Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Thermally insulating and fire-retardant lightweight anisotropic foams based on nanocellulose and graphene oxide
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK). Royal Institute of Technology, Sweden.ORCID-id: 0000-0002-0671-435X
Visa övriga samt affilieringar
2015 (Engelska)Ingår i: Nature Nanotechnology, ISSN 1748-3387, E-ISSN 1748-3395, Vol. 10, nr 3, s. 277-283Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

High-performance thermally insulating materials from renewable resources are needed to improve the energy efficiency of buildings. Traditional fossil-fuel-derived insulation materials such as expanded polystyrene and polyurethane have thermal conductivities that are too high for retrofitting or for building new, surface-efficient passive houses. Tailored materials such as aerogels and vacuum insulating panels are fragile and susceptible to perforation. Here, we show that freeze-casting suspensions of cellulose nanofibres, graphene oxide and sepiolite nanorods produces super-insulating, fire-retardant and strong anisotropic foams that perform better than traditional polymer-based insulating materials. The foams are ultralight, show excellent combustion resistance and exhibit a thermal conductivity of 15 mW m(-1) K-1, which is about half that of expanded polystyrene. At 30 degrees C and 85% relative humidity, the foams retained more than half of their initial strength. Our results show that nanoscale engineering is a promising strategy for producing foams with excellent properties using cellulose and other renewable nanosized fibrous materials.

Ort, förlag, år, upplaga, sidor
2015. Vol. 10, nr 3, s. 277-283
Nationell ämneskategori
Materialteknik Nanoteknik
Identifikatorer
URN: urn:nbn:se:su:diva-116614DOI: 10.1038/NNANO.2014.248ISI: 000350799700021PubMedID: 25362476OAI: oai:DiVA.org:su-116614DiVA, id: diva2:809098
Anmärkning

AuthorCount:7;

Tillgänglig från: 2015-04-30 Skapad: 2015-04-22 Senast uppdaterad: 2022-02-23Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextPubMed

Person

Salazar-Alvarez, GermanBergström, Lennart

Sök vidare i DiVA

Av författaren/redaktören
Salazar-Alvarez, GermanBergström, Lennart
Av organisationen
Institutionen för material- och miljökemi (MMK)
I samma tidskrift
Nature Nanotechnology
MaterialteknikNanoteknik

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetricpoäng

doi
pubmed
urn-nbn
Totalt: 388 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf