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Naslov:Diketopyrrolopyrrole pigment core@multi-layer SiO2 shell with improved photochemical stability
Avtorji:ID Švara Fabjan, Erika (Avtor)
ID Saghi, Zineb (Avtor)
ID Midgley, Paul A. (Avtor)
ID Otoničar, Mojca (Avtor)
ID Dražić, Goran (Avtor)
ID Gaberšček, Miran (Avtor)
ID Sever Škapin, Andrijana (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://doi.org/10.1016/j.dyepig.2018.03.064
 
.pdf PDF - Predstavitvena datoteka, prenos (1,78 MB)
MD5: C0519BA54373E08FEE55439CC86D79C4
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:A model organic pigment (diketopyrrolopyrrole) is encapsulated by a silica coating in order to improve its photochemical stability. Unlike in previous works where single-layer silica coatings were used for similar purposes, we here propose creation of a multi-layer silica shell synthesized via in-situ sol-gel method, which should significantly improve the homogeneity and thus the protection ability of the coating. This is done by repeating the basic two-step process (pigment surface modification and silica encapsulation) several times, creating the final protective shell in a layer-by-layer fashion. The compositional and structural properties of the prepared coatings is studied using Fourier-transform infrared spectroscopy, differential thermal and thermogravimetric analysis, nitrogen adsorption measurements and transmission electron microscopy. Photochemical stability of non-encapsulated and encapsulated pigment particles is evaluated via the so-called fast-irradiation method. Various correlations between the essential coating properties, such as thickness, porosity, SiO2 content, and the corresponding photochemical stability of the samples are established and discussed in detail. As a whole, our results confirm the basic hypothesis, that multiple-layered silica shells show improved pigment protection ability in comparison to the single-layer coatings.
Ključne besede:organic pigments, silica coating, encapsulation, morphology, photocemical stability
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:29.03.2018
Založnik:Elsevier
Leto izida:2018
Št. strani:str. 108-115
Številčenje:Vol. 156
PID:20.500.12556/DiRROS-18572 Novo okno
UDK:54
ISSN pri članku:0143-7208
DOI:10.1016/j.dyepig.2018.03.064 Novo okno
COBISS.SI-ID:2357351 Novo okno
Avtorske pravice:© 2018 The Authors. Published by Elsevier Ltd.
Opomba:Sodelavci: Zineb Saghi, Paul A. Midgley, Mojca Otoničar, Goran Dražić, Miran Gaberšček, Andrijana Sever Škapin;
Datum objave v DiRROS:27.03.2024
Število ogledov:993
Število prenosov:393
Metapodatki:XML DC-XML DC-RDF
:
ŠVARA FABJAN, Erika, SAGHI, Zineb, MIDGLEY, Paul A., OTONIČAR, Mojca, DRAŽIĆ, Goran, GABERŠČEK, Miran in SEVER ŠKAPIN, Andrijana, 2018, Diketopyrrolopyrrole pigment core@multi-layer SiO2 shell with improved photochemical stability. Dyes and pigments [na spletu]. 2018. Vol. 156, p. 108–115. [Dostopano 12 april 2025]. DOI 10.1016/j.dyepig.2018.03.064. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=18572
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Gradivo je del revije

Naslov:Dyes and pigments
Skrajšan naslov:Dyes pigm.
Založnik:Elsevier
ISSN:0143-7208
COBISS.SI-ID:25357056 Novo okno

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0273
Naslov:Gradbeni objekti in materiali
Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:Z1-8149
Naslov:Kolorimetrično določanje relativne vlažnosti na osnovi mezoporoznih SiO2 delcev

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:01.09.2018
Vezano na:Text and Data Mining valid from 2018-09-01 Version of Record valid from 2018-10-25

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:organski pigmenti, SiO2 sloj, enkapsulacija, morfologija, fotokemijska stabilnost


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