Publicação
Effects of artificial weathering on the surface properties of coated radiata pine
| dc.contributor.author | Sahin, Sirri | |
| dc.contributor.author | Esteves, Bruno | |
| dc.contributor.author | Can, Ahmet | |
| dc.contributor.author | Sivrikaya, Hüseyin | |
| dc.contributor.author | Domingos, Idalina | |
| dc.contributor.author | Ferreira, José | |
| dc.contributor.author | Ayata, Ümit | |
| dc.date.accessioned | 2023-12-20T11:50:44Z | |
| dc.date.available | 2023-12-20T11:50:44Z | |
| dc.date.issued | 2023-04 | |
| dc.date.updated | 2023-12-15T17:33:36Z | |
| dc.description.abstract | Radiata pine boards were coated with two different methods A and B both beginning with a hydro primer and finishing with a mat oil but method A using an acrylic high gloss coating and method B three layers of an acrylic sealer in between. The samples were subjected to aging processes for 144 h, 288 h, and 432 h by using UV-A 340 nm lamps. The CIE L*a*b* and CIE L*C*H* coordinates were determined (L*, a*, b*, C*, ho *, ΔE*), gloss (perpendicular ( ) and parallel (//) to the grain at 20°, 60°, and 85° angles) and surface adhesion strength via the pull-off method were tested before and after weathering. Results have shown that lightness (L*), decreases with weathering for both varnish applications with a higher decrease for the B coating system. Redness increased for both applications with no significant differences. At the same time there was a yellowing of the samples along the weathering period. Parallel and perpendicular gloss decreased for 20º and 60º angles while it increased for 85º angle. The adhesion strength of method A was higher and its decrease with weathering was smaller than for method B. Both varnish applications have proven to confer some protection against wood discoloration, but method A showed the best results and is therefore the best method to be used by radiata pine. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.doi | 10.4067/s0718-221x2023000100429 | pt_PT |
| dc.identifier.issn | 0718-221X | |
| dc.identifier.slug | cv-prod-3435023 | |
| dc.identifier.uri | http://hdl.handle.net/10400.19/8129 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.subject | Artificial weathering | pt_PT |
| dc.subject | color | pt_PT |
| dc.subject | glossiness | pt_PT |
| dc.subject | Pinus radia | pt_PT |
| dc.subject | varnish applications | pt_PT |
| dc.subject | wood discoloration | pt_PT |
| dc.title | Effects of artificial weathering on the surface properties of coated radiata pine | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 14 | pt_PT |
| oaire.citation.startPage | 1 | pt_PT |
| oaire.citation.title | Maderas. Ciencia y tecnología | pt_PT |
| oaire.citation.volume | 25 | pt_PT |
| person.familyName | Esteves | |
| person.familyName | Domingos | |
| person.familyName | Ferreira | |
| person.givenName | Bruno | |
| person.givenName | idalina | |
| person.givenName | José | |
| person.identifier | 2119255 | |
| person.identifier.ciencia-id | 521B-63A7-B248 | |
| person.identifier.ciencia-id | 7116-E1DE-88E7 | |
| person.identifier.ciencia-id | B81E-BE45-E128 | |
| person.identifier.orcid | 0000-0001-6660-3128 | |
| person.identifier.orcid | 0000-0002-4308-1563 | |
| person.identifier.orcid | 0000-0001-7596-8065 | |
| person.identifier.rid | C-2173-2012 | |
| person.identifier.scopus-author-id | 57202554441 | |
| person.identifier.scopus-author-id | 24281086400 | |
| person.identifier.scopus-author-id | 18133647300 | |
| rcaap.cv.cienciaid | 521B-63A7-B248 | Bruno Miguel Morais Lemos Esteves | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |
| relation.isAuthorOfPublication | a3351493-41e8-4758-acae-39e3382d0b04 | |
| relation.isAuthorOfPublication | 50134ab7-55eb-4e8a-a5ea-5cc54b1468e3 | |
| relation.isAuthorOfPublication | 7d09c228-3415-4272-9299-89c6951565d7 | |
| relation.isAuthorOfPublication.latestForDiscovery | 50134ab7-55eb-4e8a-a5ea-5cc54b1468e3 |