二醋酸纤维素纤维纺丝溶液的动态黏弹性

纺织学报 ›› 2013, Vol. 34 ›› Issue (3): 5-8.

二醋酸纤维素纤维纺丝溶液的动态黏弹性

于勤^1,2, 张丽³, 曹建华³, 王强¹, 范雪荣¹

1. 生态纺织教育部重点实验室（江南大学）
2. 沙洲职业工学院纺织工程系
3. 南通酸酸纤维有限公司技术中心

收稿日期:2012-02-14 修回日期:2012-05-31 出版日期:2013-03-15 发布日期:2013-03-07
通讯作者: 范学荣 E-mail:wxfxr@163.com
基金资助:
教育部长江学者和创新团队发展计划；江苏高校优势学科建设工程资助项目；江苏省“青蓝工程”资助项目

Dynamic viscoelasticity of cellulose diacetate fiber spinning solution

YU QIN

Received:2012-02-14 Revised:2012-05-31 Online:2013-03-15 Published:2013-03-07
Contact: YU QIN E-mail:wxfxr@163.com

摘要/Abstract

摘要： 采用Physica MCR101流变仪考察了二醋酸纤维素（CDA）纺丝溶液浓度和温度对其动态黏弹性的影响。结果表明：在一定的角频率下，随着CDA纺丝溶液浓度的升高或温度的降低，体系的储能模量（G/）、损耗模量（G//）和复数黏度（η*）均呈现增加趋势，但损耗角正切（tanδ）逐渐降低。并且发现浓度为27.8%或者温度为59℃的CA纺丝液，随着角频率的增加，体系的G/、和G//相应增加，而tanδ和η*则随之降低。关键词二醋酸纤维素; 动态黏弹性; 储能模量; 损耗模量; 损耗角正切; 复数黏度

关键词: 二醋酸纤维素, 动态黏弹性, 储能模量, 损耗模量, 损耗角正切, 复数黏度

Abstract: Effects of spinning dope concentration and temperature on dynamic viscoelasticity of cellulose diacetate were studied by Physica MCR101 rheoviscometer. The results demonstrated that, at the same angular frequency, when increasing dope concentration or reducing dope temperature, the storage modulus（G/）, loss modulus （G//）,as well as complex viscosity （η*）appeared incremental trends, but the loss tangent decreased. Meanwhile, it was found that when dope concentration was 27.8% or dope temperature was 59℃,with increasing of angular frequency, G/、and G//was upward, but tanδandη* was downward.

Key words: celluose diacetate, dynamic viscoelasticity, storage modulus, loss modulus, loss tangent, complex viscosity

中图分类号:

O636.11

于勤张丽曹建华王强范雪荣. 二醋酸纤维素纤维纺丝溶液的动态黏弹性[J]. 纺织学报, 2013, 34(3): 5-8.

YU QIN. Dynamic viscoelasticity of cellulose diacetate fiber spinning solution[J]. JOURNAL OF TEXTILE RESEARCH, 2013, 34(3): 5-8.

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