Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • 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
Surface energy characterization of thermally modified spruce using inverse gas chromatography under cyclic humidity conditions
KTH Royal Institute of Technology, Sweden.
KTH Royal Institute of Technology, Sweden.
RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad. KTH Royal Institute of Technology, Sweden.ORCID-id: 0000-0001-7014-6230
RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
2015 (Engelska)Ingår i: Wood and Fiber Science, ISSN 0735-6161, Vol. 47, nr 4, s. 410-420Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The surface energy of unmodified and thermally modified spruce wood components was researched at dry and moist conditions using inverse gas chromatography. The results indicate a more pronounced heterogeneous nature of the thermally modified wood surfaces in terms of the dispersive (nonpolar) component of the surface energy, compared with that of the unmodified wood surfaces. The dispersive component of the surface energy of the thermally modified wood ranged between 44 and 38 mJ/m2 corresponding to an increase in surface coverage from a low level and up to about 10%. Suggested explanations for the more distinct heterogeneity of the thermally modified wood sample arerelated to chemical changes of the wood substance which seem to result in certain micromorphological features observed by scanning electron microscopy as alternated fracture surfaces created in the grinding process; and also possible changes or redistribution of the wood extractives. An increase of the MC, representing a change from a dry condition of approximately 0% RH to ca 75% RH, of both the unmodified and thermally modified samples seemed to have a marginal influence on the dispersive component of the surface energy. Possible implications of the results in this study can be found in the tailoring of new compatible and durable material combinations, for example, when using thermally modified wood residuals as a component in new types of biocomposites.

Ort, förlag, år, upplaga, sidor
2015. Vol. 47, nr 4, s. 410-420
Nyckelord [en]
BET-specific surface area, Dispersive surface energy, Humidity cycling, Inverse gas chromatography, Norway spruce, Surface energy heterogeneity, Thermally modified wood
Nationell ämneskategori
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:ri:diva-6925Scopus ID: 2-s2.0-84991704745Lokalt ID: 30935OAI: oai:DiVA.org:ri-6925DiVA, id: diva2:964767
Tillgänglig från: 2016-09-08 Skapad: 2016-09-08 Senast uppdaterad: 2019-08-09Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Scopushttps://wfs.swst.org/index.php/wfs/article/view/2371

Personposter BETA

Segerholm, Kristoffer

Sök vidare i DiVA

Av författaren/redaktören
Segerholm, Kristoffer
Av organisationen
SP Hållbar SamhällsbyggnadSP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm)
I samma tidskrift
Wood and Fiber Science
Naturvetenskap

Sök vidare utanför DiVA

GoogleGoogle Scholar

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 26 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • 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
v. 2.35.8