Photoactive and hydrophobic nano-ZnO/poly(alkyl siloxane) coating for the protection of sandstone
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F19%3A00504193" target="_blank" >RIV/68145535:_____/19:00504193 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27360/19:10239586 RIV/61989100:27640/19:10239586 RIV/61989100:27740/19:10239586
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0950061818330265?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0950061818330265?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.conbuildmat.2018.12.045" target="_blank" >10.1016/j.conbuildmat.2018.12.045</a>
Alternative languages
Result language
angličtina
Original language name
Photoactive and hydrophobic nano-ZnO/poly(alkyl siloxane) coating for the protection of sandstone
Original language description
Poly(alkyl siloxane) containing photoactive nano-ZnO (0.5 wt%) has been studied as a protective coating of glauconitic sandstone. Effect on visual appearance, hydrophobicity, porosity, water absorption/evaporation, and self-cleaning ability of the sandstone was measured. The results were evaluated in comparison with uncoated and poly(alkyl siloxane)-coated sandstone. Static contact angle of water reached 89 degrees +/- 3 degrees and 128 degrees +/- 2 degrees for poly(alkyl siloxane) and nano-ZnO/poly(alkyl siloxane) coating, respectively. Poly(alkyl siloxane) and nano-ZnO/poly(alkyl siloxane) coatings led to increased reduction in water absorption (>50%) for similar to 18 h and similar to 8 h, respectively, compared to the uncoated sandstone. The shorter time is compensated by self-cleaning ability: photodegradation of methylene blue on the nano-ZnO/poly(alkyl siloxane) coating after 5 h of UV irradiation was observed. This coating is a promising candidate for practical use in sandstone monuments protection.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Construction and Building Materials
ISSN
0950-0618
e-ISSN
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Volume of the periodical
199
Issue of the periodical within the volume
February 2019
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
549-559
UT code for WoS article
000458221600050
EID of the result in the Scopus database
2-s2.0-85058507514