Sökning: onr:"swepub:oai:DiVA.org:lnu-128375" >
Photodegradation st...
-
Ghavidel, AmirUniversity of Northern British Columbia, Canada
(författare)
Photodegradation stability of huminated European pine (Pinus sylvestris L.) microveneers
- Artikel/kapitelEngelska2024
Förlag, utgivningsår, omfång ...
-
Walter de Gruyter,2024
-
electronicrdacarrier
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:lnu-128375
-
https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-128375URI
-
https://doi.org/10.1515/hf-2024-0006DOI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:art swepub-publicationtype
Anmärkningar
-
Humins are heterogeneous and polydisperse furanic macromolecules derived from sugar biorefinery. Improving wood properties by humination has become of interest recently. This study examined the photodegradation stability of European pine sapwood microveneers modified with humins at different concentrations of citric acid (CA) and succinic acid (SA) as reaction catalysts, e.g., 1.5 %, 3 %, and 4.5 % wt.%. The photostability of huminated wood was assessed after 48 h, 96 h, and 144 h of exposure to the accelerated weathering test by means of mass loss and finite-span tensile strength. The results were compared with unmodified and also unweathered samples. The FT-IR spectroscopy showed apparent changes in the chemical structure of wood by humination modifications. The weight percentage gains of the samples increased with increasing the concentration of the catalyst. While no differences were observed between the samples after two weeks of the water leaching. The strength losses of weathered microveneers were, however, mostly reduced by humin-based formulas containing catalysts, where the microveneers modified with 1.5 % and 3 % CA showed respectively 32 % and 41 % lower strength loss values than the unmodified samples after 144 h of weathering. Overall, the results showed a high potential for humins to protect wood against photodegradation.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Hosseinpourpia, Reza,1983-Linnéuniversitetet,Institutionen för skog och träteknik (SOT),Michigan Technological University, USA,Forest Products(Swepub:lnu)rehoaa
(författare)
-
University of Northern British Columbia, CanadaInstitutionen för skog och träteknik (SOT)
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Holzforschung: Walter de Gruyter78:5, s. 283-2920018-38301437-434X
Internetlänk
Hitta via bibliotek
Till lärosätets databas