| 高半纤维素浆粕制备Lyocell纤维的研究 |
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| 引用本文： | 张慧茹,刘小云,李冬霜,代大庆,李荣先.高半纤维素浆粕制备Lyocell纤维的研究[J].合成纤维工业,2008,31(2):24-27. |
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| 作者姓名： | 张慧茹 刘小云 李冬霜 代大庆 李荣先 |
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| 摘 要： | 采用半纤维素质量分数21%的高半纤维素浆粕在N-甲基吗琳-N-氧化物(NMMO)水溶液中制备Lyocell纤维,并与半纤维素质量分数为10%的高α-纤维素浆粕的可纺性进行了对比。结果表明:高半纤维素浆粕在溶剂NMMO·H_2O中更易溶解,其过滤性能和可纺性能好,可在较高浆粕浓度下纺丝,制备成Lyo- cell纤维的产率高,且能提高Lyocell纤维的力学性能。高半纤维素浆液的稳定性能略低,在溶剂回收中需要消耗较多的双氧水进行氧化回收溶剂NMMO。
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| 关 键 词： | 半纤维素 α-纤维素 溶剂法纤维素纤维 可纺性 力学性能 |
Preparation of Lyocell fiber from high hemicellulose pulp |
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| Zhang Huiru,Liu Xiaoyun,Li Dongshuang,Dai Daqing,Li Rongxian.Preparation of Lyocell fiber from high hemicellulose pulp[J].China Synthetic Fiber Industry,2008,31(2):24-27. |
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| Authors: | Zhang Huiru Liu Xiaoyun Li Dongshuang Dai Daqing Li Rongxian |
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| Abstract: | Lyocell fiber was prepared from the spinning solution of high hemicellulose pulp containing 21% hemicellulose by mass fraction dissolving in N-methlymorpholine-N-oxide(NMMO)aqueous solution.The spinnability of the high hemicellulose pulp was compared with that of highα-cellulose pulp containing 10% hemicellulose by mass fraction.The results showed that the high hemicellulose pulp was much easier to be dissolved in NMMO·H_2O solution and was better in the filtration performance and spinnability.The high hemicellulose pulp can be spun into fibers with high yield at high pulp concentration and improve the me- chanical properties of the Lyocell fiber.However,the high hemicellulose spinning solution consumed more hydrogen peroxide for NMMO recovery due to its low stability. |
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| Keywords: | hemicellulose α-cellulose solvent-spun cellulose fiber spinnability mechanical properties |
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