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Multifilament Fibers Based on Dissolution of Cellulose in NaOH/Urea Aqueous Solution: Structure and Properties


  • This work was supported by the National High Technology Research and Development Program of China (863 Program, 2003AA333040), and a major grant fom the National Natural Science Foundation of China (59933070) and the United States Department of Energy (DEFG0286ER45237.023 and DEFG0299ER45760).


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High-quality cellulose multifilaments (see figure) are spun using a preliminary pilot apparatus, from the cellulose dope in an NaOH and urea aqueous solution precooled to –12 °C, by using a low-cost, simple, and environmentally friendly process. Small-angle X-ray scattering patterns indicate that the orientation of the multifilaments increase with a drawing process, leading to the improvement of their tensile strength.

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