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Foamlike xanthan gum/clay aerogel composites and tailoring properties by blending with agar
dc.contributor.author | Wang, Liang |
dc.contributor.author | Schiraldi, David A. |
dc.contributor.author | Sánchez Soto, Miguel |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica |
dc.date.accessioned | 2014-06-04T14:13:08Z |
dc.date.created | 2014 |
dc.date.issued | 2014 |
dc.identifier.citation | Wang, 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.issn | 0888-5885 |
dc.identifier.uri | http://hdl.handle.net/2117/23159 |
dc.description.abstract | Foamlike 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.extent | 8 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria dels materials::Materials compostos |
dc.subject.lcsh | Aerogels |
dc.subject.lcsh | Materials--Testing |
dc.subject.lcsh | Composite materials--Testing |
dc.title | Foamlike xanthan gum/clay aerogel composites and tailoring properties by blending with agar |
dc.type | Article |
dc.subject.lemac | Aerogels |
dc.subject.lemac | Assaigs de materials |
dc.subject.lemac | Materials compostos -- Proves |
dc.contributor.group | Universitat Politècnica de Catalunya. POLYCOM - Polimers i compòsits: tecnologia |
dc.identifier.doi | 10.1021/ie500490n |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://pubs.acs.org/articlesonrequest/AOR-YT8sZp5vvxyGJB5Ncieb |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 14135414 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Wang, L.; Schiraldi, D.; Sanchez, M. |
local.citation.publicationName | Industrial & engineering chemistry research |
local.citation.volume | 53 |
local.citation.number | 18 |
local.citation.startingPage | 7680 |
local.citation.endingPage | 7687 |
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