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Title

大麻纤维素的提取及其纳米纤维的制备与表.

Authors

孔伟帅; 孙颖; 王佳怡; 李端鑫

Abstract

In order to improve the high value-added application of hemp cellulose > the hemp fiber was dissolved in the solvent system of lithium chloride/N and N-dimethylacetamide (LiCl/DMAc) to obtain cellulose solution, which was blended with polyacrylonitrile solution to obtain electrostatic spinning solution, thereby preparing nanofibers containing hemp cellulose* The dissolution process of hemp cellulose was optimized, by single factor and. orthogonal experiment* The results show that the best process for dissolving hemp cellulose in LiCl/DMAc solvent system is as follows: LiCl mass fraction is 12%, the solid-liquid ratio of hemp to LiCl/DMAc solvent is 1 ：180, heating temperature is 120 °C and heating time is 3 h. The diameter of nanofibers prepared by electrospinning method is 200 ~ 280 nm, the breaking strength is (5. 51 ± 0. 42) cN, and the breaking elongation is (12. 97 ± 7. 42) %. The nanofiber membrane has smooth surface uniform fiber diameter distribution and excellent mechanical properties which provides some reference for dissolving cellulose and provides a basis for the research and development of new nano fibers containing hemp cellulose.

Subjects

LITHIUM chloride; CELLULOSE; HEMP; POLYACRYLONITRILES; CELLULOSE fibers; NANOFIBERS; RESEARCH & development

Publication

Wool Textile Journal, 2024, Vol 52, Issue 12, p9

ISSN

1003-1456

Publication type

Academic Journal

DOI

10.19333/j.mfkj.20240407107