Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Silica-rich regenerated cellulose fibers enabled by delayed dissolution of silica nanoparticles in strong alkali using zinc oxide
RISE Research Institutes of Sweden, Materials and Production, Chemistry, Biomaterials and Textiles.ORCID iD: 0000-0001-7178-5202
RISE Research Institutes of Sweden, Materials and Production, Chemistry, Biomaterials and Textiles.ORCID iD: 0000-0002-0125-063x
RISE Research Institutes of Sweden, Bioeconomy and Health, Material and Surface Design.ORCID iD: 0000-0002-2624-5693
2021 (English)In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 264, article id 118032Article in journal (Refereed) Published
Abstract [en]

Silica nanoparticles (SNPs) dissolve in alkaline media, which limits their use in certain applications. Here, we report a delayed dissolution of SNPs in strong alkali induced by zinc oxide (ZnO), an additive which also limits gelation of alkaline cellulose solutions. This allows incorporating high solid content of silica (30 wt%) in cellulose solutions with retention of their predominant viscous behavior long enough (ca. 180 min) to enable fiber wet spinning. We show that without addition of ZnO, silica dissolves completely, resulting in strong gelation of cellulose solutions that become unsuitable for wet spinning. With an increase of silica concentration, gelation of the solutions occurs faster. Employing ZnO, silica-rich regenerated cellulose fibers were successfully spun, possessing uniform cross sections and smooth surface structure without defects. These findings are useful in advancing the development of functional man-made cellulose fibers with incorporated silica, e.g., fibers with flame retardant or self-cleaning properties. © 2021 The Author(s)

Place, publisher, year, edition, pages
Elsevier Ltd , 2021. Vol. 264, article id 118032
Keywords [en]
Cold alkali, Dissolution, Regenerated cellulose, Silica nanoparticles, Wet spinning, Zinc oxide, Gelation, II-VI semiconductors, Natural fibers, Spinning (fibers), Surface structure, Textile fibers, Alkaline cellulose, Alkaline media, Cellulose fiber, Cellulose solutions, High solid content, Viscous behaviors, Wet-spinning, Cellulose, Dissolving
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:ri:diva-52959DOI: 10.1016/j.carbpol.2021.118032Scopus ID: 2-s2.0-85103953605OAI: oai:DiVA.org:ri-52959DiVA, id: diva2:1546869
Note

Funding details: Stiftelsen Åforsk, 19-523; Funding text 1: We are grateful to the ?Forsk Foundation for financial support to this study (grant number 19-523).; Funding text 2: We are grateful to the ÅForsk Foundation for financial support to this study (grant number 19-523 ).

Available from: 2021-04-23 Created: 2021-04-23 Last updated: 2023-06-02Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Nechyporchuk, OleksandrHanna, UlmeforsTeleman, Anita

Search in DiVA

By author/editor
Nechyporchuk, OleksandrHanna, UlmeforsTeleman, Anita
By organisation
Chemistry, Biomaterials and TextilesMaterial and Surface Design
In the same journal
Carbohydrate Polymers
Polymer Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 58 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf