Weatherability of hybrid organic-inorganic silica protective coatings on glass. Progress in Organic Coatings

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F15%3A43900747" target="_blank" >RIV/60461373:22310/15:43900747 - isvavai.cz</a>

Result on the web

<a href="http://www.sciencedirect.com/science/article/pii/S0300944015300448" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0300944015300448</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.porgcoat.2015.07.001" target="_blank" >10.1016/j.porgcoat.2015.07.001</a>

Result language

angličtina

Original language name

Weatherability of hybrid organic-inorganic silica protective coatings on glass. Progress in Organic Coatings

Original language description

Currently, there is a growing interest in the application of silicon-based technologies for the development of advanced hybrid organic-inorganic coatings with strong weatherability. In this study, the sol-gel process is used to prepare such coatings on glass and their resistance to weathering effects is assessed afterwards. Various sols were prepared by mixing a silica-based inorganic matrix (tetraethyl orthosilicate) with different quantities of silica alkoxides functionalised with various organic groups. Subsequently, the sols were dip-coated onto glass samples at low temperatures without any heat treatment. The coatings prepared were analysed before and after three model ageing tests simulating various weathering parameters. After ageing, the best performing coatings showed good overall homogeneity and transparency (optical microscopy, SEM), improved water repellency and adhesion to the glass substrate (static contact angle measurements, cross-cut tape tests) and no colour or chemical composition changes (UV-VIS, FTIR). Compared with commercial hybrid silica products, the alkyl- and methacryloxy-functionalised silica coatings particularly displayed improved homogeneity, elasticity and barrier properties. Thus, these low temperature coatings, easily applicable to thin films, appear to fulfil the main requirements for the protection of the glass exposed to weathering phenomena.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JK - Corrosion and material surfaces

OECD FORD branch

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Project

<a href="/en/project/DF12P01OVV017" target="_blank" >DF12P01OVV017: Technology of maintenance and conservation of the Last Judgment mosaic and methods of medieval and archaeological glass conservation.</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Progress in Organic Coating

ISSN

0300-9440

e-ISSN

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Volume of the periodical

88

Issue of the periodical within the volume

November 2015

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

172-180

UT code for WoS article

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EID of the result in the Scopus database

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