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Polyurethane foams from liquefied orange peel wastes

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dc.contributor.authorDomingos, Idalina
dc.contributor.authorFerreira, José
dc.contributor.authorCruz-Lopes, Luísa
dc.contributor.authorEsteves, Bruno
dc.date.accessioned2019-05-24T14:59:20Z
dc.date.available2019-05-24T14:59:20Z
dc.date.issued2019
dc.description.abstractWaste conversion into value added materials is a growing subject due to environmental concerns. In the production of orange juice high amounts of orange peel waste are generated and although they are used for the extraction of some extractable compounds a new waste is generated not much different from before. The aim of this work was to determine the possibility of efficiently converting orange peel waste into a liquefied material for the production of more environmentally benign polyurethane foams and test the influence of the proportion of isocyanate, catalyst, surfactant and blowing agent in physical and mechanical properties of the foams. Dry orange peel was liquefied using a mixture of ethyleneglycol and glycerol (1:1) as solvents, catalysed by sulphuric acid at 180 °C for 60 min. A ratio of 9:1 solvent/lignocellulosic material was used and 3% of sulphuric acid was added based on the solvent mass. Density, compressive stress at 10% and young modulus were determined for each foam. The results show that a good liquefaction yield can be achieved by polyalcohol liquefaction of orange peel waste and that this material can successfully be converted into a polyurethane foam with satisfying properties. Moreover the results showed that the physical and mechanical properties of the foam could be tailored by a careful choice of the additives used in foam formationpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDomingos I, Ferreira J, Cruz-Lopes L, Esteves B (2019). Polyurethane foams from liquefied orange peel wastes. Food and Bioproducts Processing, 115, pp 223-229pt_PT
dc.identifier.doi10.1016/j.fbp.2019.04.002pt_PT
dc.identifier.issn0960-3085
dc.identifier.urihttp://hdl.handle.net/10400.19/5512
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherELSEVIERpt_PT
dc.relationThis work is financed by national funds through FCT - Fundação para a Ciência e Tecnologia, I.P., under the project UID/Multi/04016/2016. Furthermore we would like to thank the Instituto Politécnico de Viseu and CI&DETS for their support.pt_PT
dc.subjectLiquefactionpt_PT
dc.subjectOrange peelpt_PT
dc.subjectFTIRpt_PT
dc.subjectFoampt_PT
dc.subjectIsocyanatept_PT
dc.subjectCatalystpt_PT
dc.subjectSurfactantpt_PT
dc.subjectBlowing agentpt_PT
dc.titlePolyurethane foams from liquefied orange peel wastespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage229pt_PT
oaire.citation.startPage223pt_PT
oaire.citation.titleFood and Bioproducts Processingpt_PT
oaire.citation.volume115pt_PT
person.familyNameDomingos
person.familyNameFerreira
person.familyNameGonçalves Oliveira Valente da Cruz-Lopes
person.familyNameEsteves
person.givenNameidalina
person.givenNameJosé
person.givenNameLuísa Paula
person.givenNameBruno
person.identifier2119255
person.identifier.ciencia-id7116-E1DE-88E7
person.identifier.ciencia-idB81E-BE45-E128
person.identifier.ciencia-id7916-0833-5B38
person.identifier.ciencia-id521B-63A7-B248
person.identifier.orcid0000-0002-4308-1563
person.identifier.orcid0000-0001-7596-8065
person.identifier.orcid0000-0001-6502-7202
person.identifier.orcid0000-0001-6660-3128
person.identifier.ridC-2173-2012
person.identifier.scopus-author-id24281086400
person.identifier.scopus-author-id18133647300
person.identifier.scopus-author-id57202554441
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication50134ab7-55eb-4e8a-a5ea-5cc54b1468e3
relation.isAuthorOfPublication7d09c228-3415-4272-9299-89c6951565d7
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relation.isAuthorOfPublicationa3351493-41e8-4758-acae-39e3382d0b04
relation.isAuthorOfPublication.latestForDiscovery7d09c228-3415-4272-9299-89c6951565d7

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