Effects of the preparation, curing and hygrothermal conditions on the viscoelastic response of a structural epoxy adhesive

doi:10.1016/j.ijadhadh.2021.102961

Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/78072

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Campo DC	Valor	Idioma
dc.contributor.author	Cruz, Ricardo	por
dc.contributor.author	Correia, Luís	por
dc.contributor.author	Cabral-Fonseca, Susana	por
dc.contributor.author	Sena-Cruz, José	por
dc.date.accessioned	2022-05-30T22:13:11Z	-
dc.date.available	2023-01-01T07:01:10Z	-
dc.date.issued	2021	-
dc.date.submitted	2021	-
dc.identifier.citation	Cruz, R., Correia, L., Cabral-Fonseca, S., & Sena-Cruz, J. (2021). Effects of the preparation, curing and hygrothermal conditions on the viscoelastic response of a structural epoxy adhesive. International Journal of Adhesion and Adhesives, 110, 102961. doi: https://doi.org/10.1016/j.ijadhadh.2021.102961	por
dc.identifier.issn	0143-7496	por
dc.identifier.uri	https://hdl.handle.net/1822/78072	-
dc.description.abstract	This paper addresses the viscoelastic behaviour of a commercially available cold-curing structural epoxy adhesive, under different preparation, curing and hygrothermal conditions. The main parameters studied were the preparation method (influence of the degassing and the temperature of the initial curing), the creep stress level, and the hygrothermal conditions. Tensile creep tests last up to 2400 hours. Test results revealed that the preparation method has great influence on the tensile properties of the adhesive, particularly on the viscoelastic response where degassing and curing at 20 ºC showed lower creep deformations. Specimens under 98% of relative humidity faced tertiary creep and then rupture. For the adopted levels of creep stress, the adhesive shows a linear creep behaviour, being parameterized using the Burgers and the modified Burgers equations.	por
dc.description.abstract	This paper addresses the viscoelastic behaviour of a commercially available cold-curing structural epoxy adhesive, under different preparation, curing and hygrothermal conditions. The main parameters studied were the preparation method (influence of the degassing and the temperature of the initial curing), the creep stress level, and the hygrothermal conditions. Tensile creep tests last up to 2400 hours. Test results revealed that the preparation method has great influence on the tensile properties of the adhesive, particularly on the viscoelastic response where degassing and curing at 20 ºC showed lower creep deformations. Specimens under 98% of relative humidity faced tertiary creep and then rupture. For the adopted levels of creep stress, the adhesive shows a linear creep behaviour, being parameterized using the Burgers and the modified Burgers equations.	por
dc.description.sponsorship	This work was carried out in scope of the project FRPLongDur POCI-01-0145-FEDER-016900 (FCT PTDC/ECM-EST/1282/2014) funded by national funds through the Foundation for Science and Technology (FCT) and co-financed by the European Fund of the Regional Develop-ment (FEDER) through the Operational Program for Competitiveness and Internationalization (POCI) and the Lisbon Regional Operational Program and, partially financed by the project POCI-01-0145-FEDER-007633. This work was also partly financed by FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE) , under reference UIDB/04029/2020. The authors also like to thank the S&P Clever Reinforce-ment Iberica Lda.com pany for providing the materials. The first author wishes also to acknowledge the grant SFRH/BD/131259/2017 provided by Fundacao para a Ciencia e a Tecnologia (FCT) , while the fourth author acknowledge his sabbatical grant SFRH/BSAB/150266/2019, provided by FCT, financed by European Social Fund and by national funds through the FCT/MCTES.	por
dc.language.iso	eng	por
dc.publisher	Elsevier 1	por
dc.relation	info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FECM-EST%2F1282%2F2014/PT	por
dc.relation	info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FECM-EST%2F1282%2F2014/PT	por
dc.relation	info:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F131259%2F2017/PT	por
dc.relation	info:eu-repo/grantAgreement/FCT/OE/SFRH%2FBSAB%2F150266%2F2019/PT	por
dc.rights	openAccess	por
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	por
dc.subject	Epoxy adhesive	por
dc.subject	Epoxy adhesive	por
dc.subject	Viscoelasticity	por
dc.subject	Viscoelasticity	por
dc.subject	Creep	por
dc.subject	Creep	por
dc.subject	Curing conditions	por
dc.subject	Curing conditions	por
dc.title	Effects of the preparation, curing and hygrothermal conditions on the viscoelastic response of a structural epoxy adhesive	por
dc.type	article	-
dc.peerreviewed	yes	por
dc.relation.publisherversion	https://www.sciencedirect.com/science/article/pii/S0143749621001597	por
oaire.citationVolume	110	por
dc.identifier.doi	10.1016/j.ijadhadh.2021.102961	por
dc.subject.fos	Engenharia e Tecnologia::Engenharia Civil	por
dc.subject.wos	Science & Technology	por
sdum.journal	International Journal of Adhesion and Adhesives	por
oaire.version	AM	por
dc.identifier.articlenumber	102961	por
dc.subject.ods	Indústria, inovação e infraestruturas	por
dc.subject.ods	Cidades e comunidades sustentáveis	por
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