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dc.contributor.authorWang, Liang
dc.contributor.authorSchiraldi, David A.
dc.contributor.authorSánchez Soto, Miguel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.date.accessioned2014-06-04T14:13:08Z
dc.date.created2014
dc.date.issued2014
dc.identifier.citationWang, L.; Schiraldi, D.; Sanchez, M. Foamlike xanthan gum/clay aerogel composites and tailoring properties by blending with agar. "Industrial & engineering chemistry research", 2014, vol. 53, núm. 18, p. 7680-7687.
dc.identifier.issn0888-5885
dc.identifier.urihttp://hdl.handle.net/2117/23159
dc.description.abstractFoamlike aerogel composites based on renewable xanthan gum (XG) and sodium montmorillonite clay (Na+- MMT) have been prepared using an environmentally friendly freeze-drying process. Additionally, the biobased polysaccharide agar was used to improve the properties of XG/clay aerogels. Fourier transform infrared spectroscopy showed molecular interactions between biopolymers and clay in the aerogel composites. A wide range of microstructures and mechanical properties were obtained with a minimal variation in the density by changing the blended ratio of xanthan gum and agar, with particular emphasis on the addition of 2.5% agar to XG/clay aerogels, which significantly enhanced the mechanical properties. Thermogravimetric analysis revealed that clay improved the thermal stability of aerogels; however, the thermal stability of blends of xanthan gum and agar worsened. Flammability was analyzed through cone calorimeter, which suggested xanthan gum/clay aerogels possessed lower flammability than other typical foams. Clay served as a heat and mass transport, which significantly improved the flame retardancy of the base aerogels.
dc.format.extent8 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Materials compostos
dc.subject.lcshAerogels
dc.subject.lcshMaterials--Testing
dc.subject.lcshComposite materials--Testing
dc.titleFoamlike xanthan gum/clay aerogel composites and tailoring properties by blending with agar
dc.typeArticle
dc.subject.lemacAerogels
dc.subject.lemacAssaigs de materials
dc.subject.lemacMaterials compostos -- Proves
dc.contributor.groupUniversitat Politècnica de Catalunya. POLYCOM - Polimers i compòsits: tecnologia
dc.identifier.doi10.1021/ie500490n
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://pubs.acs.org/articlesonrequest/AOR-YT8sZp5vvxyGJB5Ncieb
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac14135414
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorWang, L.; Schiraldi, D.; Sanchez, M.
local.citation.publicationNameIndustrial & engineering chemistry research
local.citation.volume53
local.citation.number18
local.citation.startingPage7680
local.citation.endingPage7687


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