Logo do repositório
 
Publicação

Water resistance evaluation of a MFU resins with different molar ratio catalyzed with citric acid

2022-09Artigo de investigação Acesso aberto
Ver registo simples
dc.contributor.authorSantos, J.
dc.contributor.authorPereira, J.
dc.contributor.authorPaiva, N.
dc.contributor.authorFerra, J.
dc.contributor.authorMagalhães, F.D.
dc.contributor.authorMartins, Jorge Manuel
dc.contributor.authorCarvalho, Luisa
dc.date.accessioned2026-08-20T10:47:57Z
dc.date.available2026-08-20T10:47:57Z
dc.date.issued2022-09en_US
dc.date.updated2026-08-18T23:13:59Z
dc.description.abstractUrea, in either solid form or in solution, is an additive commonly used to control the viscosity or act as a scavenger in MF (melamine-formaldehyde) and MUF (melamine-urea-formaldehyde) resins for particleboard production. The aim of this work was to evaluate the influence of adding urea to MF (melamine-formaldehyde) resin in terms of the water-resistance of the final particleboards. FTIR-ATR spectroscopy, adhesive bonding evaluation system (ABES) and gravimetric techniques were used. MF and MFU (melamine-formaldehyde-urea) resins were prepared. Urea was introduced as an additive, in different percentages (0, 10, 20, and 30% (on adhesive, dry basis), and citric acid was used as catalyst. Beech veneer strips were bonded together with these formulations and then tested in dry conditions and after immersion in water for 24 h. The effect of urea load on the resin curing reaction in dry and humid joints was studied. Particleboards were produced with MF and MFU (melamine formaldehyde urea) resins with different urea loads and using industrial recycled wood particles as raw material. Particleboard evaluation indicated that the water resistance of the final particleboards decreased linearly with urea additioneng
dc.description.versionN/A
dc.identifier.citationSantos, J., Pereira, J., Paiva, N., Ferra, J., Magalhães, F. D., Martins, J. M., & de Carvalho, L. H. (2022). Water resistance evaluation of a MFU resins with different molar ratio catalyzed with citric acid. International Journal of Adhesion and Adhesives, AB2021 Special Issue, 117, 103020. 10.1016/j.ijadhadh.2021.103020
dc.identifier.doi10.1016/j.ijadhadh.2021.103020en_US
dc.identifier.issn0143-7496en_US
dc.identifier.slugcv-prod-4229854
dc.identifier.urihttp://hdl.handle.net/10400.19/10089
dc.language.isoeng
dc.peerreviewedyes
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectCitric acid
dc.subjectMelamine
dc.subjectAdhesive
dc.subjectWater-resistance
dc.subjectABES
dc.subjectFTIR-ATR
dc.titleWater resistance evaluation of a MFU resins with different molar ratio catalyzed with citric aciden_US
dc.typeresearch articleen_US
dspace.entity.typePublication
oaire.citation.startPage103020
oaire.citation.titleInternational Journal of Adhesion and Adhesivesen_US
oaire.citation.volume117en_US
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMartins
person.familyNameCarvalho
person.givenNameJorge Manuel
person.givenNameLuisa
person.identifier.orcid0000-0002-1189-0497
person.identifier.orcid0000-0003-4557-7113
rcaap.cv.cienciaid6916-048F-9FD3 | Luísa Maria Hora de Carvalho
rcaap.rightsopenAccessen_US
relation.isAuthorOfPublication843fe3ed-d71c-4115-9880-391b21de3644
relation.isAuthorOfPublicationf03fa799-1335-4bf0-92ba-4a7aeb96537c
relation.isAuthorOfPublication.latestForDiscoveryf03fa799-1335-4bf0-92ba-4a7aeb96537c

Ficheiros

Principais
A mostrar 1 - 1 de 1
Miniatura
Nome:
2022_Santos_Water_resistance_evaluation_of_a_MFU_resins_with_different_molar_ratio_catalyzed.pdf
Tamanho:
2.41 MB
Formato:
Adobe Portable Document Format
Ver/Abrir
Licença
A mostrar 1 - 1 de 1
Miniatura indisponível
Nome:
license.txt
Tamanho:
1.82 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Ver/Abrir

Coleções

ESTGV - DEM - Artigo em revista científica, indexada ao WoS/Scopus