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A cork-silica xerogel nanocomposite with unique properties

2017-09Artigo científico Acesso restrito
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dc.contributor.authorGarcia, Ana
dc.contributor.authorJulio, M. F.
dc.contributor.authorIlharco, L. M.
dc.date.accessioned2019-11-20T15:07:24Z
dc.date.available2019-11-20T15:07:24Z
dc.date.issued2017-09
dc.description.abstractTaking advantage of the bonding between cork and silica xerogel, environmentally friendly nanocomposites are synthesized by a sol-gel process and dried at ambient pressure, with a superb combination of properties: densities near 600 kg m(-3), surface areas of 200 m(2) g(-1), mechanical strength up to 24 MPa, Shore D hardness up to 58 and, moreover, flame retardant. These properties are tunable by adjusting the synthesis parameters. The effects of cork granulometry and pre-swelling, and of the catalysis conditions are analyzed. Potential applications for these innovative nanocomposites are envisaged as replacement of thermoplastic polymers or hard wood, when non-flammability is desirable. The present approach opens a range of possibilities for developing unique composite materials that use natural and inexpensive raw resources and soft synthesis processes, with little energy requirements. [GRAPHICS]
dc.description.sponsorshipFundacao para a Ciencia e a Tecnologia (FCT) [UID/NAN/50024/2013]
dc.description.sponsorshipFCT
dc.description.sponsorshipSaint-Gobain Weber Portugal S.A. [SFRH/BDE/112796/2015]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1007/s10971-017-4436-6
dc.identifier.issn0928-0707
dc.identifier.issn1573-4846
dc.identifier.urihttp://hdl.handle.net/10400.1/13021
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer
dc.rights.urihttp://creativecommons.org/licenses/by/4.
dc.subjectQuercus-Suber L
dc.subjectSpectroscopy
dc.subjectAdsorption
dc.subjectCellulose
dc.subjectRemoval
dc.subjectWater
dc.titleA cork-silica xerogel nanocomposite with unique properties
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FNAN%2F50024%2F2013/PT
oaire.citation.endPage573
oaire.citation.issue3
oaire.citation.startPage567
oaire.citation.titleJournal of Sol-Gel Science and Technology
oaire.citation.volume83
oaire.fundingStream5876
person.familyNameGarcia
person.givenNameAna
person.identifier.ciencia-idB214-EA2D-350A
person.identifier.orcid0000-0001-6289-4554
person.identifier.scopus-author-id7404608764
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublicatione49828e5-432e-46e3-a7fc-2fdbf51a237b
relation.isAuthorOfPublication.latestForDiscoverye49828e5-432e-46e3-a7fc-2fdbf51a237b
relation.isProjectOfPublication42a1b47f-c066-4905-9630-19ce8718d1be
relation.isProjectOfPublication.latestForDiscovery42a1b47f-c066-4905-9630-19ce8718d1be

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