Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Characterisation of the undissolved residuals in CMC-solutions
KTH, Tidigare Institutioner, Fiber- och polymerteknologi.
2004 (engelsk)Inngår i: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 11, nr 2, s. 195-202Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The undissolved fibre and gel residuals that had not completely reacted to form fully dissolved carboxy-methyl cellulose (CMC) in the production of CMC were studied to clarify the reactivity of wood components in the pulp. The undissolved residuals, the pulp and the CMC were therefore analysed on the fibre level, the cell-wall level and the chemical composition level. The results may be interpreted as indicating that the presence of undissolved residuals in the CMS was not due to any chemical difference. The undissolved residuals were shown to consist mainly of swollen cell wall parts and some whole wood cells, mainly thick-walled compression wood and summerwood cells. They react more slowly in the mercerisation and etherification, probably because of a greater diffusion resistance due to their larger dimensions or to a more dense structure. These cells are assumed to be less accessible for chemical penetration, but they may also contain supramolecular structures that slow down the CMC reaction.

sted, utgiver, år, opplag, sider
2004. Vol. 11, nr 2, s. 195-202
Emneord [en]
carbohydrate analysis (CMC), carboxymethyl cellulose, fibre, IR spectroscopy, microscopy, STFI Fibermaster(TM), spruce sulfite pulp, undissolved residuals, wood cells
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-44851DOI: 10.1023/B:CELL.0000025390.81603.40ISI: 000221057300007Scopus ID: 2-s2.0-2942644648OAI: oai:DiVA.org:kth-44851DiVA, id: diva2:451709
Merknad
QC 20111026Tilgjengelig fra: 2011-10-26 Laget: 2011-10-25 Sist oppdatert: 2017-12-08bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstScopus

Søk i DiVA

Av forfatter/redaktør
Lennholm, Helena
Av organisasjonen
I samme tidsskrift
Cellulose (London)

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 90 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf