纤维素/海藻酸钙共混纤维的制备及其性能

doi:10.13475/j.fzxb.20210204706

纺织学报 ›› 2021, Vol. 42 ›› Issue (12): 15-20.doi: 10.13475/j.fzxb.20210204706

纤维素/海藻酸钙共混纤维的制备及其性能

陈子晗¹, 姚勇波²(), 生俊露², 颜志勇², 张玉梅³, 王华平³

1.嘉兴南湖学院时尚设计学院, 浙江嘉兴 314001
2.嘉兴学院浙江省纱线材料成形与复合加工技术研究重点实验室, 浙江嘉兴 314001
3.东华大学纤维材料改性国家重点实验室, 上海 201620

收稿日期:2021-02-20 修回日期:2021-09-13 出版日期:2021-12-15 发布日期:2021-12-29
通讯作者: 姚勇波
作者简介:陈子晗(1989—),女,硕士。主要研究方向为天然高分子的溶解与再生。
基金资助:
浙江省自然科学基金项目(LQ17E030002);国家自然科学基金项目(21704034);浙江省纱线材料成形与复合加工技术研究重点实验室开放基金项目(MTC-2020-11)

Preparation and properties of cellulose/calcium alginate blend fiber

CHEN Zihan¹, YAO Yongbo²(), SHENG Junlu², YAN Zhiyong², ZHANG Yumei³, WANG Huaping³

1. Fashion Design Academy, Jiaxing Nanhu University, Jiaxing, Zhejiang 314001, China
2. Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province, Jiaxing University, Jiaxing, Zhejiang 314001, China
3. State Key Laboratory of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China

Received:2021-02-20 Revised:2021-09-13 Published:2021-12-15 Online:2021-12-29
Contact: YAO Yongbo

摘要/Abstract

摘要：

针对纤维素纤维易燃烧的问题,首先以离子液体1-烯丙基-3-甲基咪唑氯盐([AMIM]Cl)为溶剂共溶解纤维素与海藻酸,然后以氯化钙溶液为凝固浴,采用干喷湿法纺丝制备了纤维素/海藻酸钙共混纤维。研究了纤维素/海藻酸钙组分比对共混纤维结构和性能的影响。结果表明:纤维素/海藻酸钙共混纤维结构致密,二者之间存在氢键相互作用;虽然海藻酸钙的存在使共混纤维的力学性能降低,但当海藻酸钙质量分数为30%时,共混纤维的断裂强度为123 MPa,离火自熄时间仅为1.1 s,表现出优良的离火自熄特性;纤维素/海藻酸钙共混纤维的吸湿平衡回潮率为7.33%~7.75%,具有类似再生纤维素纤维的优良吸湿性能与服用性能。

关键词: 纤维素, 海藻酸钙, 干喷湿法纺丝, 阻燃纤维, 离子液体

Abstract:

In order to reduce the flammability of cellulose fibers, ionic liquid 1-allyl-3-methylimidazole chloride ([AMIM]Cl) was used as co-solvent for cellulose and alginic acid. Then, the cellulose/calcium alginate blend fiber was prepared with calcium chloride solution as the coagulation bath by dry-jet wet spinning. The effect of cellulose/calcium alginate blend ratio on the structure and properties of the fibers were studied. The results show that the cross-section of the blend fibers is dense, and the hydrogen bond interactions exist between cellulose and calcium alginate molecules. Despite the fact of the mechanical strength of the blend fibers decreases with the increase of calcium alginate content, the tensile strength reaches 123 MPa when the content of calcium alginate is 30%, and the self-extinguishing time from fire of this fiber is only 1.1 s, indicating excellent self-extinguishing property. In addition, the moisture regain of cellulose/calcium alginate blend fibers is 7.33%-7.75%, representing good hygrophilic property and wearability for regenerated cellulose fibers.

Key words: cellulose, calcium alginate, dry-jet wet spinning, flame retardant fiber, ionic liquid

中图分类号:

TQ341.5

陈子晗, 姚勇波, 生俊露, 颜志勇, 张玉梅, 王华平. 纤维素/海藻酸钙共混纤维的制备及其性能[J]. 纺织学报, 2021, 42(12): 15-20.

CHEN Zihan, YAO Yongbo, SHENG Junlu, YAN Zhiyong, ZHANG Yumei, WANG Huaping. Preparation and properties of cellulose/calcium alginate blend fiber[J]. Journal of Textile Research, 2021, 42(12): 15-20.

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样品编号	海藻酸钙质量分数/%	凝固浴组成	牵伸倍数
1^#	0	水	4
2^#	10	5%氯化钙溶液	4
3^#	20	5%氯化钙溶液	4
4^#	30	5%氯化钙溶液	4

样品编号	直径/ μm	断裂强度/MPa	初始模量/GPa	断裂伸长率/%
1^#	73.2±4.3	195±22.9	3.41±0.48	14.7±2.3
2^#	69.1±5.2	189±31.8	3.14±0.68	15.9±3.1
3^#	63.4±6.7	139±34.7	3.01±0.54	10.4±1.9
4^#	65.9±4.9	123±35.9	2.58±0.73	8.7±1.1

纤维素/海藻酸钙共混纤维的制备及其性能

Preparation and properties of cellulose/calcium alginate blend fiber

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