Influence of process parameters on the structure formation of man-made cellulosic fibers from ionic liquid solution

Anne Michud, Michael Hummel, Herbert Sixta*

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

26 Sitaatiot (Scopus)

Abstrakti

The influence of dry-jet wet spinning parameters on the production of man-made cellulosic fibers from 13 wt % cellulose/1,5-diazabicyclo[4.3.0]non-5-ene acetate solutions was investigated. The spinneret nozzle diameter, extrusion velocity, draw ratio, and coagulation bath temperature were the studied parameters. The production of highly oriented fibers was favored by selecting higher extrusion velocity and lower spinneret diameter. A spinneret size of 100 μm and a draw ratio of 6 were sufficient to highly orient the cellulose macromolecules and achieve tenacities above 40 cN/tex (600 MPa). Total orientation assessed via birefringence measurement, tenacity, and Young's modulus values reached a plateau at a draw of 6 and no further development in properties was observed. A temperature of the aqueous coagulation bath of 15°C slightly promoted greater orientation of the fibers by hampering structural changes of the cellulose macromolecules in the nascent solid fibers. Furthermore, the determination of the elongational viscosity of the liquid thread via the measurement of radial force tensor was tested and showed promising results.

AlkuperäiskieliEnglanti
Artikkeli43718
JulkaisuJournal of Applied Polymer Science
Vuosikerta133
Numero30
DOI - pysyväislinkit
TilaJulkaistu - 10 elokuuta 2016
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

Sormenjälki

Sukella tutkimusaiheisiin 'Influence of process parameters on the structure formation of man-made cellulosic fibers from ionic liquid solution'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

Siteeraa tätä