Effect of wet spinning parameters on the properties of novel cellulosic fibres

Marianna Vehviläinen (Corresponding Author), Taina Kamppuri, Monika Rom, Jaroslaw Janicki, Danuta Ciechañska, Stina Grönqvist, Matti Siika-Aho, Kristina Elg Christoffersson, Pertti Nousiainen

Research output: Contribution to journalArticleScientificpeer-review

47 Citations (Scopus)

Abstract

Novel cellulose fibres (Biocelsol) were spun by traditional wet spinning technique from the alkaline solution prepared by dissolving enzyme treated pulp directly into aqueous sodium zincate (ZnO/NaOH). The spinning dope contained 6 wt.% of cellulose, 7.8 wt.% of sodium hydroxide (NaOH) and 0.84 wt.% of zinc oxide (ZnO). The fibres were spun into 5% and 15% sulphuric acid (H2SO4) baths containing 10% sodium sulphate (Na2SO4). The highest fibre tenacity obtained was 1.8 cNdtex−1 with elongation of 15% and titre of 1.4 dtex. Average molecular weights and shape of molecular weight distribution curves of the celluloses from the novel wet spun cellulosic fibre and from the commercial viscose fibre were close to each other.
Original languageEnglish
Pages (from-to)671-680
Number of pages10
JournalCellulose
Volume15
Issue number5
DOIs
Publication statusPublished - 2008
MoE publication typeA1 Journal article-refereed

Keywords

  • Biocelsol
  • Cellulases
  • Cellulosic fibres
  • Directly alkaline soluble cellulose
  • Dissolving pulp
  • Enzymatic treatment of cellulose

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