miun.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • 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
Modification of softwood kraft pulp requiring less energy in tissue paper production
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för kemiteknik.
2019 (engelsk)Konferansepaper, Oral presentation with published abstract (Fagfellevurdert)
Abstract [en]

Modification of softwood kraft pulp by the addition of either polysulfide (PS) or sodium borohydride (NaBH4) has been shown to increase pulp yield due to a higher retention of hemicellulose. The modified pulps showed higher tensile index, especially at lower refining. It also showed a greater porosity of the fibre wall, indicating an increase in the swelling potential of the fibres thus helping to increase fibre flexibility, increase joint strength between the fibres and to raise the tensile index. However, the swelling increase associated with the higher hemicellulose content could also make dewatering more challenging because of the higher water retention of pulp. But recent studies showed the positive influence of increase pulp yield dominates over the negative influence of the higher hemicellulose content on dewatering properties, especially at lower refining. Studies simulating full-scale tissue dewatering conditions showed that pulps with higher hemicellulose content had a higher tensile index at the same dryness which was achieved in a shorter dwell-time. A given tensile index was also achieved with less refining energy. Therefore modification of the kraft pulping process is now a way to give high quality fibres for tissue paper production with less refining energy and lower drying energy costs.

sted, utgiver, år, opplag, sider
2019.
Emneord [en]
Softwood pulp, Tissue paper
HSV kategori
Identifikatorer
URN: urn:nbn:se:miun:diva-36212OAI: oai:DiVA.org:miun-36212DiVA, id: diva2:1318348
Konferanse
Tissue World Milan Conference, Milan, Italy, March 25-27, 2019
Forskningsfinansiär
Knowledge Foundation
Merknad

Attended as a speaker at Technical session of Fibers

Tilgjengelig fra: 2019-05-27 Laget: 2019-05-27 Sist oppdatert: 2019-06-03bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Personposter BETA

Rahman, Hafizur

Søk i DiVA

Av forfatter/redaktør
Rahman, Hafizur
Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric

urn-nbn
Totalt: 66 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • 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