Cellulose-lignin composite fibres as precursors for carbon fibres. Part 1 – Manufacturing and properties of precursor fibres

Mikaela Trogen, Nguyen Duc Le, Daisuke Sawada, Chamseddine Guizani, Tainise Vergara Lourençon, Leena Pitkänen, Herbert Sixta, Riddhi Shah, Hugh O'Neill, Mikhail Balakshin, Nolene Byrne, Michael Hummel*

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

5 Sitaatiot (Scopus)

Abstrakti

Cellulose-lignin composite fibres were spun from ionic liquid (IL) solutions by dry-jet wet spinning. Birch pre-hydrolysed Kraft (PHK) pulp and organosolv beech (BL) or spruce lignin (SL) were dissolved in the IL 1,5-diazabicyclo[4.3.0]non-5-enium acetate ([DBNH]OAc) to prepare spinning dopes. Fibres with lignin concentrations of up to 50 % were spun successfully. The fibres were analysed focusing on important properties for the production of carbon fibres (CF). Due to the higher molar mass of the SL compared to the BL, SL showed higher stability in the spinning process, giving higher lignin content in the final fibres. The CF yield after carbonization increased with increasing lignin content. The higher carbon content of SL compared to BL, resulted in moderately higher CF yield of the SL fibres, compared to fibres with BL. Overall, the produced cellulose-lignin composite fibres show great potential as precursors for CF production.

AlkuperäiskieliEnglanti
Artikkeli117133
Sivumäärä10
JulkaisuCarbohydrate Polymers
Vuosikerta252
DOI - pysyväislinkit
TilaJulkaistu - 15 tammikuuta 2021
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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