pp 1–19 | Cite as

TBAH/Urea/H2O solvent for room temperature wet-spinning of cellulose and optimization of drawing process

  • Jingyu Zhang
  • Mengdie Wang
  • Wei Li
  • Wei WeiEmail author
  • Jinyang Li
  • Man Jiang
  • Yong Wang
  • Zuowan ZhouEmail author
Original Research


TBAH(tetra-butylammonium hydroxide)/Urea/H2O solvent has been applied for the solvent wet-spinning of cellulose, due to its room temperature operation, good stability and spinnability of the cellulose solution, as well as the unconditional string of low DP (degree of polymerization) for dissolving cellulose. Most importantly, it is found that the stability of the cellulose solution can be dramatically improved by the addition of urea, as indicated by the rheological property of the cellulose solution. With the help of urea, it has been preliminarily studied about the effect of the drawing process, including tnf (time for the formation of nascent fiber in coagulation bath), δ1 (primary drawing ratio) and δ2 (secondary drawing ratio), on the orientation structure and the mechanical performances of the spun fibers. The correlations between the drawing process and the mechanical performance have been established by mathematical models. The tensile strength of the spun fibers improved up to ca. 96% (1.3 cN/dtex) through our optimization of the drawing process. Morphological observations indicated that the spun fibers exhibited regular shape with a circular cross-section. X-ray diffraction and scattering analysis demonstrated that the orientation structure of fibers spun by TBAH/Urea/H2O is similar to that of the commercial viscose and Tencel fibers.

Graphic abstract


Cellulose fiber Wet-spinning TBAH Urea Aqueous solvent 



This work is financially supported by the Science and Technology Planning Project of Sichuan Province (Grant Nos. 2018HH0087 and 2018GZ0462) and the Fundamental Research Funds for the Central Universities (No. 2682016CX069). In addition, we are grateful for the 2D wide angle X-ray diffraction and small angle X-ray scattering measurements provided by “Ceshigo” corporation (

Supplementary material

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Supplementary material 3 (DOCX 338 kb)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduChina

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