| dc.contributor.author | Tokarský, Jonáš | |
| dc.contributor.author | Martinec, Petr | |
| dc.contributor.author | Mamulová Kutláková, Kateřina | |
| dc.contributor.author | Ovčačíková, Hana | |
| dc.contributor.author | Študentová, Soňa | |
| dc.contributor.author | Ščučka, Jiří | |
| dc.date.accessioned | 2019-04-11T08:35:15Z | |
| dc.date.available | 2019-04-11T08:35:15Z | |
| dc.date.issued | 2019 | |
| dc.identifier.citation | Construction and Building Materials. 2019, vol. 199, p. 549-559. | cs |
| dc.identifier.issn | 0950-0618 | |
| dc.identifier.issn | 1879-0526 | |
| dc.identifier.uri | http://hdl.handle.net/10084/134585 | |
| dc.description.abstract | 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. | cs |
| dc.language.iso | en | cs |
| dc.publisher | Elsevier | cs |
| dc.relation.ispartofseries | Construction and Building Materials | cs |
| dc.relation.uri | http://doi.org/10.1016/j.conbuildmat.2018.12.045 | cs |
| dc.rights | © 2018 Elsevier Ltd. All rights reserved. | cs |
| dc.subject | sandstone | cs |
| dc.subject | protection | cs |
| dc.subject | hydrophobicity | cs |
| dc.subject | photoactivity | cs |
| dc.subject | ZnO | cs |
| dc.subject | poly(alkyl siloxane) | cs |
| dc.title | Photoactive and hydrophobic nano-ZnO/poly(alkyl siloxane) coating for the protection of sandstone | cs |
| dc.type | article | cs |
| dc.identifier.doi | 10.1016/j.conbuildmat.2018.12.045 | |
| dc.type.status | Peer-reviewed | cs |
| dc.description.source | Web of Science | cs |
| dc.description.volume | 199 | cs |
| dc.description.lastpage | 559 | cs |
| dc.description.firstpage | 549 | cs |
| dc.identifier.wos | 000458221600050 | |