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Formulation and Characterization of a Composite Coating Formulation Based on Acrylic Foam and Cork Granules

2022-05-26Artigo de investigação Acesso aberto
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dc.contributor.authorMonteiro, Sandra
dc.contributor.authorFerreira, Nuno
dc.contributor.authorPaiva, Diana
dc.contributor.authorSilva, Susana P.
dc.contributor.authorMartins, Jorge
dc.contributor.authorCarvalho, Luisa
dc.contributor.authorMagalhães, Fernão D.
dc.date.accessioned2026-08-20T10:39:31Z
dc.date.available2026-08-20T10:39:31Z
dc.date.issued2022-05-26en_US
dc.date.updated2026-08-18T23:16:11Z
dc.description.abstractCork, the bark of Quercus suber L., in addition to presenting several notable physicalmechanical properties, possesses a distinctive look and feel that make it attractive for interior surfaces, such as in furniture, wall paneling, or flooring. This work envisaged the development of a coating based on cork granules, a subproduct from the wine stopper industry, capable of creating a smooth surface similar to natural cork. In order to avoid the high rugosity that characterizes surfaces coated with paints that incorporate cork granules, a new solution was developed, based on a foamed acrylic binder, applied by knife coating. The foam formulation was successfully optimized, using appropriate additives and resorting to mechanical agitation to promote the generation of air bubbles. The addition of cork granules did not hinder foam stability, and the final coating displayed the intended visual and sensory characteristics. Dynamic Mechanical Analysis was performed on the pristine acrylic foam and on the composite foam showed a stiffening effect associated with the presence of cork granules, and a thermal transition centered at around −10 ◦C, associated with the acrylic binder’s glass transition. The surface has hardness slightly lower than cork, depending on the amount of particles incorporated. Pull-off testing consistently resulted in substrate failure, indicating that the coating’s cohesion and adhesion are excellent. The developed coating showed to have the intended functionality while being easily applicable on flat panel surfaces. The fact that a foam is used as a binder system allows for a smooth and soft surface, having excellent opacity with minimal usage of cork.eng
dc.description.versionN/A
dc.identifier.citationMonteiro, S.; Ferreira, N.; Paiva, D.; Silva, S.P.; Martins, J.; Carvalho, L.H.; Magalhães, F.D. Formulation and Characterization of a Composite Coating Formulation Based on Acrylic Foam and Cork Granules. Coatings 2022, 12, 732. https://doi.org/10.3390/ coatings12060732
dc.identifier.doi10.3390/coatings12060732en_US
dc.identifier.issn2079-6412en_US
dc.identifier.slugcv-prod-3040918
dc.identifier.urihttp://hdl.handle.net/10400.19/10088
dc.language.isoeng
dc.peerreviewedyes
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectacrylic
dc.subjectfoam
dc.subjectcoating
dc.subjectcork
dc.subjectcomposite
dc.subjectDMA
dc.subjectsurface characterization
dc.titleFormulation and Characterization of a Composite Coating Formulation Based on Acrylic Foam and Cork Granulesen_US
dc.typeresearch articleen_US
dspace.entity.typePublication
oaire.citation.endPage732
oaire.citation.issue6en_US
oaire.citation.startPage732
oaire.citation.titleCoatingsen_US
oaire.citation.volume12en_US
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameCarvalho
person.givenNameLuisa
person.identifier.orcid0000-0003-4557-7113
rcaap.cv.cienciaid6916-048F-9FD3 | Luísa Maria Hora de Carvalho
rcaap.rightsopenAccessen_US
relation.isAuthorOfPublicationf03fa799-1335-4bf0-92ba-4a7aeb96537c
relation.isAuthorOfPublication.latestForDiscoveryf03fa799-1335-4bf0-92ba-4a7aeb96537c

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