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Improvement of bagasse fiber–cement composites by addition of bacterial nanocellulose: an inverse gas chromatography study

2017Journal article Open access
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dc.contributor.authorMohammadkazemi, F.
dc.contributor.authorAguiar, R.
dc.contributor.authorCordeiro, N.
dc.date.accessioned2021-04-22T15:29:39Z
dc.date.available2021-04-22T15:29:39Z
dc.date.issued2017
dc.description.abstractThe design of green fiber-reinforced nanocomposites with enhanced properties and dura bility has attracted attention from scientists. The present study aims to investigate the potential of bacterial nanocellulose (BNC) as a green additive for fiber–cement composites. Inverse gas chromatography (IGC) was used to evaluate the influence of incorpo ration of BNC as powder or gel, or coated onto the bagasse fibers, on the fiber–cement composite (FCC) surface. The results indicated that BNC incorporation made the FCC surface more reactive, increasing the dispersive component of the surface energy. The most relevant effects were found for BNC incorporation as gel or coated on the fibers. Incorporation of BNC as gel resulted in a predominantly organic FCC surface with substantial decreased surface basicity (Ka/Kb ratio from 2.88 to 5.75). IGC also showed that FCC with BNC incorporated as gel was more susceptible to hydration. However, BNC coated on fibers prevented fiber mineralization, increasing the inorganic materi als at the surface, which caused an increase in the surface basicity (Ka/Kb ratio decrease to 2.00). These promising results could contribute to development of a new generation of green hybrid composites. The IGC technique enabled understanding of the physicochem ical changes that occur on deliberate introduction of nanosized bacterial cellulose into fiber–cement composites.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMohammadkazemi, F., Aguiar, R., & Cordeiro, N. (2017). Improvement of bagasse fiber–cement composites by addition of bacterial nanocellulose: an inverse gas chromatography study. Cellulose, 24(4), 1803-1814.pt_PT
dc.identifier.doi10.1007/s10570-017-1210-4pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3318
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBacterial nanocellulosept_PT
dc.subjectBagasse fiberpt_PT
dc.subjectGreen compositespt_PT
dc.subjectInverse gas chromatography (IGC)pt_PT
dc.subjectFiber–cement compositespt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleImprovement of bagasse fiber–cement composites by addition of bacterial nanocellulose: an inverse gas chromatography studypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1814pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage1803pt_PT
oaire.citation.titleCellulosept_PT
oaire.citation.volume24pt_PT
person.familyNamecordeiro
person.givenNamenereida
person.identifier1612636
person.identifier.ciencia-id521A-0F62-EA39
person.identifier.orcid0000-0001-6006-3415
person.identifier.ridO-2253-2019
person.identifier.scopus-author-id7004319456
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication3d02b657-c48c-4f56-813a-1284b81960f3
relation.isAuthorOfPublication.latestForDiscovery3d02b657-c48c-4f56-813a-1284b81960f3

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