纺织学报 ›› 2009, Vol. 30 ›› Issue (01): 1-4.

• 纤维材料 •    下一篇

纤维素氨基甲酸酯溶液的流变性能

哈丽丹·买买提;吾满江·艾力   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-01-15 发布日期:2009-01-15

Rheological behavior of cellulose carbamate solution

Halidan MAMAT;Wumanjiang   

  • Received:1900-01-01 Revised:1900-01-01 Online:2009-01-15 Published:2009-01-15

摘要: 探讨纤维素氨基甲酸酯(CC)溶液的流变性能及其影响因素.结果表明:含氮量小于3.57%CC氢氧化钠溶液,在所研究的CC浓度范围内表现为切力稀型流体,非牛顿指数小于1,且随着CC溶液浓度的增加而减小;表观黏度随剪切速率的增加而降低,CC溶液浓度的增加而呈指数关系上升,并得到了经验公式;结构黏度指数随CC溶液浓度的增加而缓慢增大,但当CC质量分数超过5.66%后呈非线性迅速增大,溶液流变性变差;纤维素氨基甲酸酯溶液纺前处理温度对其流变性能影响显著,当前处理温度高于15,溶液流变性能恶化,可观察到溶液呈凝胶状.

Abstract: The rheological behavior of cellulose carbamate solution and influencing factors were studiedThe results showed that cellulose carbamate in sodium hydroxide solution whose nitrogen contents below 3.57% exhibited shear thinning fluid and its non—Newtonian index less than 1 and these values decreased as the content of CC increased; The index of apparent viscosity was increased as shearing rate increased , and appeared exponential hypotaxis, and experiential formula was obtained; The index of structural viscosity increased slowly as the content of CC increased, and appeared non- linearity increase as the content of CC increased, the rheological behavior became worse as the content of CC was over 5.66%; The pri-spinning temperature of the CC solutions had significant impact on the rheological behavior and it became worse when the temperature was 15℃; the rheological behavior of this solution also turned worse when it was in gel state .

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