纺织学报 ›› 2021, Vol. 42 ›› Issue (10): 27-33.doi: 10.13475/j.fzxb.20201201207

• 纤维材料 • 上一篇    下一篇

Lyocell纤维纺丝浆粕溶解性的影响因素分析

潘忆乐1, 钱丽颖1, 徐纪刚2, 何北海1, 李军荣1()   

  1. 1.华南理工大学 轻工科学与工程学院, 广东 广州 510640
    2.中国纺织科学研究院有限公司生物源纤维制造技术国家重点实验室, 北京 100025
  • 收稿日期:2020-12-07 修回日期:2021-06-05 出版日期:2021-10-15 发布日期:2021-10-29
  • 通讯作者: 李军荣
  • 作者简介:潘忆乐(1996—),男,硕士生。主要研究方向为Lyocell纤维溶解浆粕的制备和性能优化。
  • 基金资助:
    国家重点研发计划项目(2017YFB0309501)

Analysis on factors influencing solution of Lyocell fiber spinning pulp

PAN Yile1, QIAN Liying1, XU Jigang2, HE Beihai1, LI Junrong1()   

  1. 1. School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
    2. State Key Laboratory of Biobased Fiber Manufacturing Technology, China Textile Academy, Beijing 100025, China
  • Received:2020-12-07 Revised:2021-06-05 Published:2021-10-15 Online:2021-10-29
  • Contact: LI Junrong

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摘要：

为探究Lyocell纤维纺丝浆粕溶解性的影响因素,对4种不同的溶解浆进行分析,研究了其化学组分、结晶度、聚合度以及纤维形态对溶解浆在N-甲基吗啉-N-氧化物(NMMO)中溶解性的影响。结果表明:浆粕的溶解主要历经悬浮阶段、溶胀阶段和溶解阶段;溶胀阶段纤维发生非均匀溶胀的比例越高,溶解的时间越长;当浆粕质量符合制备Lyocell纤维的原料标准时,纤维表面的微量木质素对浆粕溶解起主要作用;木质素通过吸附作用沉积在纤维表面,与纤维素通过氢键结合减弱纤维溶胀,同时疏水性的木质素会阻碍NMMO向纤维内部渗透,增加溶解时间。

关键词: Lyocell纤维, 溶解性, N-甲基吗啉-N-氧化物, 浆粕组分, 木质素分布

Abstract:

In order to explore the factors affecting the solubility of Lyocell fiber spinning pulp, four different dissolving pulps were analyzed to study the influence of their chemical composition, crystallinity, degree of polymerization and fiber morphology on the solubility of dissolving pulp in N-methylmorpholine-N-oxide (NMMO). The results showed that the dissolution of pulp experienced the suspension stage, swelling stage and dissolution stage. The higher the proportion of non-uniform swelling of fibers in the swelling stage, the longer the dissolution time. When the pulp quality meets the raw material standard for preparing Lyocell fiber, the trace lignin on the fiber surface plays a major role in dissolving the pulp. Lignin is deposited on the surface of the fiber through adsorption, and is combined with cellulose through hydrogen bonds to weaken fiber swelling. At the same time, hydrophobic lignin hindered the penetration of NMMO into the fiber and increased the dissolution time.

Key words: Lyocell fiber, solubility, N-methylmorpholine-N-oxide, pulp composition, lignin distribution

中图分类号: 

  • TS151

图1

DPFJ在NMMO中的溶解过程"

图2

4种溶解浆在NMMO中动态溶解图"

表1

4种溶解浆的主要化学组成及聚合度"

样品 α-纤维
素含
量/%		 聚合
度		 结晶
度/%		 灰分含
量/%		 铁离子质
量浓度/
(mg·kg-1)		 白度/
%
DPMG 93.63 671 82.37 0.12 2.62 93.63
DPFJ 93.02 667 82.49 0.16 11.87 88.21
DPADL 93.03 737 83.56 0.06 3.82 92.07
DPRD 92.37 662 80.32 0.07 3.11 91.78

图3

4种溶解浆的X射线衍射图"

图4

4种溶解浆的LSCM图像"

表2

4种溶解浆的纤维形态参数"

样品 重均长
度/mm		 长宽比 粗度/
(mg·m-1)		 细小纤维
含量/%		 弯曲指
数/%
DPMG 1.34 51.98 0.14 5.12 23.01
DPFJ 1.99 70.25 0.14 2.13 14.93
DPADL 1.37 53.22 0.19 7.86 21.34
DPRD 1.39 55.06 0.13 3.54 24.52

图5

4种溶解浆内纤维长度分布"

图6

4种溶解浆的纤维形貌扫描电镜照片(×300)"

