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

RichHTML

19

PDF (PC)

159

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.
[1] 潘忆乐 钱丽颖 徐纪刚 何北海 李军荣. Lyocell纤维纺丝浆粕种类对溶解性的影响[J]. , 2021, 42(10): 0-0.
[2] 靳宏, 张玥, 张玉梅, 王华平. 基于分子模拟预判Lyocell纤维原液着色体系中溶剂的稳定性[J]. 纺织学报, 2021, 42(10): 1-7.
[3] 林生根, 刘晓辉, 苏晓伟, 何聚, 任元林. 新型植酸基阻燃剂改性Lyocell纤维与织物的制备及其性能[J]. 纺织学报, 2021, 42(07): 25-30.
[4] 黄伟, 程春祖, 张嘉煜, 张晨曦, 程敏, 徐纪刚, 刘云崇. 高原纤化Lyocell纤维的制备及其性能[J]. 纺织学报, 2021, 42(06): 41-45.
[5] 王纯怡, 吴伟, 王健, 徐红, 毛志平. C.I.分散棕19在超临界CO2及水中溶解性的分子动力学模拟[J]. 纺织学报, 2020, 41(09): 95-101.
[6] 元伟, 姚勇波, 张玉梅, 王华平. 制备Lyocell纤维用纤维素浆粕的碱性酶处理工艺[J]. 纺织学报, 2020, 41(07): 1-8.
[7] 程筒, 姚勇波, 陈忠丽, 靳宏, 吴开建, 王乐军, 刘怡宁, 张玉梅. 基于N-甲基吗啉-N-氧化物溶剂制备聚芳砜酰胺/纤维素阻燃纤维[J]. 纺织学报, 2019, 40(07): 1-76.
[8] 钱璐敏, 张斌. 可溶性止血医用棉纱布的制备及其性能[J]. 纺织学报, 2019, 40(05): 102-106.
[9] 朱维维 肖红 施楣梧. 超临界二氧化碳流体辅助下的纺织品整理技术研究进展[J]. 纺织学报, 2017, 38(11): 177-184.
[10] 王乐军 刘怡宁 房迪 李增俊 吕佳滨. Lyocell纤维的国内外研发现状与发展方向[J]. 纺织学报, 2017, 38(04): 164-170.
[11] 孙伟泽 张丽平 李敏 杜长森 王春霞 付少海. 炭黑/Lyocell纤维素膜的制备及其性能[J]. 纺织学报, 2017, 38(03): 28-32.
[12] 钟智丽 朱敏 张宏杰 翁琦. 大麻纤维在氯化锂/N,N-二甲基乙酰胺溶解体系中的溶解特性[J]. 纺织学报, 2016, 37(11): 92-97.
[13] 孙伟泽 李敏 张丽平 王春霞 付少海 籍晓倩. N-甲基吗啉-N-氧化物基超细炭黑的制备[J]. 纺织学报, 2016, 37(11): 75-79.
[14] 燕敬雪, 张瑞云. 活化方法对废旧涤/棉混纺织物回收利用的影响[J]. 纺织学报, 2012, 33(5): 50-55.
[15] 白刚, 李蓓蓓, 桑燕霞, 刘艳春. 红曲红素的理化性能[J]. 纺织学报, 2012, 33(2): 59-62.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
京ICP备14006648号　 京公网安备11010502044800号
版权所有 © 2021 《纺织学报》编辑部
地址： 北京市朝阳区延静里中街3号主楼6层《纺织学报》杂志社　邮政编码：100025　
电话：010-65017711,65917740　传真：010-65016539　Email:fangzhixuebao@vip.126.com
本系统由北京玛格泰克科技发展有限公司设计开发