Naslov
Colorimetric analysis and light fastness of coatings based on acrylate resins on AA1050 aluminium alloys

Autori
Theohari, Stamatina ; Mahović Poljaček, Sanja ; Tomašegović, Tamara ; Stefanis, A. ; Ntaflou, E.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstracts | 8th International Conference on Typography & Visual Communication / Mastoridis, Klimis - Solun : Institute for the Study of Typography and Visual Communication, 2022, 106-107

Skup
8th International Conference on Typography & Visual Communication (8th ICTVC): Beyond the obvious. Typography and Visual Communication in times of disruption

Mjesto i datum
Solun, Grčka, 07.07.2022. - 09.07.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Recenziran

Ključne riječi
aluminium, inks, nanoparticles, screen printing

Sažetak
Deposition of coatings on metal substrates using screen printing technique can find application in various industries. For deposition of technical coatings and for different decorative and industrial applications, aluminium has gained a great interest due to its distinct properties. In order to define the functionality of printed coatings, extensive research should be carried out to adjust the properties of the used materials and to tailor the coatings for the specific applications. In this work, the colorimetric analysis and light fastness of coatings based on acrylate resins screen printed on ΑΑ1050 aluminium alloys were studied. Nanoparticles of silica and titanium dioxide were added to the ink composition to determine the potential benefits of coatings prepared by the addition of nanomaterials for the colorimetric stability of aged and unaged coatings. The aluminium surface was chemically pretreated and anodized prior to the printing process to modify the surface properties and ensure optimal printability. The surface roughness of the aluminium samples was measured to determine the influence of the anodizing process on the morphology of the samples. The thickness of the coatings as well as the colorimetric properties, optical density and CIE Lab values, were measured on the samples before and after accelerated ageing. ATR-FTIR spectroscopy was used to identify the changes in the surface of the coatings after the ageing process. The results showed that the different structure of the anodized aluminium results in coatings of different thicknesses. Colorimetric analysis showed that the addition of nanoparticles to inks did not cause any specific changes in the coatings, but did have some effect on the lightfastness of the coatings.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

POVEZANOST RADA