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On the performance and recyclability of a green composite based on AESO resin

2020-07-04Journal article Open access
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dc.contributor.authorSeabra, Cláudio P.
dc.contributor.authorSousa, Ana Catarina
dc.contributor.authorBragança, Ivo
dc.contributor.authorSilva, Carlos
dc.contributor.authorRobalo, M. Paula
dc.contributor.authorLoja, Amélia
dc.contributor.authorMartins, Paulo
dc.date.accessioned2020-07-13T15:11:10Z
dc.date.available2020-07-13T15:11:10Z
dc.date.issued2020-07-04
dc.description.abstractThe aims and objectives of this paper are two-fold: first to investigate the production of a green composite manufactured with renewable materials (i.e., jute fabric as reinforcement, acrylate epoxidase soybean oil (AESO) as matrix and sisal particles (SP) as filler), by the wet layup method; second, to propose a recycling procedure to recover the individual materials and reuse them in the production of a second-life composite. In the first part, di_erent combinations of SP (0, 5 and 10 wt%) and hardener (2, 5 and 10 wt%) were mixed with AESO resin, poured into a mould, cured and submitted to mechanical and physicochemical characterizations to identify the best conditions for the composite production. Virgin green composites with 10 wt% SP, 5 wt% hardener and 5 layers of jute fabric, capable of assuring 91 HA of hardness and 10.6 MPa of tensile strength, were fabricated. The second part describes the recycling process of the composites with acetone, an organic solvente recommended by the safety, health and environmental criteria, to breakdown the resin matrix and recover the jute fabric reinforcement and resin particles, which were then reused to fabricate a second-life composite. Although the hardness values of the second-life composite were smaller (4%) and the tensile strength varied with composition, the absorption of water was considerably reduced (in the range of 22 to 51%). This last result mitigates one of the green composite’s limitations and fosters circular economy by assuring the applications of the second-life composite in the field of transportations, packing and furniture, among others.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSEABRA, Cláudio P.; [et al] – On the performance and recyclability of a green composite based on AESO resin. Journal of Manufactering and Materials Processing. ISSN 2504-4494. Vol. 4, N.º 3 (2020), pp. 1-14pt_PT
dc.identifier.doi10.3390/jmmp4030065pt_PT
dc.identifier.issn2504-4494
dc.identifier.urihttp://hdl.handle.net/10400.21/12033
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationUID/EMS/50022/2020 - FCT, IDMEC under LAETApt_PT
dc.relationUIDB/00100/2020 - CQE/ISTpt_PT
dc.subjectGreen compositept_PT
dc.subjectRecyclingpt_PT
dc.subjectSecond-life compositept_PT
dc.subjectNatural fibrespt_PT
dc.subjectSoybean oilpt_PT
dc.subjectMechanical propertiespt_PT
dc.subjectWater absorptionpt_PT
dc.titleOn the performance and recyclability of a green composite based on AESO resinpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage14pt_PT
oaire.citation.issue3pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleJournal of Manufactering and Materials Processingpt_PT
oaire.citation.volume4pt_PT
person.familyNameSousa
person.familyNameBragança
person.familyNameSilva
person.familyNameRobalo
person.familyNameLoja
person.familyNameMartins
person.givenNameAna Catarina
person.givenNameIvo
person.givenNameCarlos
person.givenNameMaria Paula
person.givenNameAmélia
person.givenNamePaulo
person.identifier465039
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person.identifier.orcid0000-0002-8200-6910
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person.identifier.orcid0000-0002-2630-4593
person.identifier.ridU-3597-2017
person.identifier.ridM-6219-2013
person.identifier.ridB-2002-2012
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person.identifier.scopus-author-id55671241900
person.identifier.scopus-author-id55932125100
person.identifier.scopus-author-id9269662100
person.identifier.scopus-author-id15741348500
person.identifier.scopus-author-id7006083921
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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