蒽醌助剂对乙二醇溶剂脱胶苎麻纤维性能的影响

doi:10.13475/j.fzxb.20200101308

纺织学报 ›› 2020, Vol. 41 ›› Issue (11): 81-88.doi: 10.13475/j.fzxb.20200101308

蒽醌助剂对乙二醇溶剂脱胶苎麻纤维性能的影响

屈永帅¹^,², 施朝禾¹^,², 张瑞云¹^,²^,³(), 赵树元¹^,², 刘柳³

1.东华大学纺织学院, 上海 201620
2.东华大学纺织面料技术教育部重点实验室, 上海 201620
3.东华大学纺织科技创新中心, 上海 201620

收稿日期:2020-01-08 修回日期:2020-03-10 出版日期:2020-11-15 发布日期:2020-11-26
通讯作者: 张瑞云
作者简介:屈永帅(1989—),女,博士。主要研究方向为麻类有机溶剂脱胶及其机制分析。
基金资助:
中央高校基本科研业务费专项资金资助项目(EG2018006);东华大学启动研究基金项目(287-07-005707)

Effect of anthraquinone additive on properties of glycol solvent degummed ramie fibers

QU Yongshuai¹^,², SHI Zhaohe¹^,², ZHANG Ruiyun¹^,²^,³(), ZHAO Shuyuan¹^,², LIU Liu³

1. College of Textiles, Donghua University, Shanghai 201620, China
2. Key Laboratory of Textile Science & Technology,Ministry of Education, Donghua University, Shanghai 201620, China
3. Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China

Received:2020-01-08 Revised:2020-03-10 Online:2020-11-15 Published:2020-11-26
Contact: ZHANG Ruiyun

摘要/Abstract

摘要：

为解决苎麻在乙二醇有机溶剂脱胶中纤维易被氧化而导致性能下降的问题,在乙二醇溶剂中添加助剂蒽醌对苎麻进行脱胶,并对蒽醌不同添加量下制得的纤维进行结构和性能表征。结果表明:纤维中半纤维素含量随蒽醌添加量的增加而升高,纤维的聚合度、结晶度、物理力学性能先升高后降低,纤维的残胶率和线密度先降低后升高;当蒽醌质量分数为0.3% 时,这些性能均达到最佳值,此时纤维的聚合度、结晶度、制成率、断裂强度、断裂伸长率、断裂功比不加蒽醌时分别提高了7.32%、20.53%、1.46%、9.55%、6.89%、33.33%,纤维的残胶率、线密度比不加蒽醌时分别降低了17.91%、7.24%。

关键词: 苎麻, 乙二醇, 蒽醌, 脱胶, 纤维素, 半纤维素, 木质素

Abstract:

In order to solve the problem of property degradation of ramie fiber due to easy oxidation during degumming process using glycol organic solvent, anthraquinone (AQ) as degumming additive was used with glycol solvent. The properties of fibers prepared with different amounts of AQ were characterized, including polymerization degree, crystallinity, hemicellulose contents, physical and mechanical properties, and so on. The results show that the hemicellulose contents increase when AQ concentration arises. Meanwhile, the polymerization degree value, crystallinity, physical and mechanical properties of fiber show formation of peaks with the increase of AQ content. Under the best AQ mass fraction of 0.3%, the polymerization degree value, crystallinity, yield, tenacity, elongation and fracture work of fiber increase by 7.32%, 20.53%, 1.46%, 9.55%, 6.89%, 33.33%, respectively, while the residual gum content and density of fiber decrease by 17.91%, 7.24%, respectively.

Key words: ramie, glycol, anthraquinone, degumming, cellulose, hemicellulose, lignin

中图分类号:

S563.1

屈永帅, 施朝禾, 张瑞云, 赵树元, 刘柳. 蒽醌助剂对乙二醇溶剂脱胶苎麻纤维性能的影响[J]. 纺织学报, 2020, 41(11): 81-88.

QU Yongshuai, SHI Zhaohe, ZHANG Ruiyun, ZHAO Shuyuan, LIU Liu. Effect of anthraquinone additive on properties of glycol solvent degummed ramie fibers[J]. Journal of Textile Research, 2020, 41(11): 81-88.

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类型	纤维素	半纤维素	木质素	其他	制成率
未加蒽醌	95.98	2.28	0.42	1.32	74.2
添加蒽醌	96.70	2.69	0.33	0.28	75.3

阶段	蒽醌质量分数/%	残胶率/%	制成率/%	半纤维素含量/%	线密度/dtex	断裂强度/(cN·dtex^-1)	断裂伸长率/%
升温阶段	0	7.82	77.34	4.53	7.23	6.27	2.01
(0~60 min)	0.3	6.23	75.93	3.96	6.99	6.02	2.32
保温阶段	0	4.02	74.20	2.28	6.88	6.44	2.71
(60~120 min)	0.3	3.30	75.10	2.76	6.39	7.12	2.92

蒽醌助剂对乙二醇溶剂脱胶苎麻纤维性能的影响

Effect of anthraquinone additive on properties of glycol solvent degummed ramie fibers

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