsomega.1c03333
Format
Abstract
This research studies the physical, superhydrophobic, and optical properties of functionalized silica-coated copper phthalocyanine (CuPc) pigments. The silica coating was confirmed by the size increase and the atomic ratio of silicon and copper of the coated pigments. Under optimal conditions, the green and blue shades of the pigments were enhanced as indicated by the increase in solar reflectance at 450-540 nm for the CuPc green and 380-520 nm for the CuPc blue. The total near-infrared (NIR) reflectance of the CuPc green and blue also increases by 10.6 and 11.5% compared to the uncoated pigments, respectively. The functionalized silica layer also adds a superhydrophobic property to the pigments. The contact angles of the functionalized pigments with water and oil are 154.4 and 54.3 degrees for the CuPc green pigment and 142.9 and 78.1 degrees for the CuPc blue pigment, respectively. The improved optical and hydrophobic properties make the pigment suitable for outdoor applications as an advanced protection layer to slow down material degradations from heat and humidity.
Funding Sponsor
Rajamangala University of Technology Thanyaburi (RMUTT) research foundation scholarship [DRF64D0701]; National Metal and Material Technology Center, Thailand Research Fund
License
CC-BY-NC-ND
Rights
Authors
Publication Source
WOS