[1] 赵家森, 王渊龙, 程博闻. 绿色纤维素纤维:Lyocell纤维[J]. 纺织学报, 2004, 25(5):124-126.
ZHAO Jiasen, WANG Yuanlong, CHENG Bowen. Green cellulose fibe:Lyocell fiber[J]. Journal of Textile Research, 2004, 25(5):124-126.
doi: 10.1177/004051755502500205
[2] 孙玉山, 徐纪刚, 李昭锐, 等. 新溶剂法纤维素纤维开发概况与展望[J]. 纺织学报, 2014, 35(2):126-132.
SUN Yushan, XU Jigang, LI Zhaorui, et al. Development survey and outlook of new solvent process regenerated cellulose fibers[J]. Journal of Textile Research, 2014, 35(2):126-132.
[3] 沈葵忠, 房桂干, 韩善明, 等. 溶解浆的质量指标及生产技术述评[J]. 林业工程学报, 2018, 3(5):12-19.
SHEN Kuizhong, FANG Guigan, HAN Shanming, et al. Quality specification of dissolving pulp and prospects of production technologies[J]. Journal of Forestry Engineering, 2018, 3(5):12-19.
doi: 10.12737/issue_58f9e0f00a07e4.12485634
[4] 王霞, 韩荣桓, 孙华鹏, 等. 浆粕质量对lyocell纤维生产及产品质量的影响[J]. 化工管理, 2019, 32(14):31-32.
WANG Xia, HAN Ronghuan, SUN Huapeng, et al. The effect of pulp quality on lyocell fiber production and product quality[J]. Chemical Management, 2019, 32(14):31-32.
[5] 杨革生, 魏孟媛, 杨彦菊, 等. 纤维素性质对纤维素溶液可纺性以及纤维性能的影响[J]. 纤维素科学与技术, 2019, 27(1):1-7.
YANG Gesheng, WEI Mengyuan, YANG Yanju, et al. Effect of cellulose on the spinnability of dope and the properties of Lyocell fiber[J]. Journal of Cellulose Science and Technology, 2019, 27(1):1-7.
[6] SAYYED A J, GUPTA D, DESHMUKH N A, et al. Influence of intensified cellulose dissolution process on spinning and properties of Lyocell fibres[J]. Chemical Engineering and Processing: Process Intensification, 2020, 155:108063.
doi: 10.1016/j.cep.2020.108063
[7] 王铁晗, 靳宏, 元伟, 等. 改性Lyocell纤维的研究开发进展[J]. 纺织导报, 2020(7):38-44.
WANG Tiehan, JIN Hong, YUAN Wei, et al. R&D progress of the modified Lyocell fibers[J]. China Textile Leader, 2020(7):38-44.
[8] ERDMAN A, KUPINSKI P, GABOR J, et al. Luminescent cellulose fibers modified with poly((9-carbazolyl)methylthiirane)[J]. Polymers, 2020, 12(10):2296-2296.
doi: 10.3390/polym12102296
[9] 石淑兰, 何福望. 制浆造纸分析与检测[M]. 北京: 中国轻工业出版社, 2003: 333-335.
SHI Shulan, HE Fuwang. Analysis and detection of pulp and paper[M]. Beijing: China Light Industry Press, 2003: 333-335.
[10] SAYYED A J, MOHITE L V, DESHMUKH N A, et al. Intensification of lyocell dissolution process and dope characteristics using pre-swelled cellulosic pulp[J]. Chemical Engineering and Processing: Process Intensification, 2020, 148:107826.
doi: 10.1016/j.cep.2020.107826
[11] 李庆春, 黄知清, 杨春波, 等. Lyocell纤维适用浆粕的研究[J]. 人造纤维, 2001, 31(5):4-7.
LI Qingchun, HUANG Zhiqing, YANG Chunbo, et al. Research on the suitable pulp of Lyocell fiber[J]. Artificial Fibre, 2001, 31(5):4-7.
[12] KIM S, JANG J. Effect of degree of polymerization on the mechanical properties of regenerated cellulose fibers using synthesized 1-allyl-3-methylimidazolium chloride[J]. Fibers and Polymers, 2013, 14(6):909-914.
doi: 10.1007/s12221-013-0909-6
[13] ISOGAI A, ATALLA R. H. Dissolution of cellulose in aqueous NaOH solutions[J]. Cellulose, 1998, 5(4):309-319.
doi: 10.1023/A:1009272632367
[14] REEVE D W. Imaging wood pulp fiber surface lignin by fluorescence confocal laser scanning microscopy[J]. Journal of Tianjin University of Science & Technology, 2004, 19(2):72-80.
[15] MAXIMOVA N, OSTERBERG M, KOLJONEN K, et al. Lignin adsorption on cellulose fibre surfaces: effect on surface chemistry, surface morphology and paper strength[J]. Cellulose, 2001, 8(2):113-125.
doi: 10.1023/A:1016721822763
[16] MAXIMOVA N, STENLUS P, SALMI J. Lignin uptake by cellulose fibres from aqueous solutions[J]. Nordic Pulp and Paper Research Journal, 2004, 19(2):135-145.
doi: 10.3183/npprj-2004-19-02-p135-145
[17] PERRZ D, RUGGIERO R, MORAIS L C, et al. Theoretical and experimental studies on the adsorption of aromatic compounds onto cellulose[J]. Langmuir, 2004, 20(8):3151-3158.
doi: 10.1021/la0357817
[18] SESCOUSSE R, SMACCHIA A, BUDTOVA T. Influence of lignin on cellulose-NaOH-water mixtures properties and on aero cellulose morphology[J]. Cellulose, 2010, 17(6):1137-1146.
doi: 10.1007/s10570-010-9448-0
[19] 李春花, 徐纪刚, 程春祖, 等. 纤维素浆粕在NMMO/H2O中的溶胀行为研究[J]. 纺织学报, 2014, 35(2):116-120.
LI Chunhua, XU Jigang, CHENG Chunzu, et al. Study on swelling behaviors of cellulose pulp in NMMO/H2O[J]. Journal of Textile Research, 2014, 35(2):116-120.
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