Rheology of cellulosic N-methylmorpholine oxide monohydrate solutions

被引：0
|
作者：
Petrovan, S
Collier, JR
Morton, GH
机构：
[1] Univ Tennessee, Dept Chem Engn, Knoxville, TN 37996 USA
[2] Buckeye Technol Inc, Memphis, TN 38108 USA
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2000年 / 77卷 / 06期
关键词：
lyocell solution; effective elongational viscosity; shear viscosity; dynamic moduli; entropy of orientation;
D O I：
10.1002/1097-4628(20000808)77:6<1369::AID-APP24>3.0.CO;2-G
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Shear dynamic and elongational rheology of concentrated solutions of cellulose in N-methylmorpholine oxide monohydrate (lyocell) were investigated at different temperatures and for two Hencky strains. Shear thinning and strain thinning behavior is characteristic for dynamic viscosity and effective elongational viscosity of lyocell solutions. Body forces, enthalpy, and entropy of orientation are high at low temperature and high deformation rates, showing a strong orientation effect. (C) 2000 John Wiley & Sons, Inc.
引用
收藏
页码：1369 / 1377
页数：9
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