首页   按字顺浏览 期刊浏览 卷期浏览 Normal stress differences in liquid crystalline hydroxypropylcellulose solutions
Normal stress differences in liquid crystalline hydroxypropylcellulose solutions

 

作者: S.‐G. Baek,   J. J. Magda,   S. Cementwala,  

 

期刊: Journal of Rheology  （AIP Available online 1993）
卷期: Volume 37, issue 5  

页码: 935-945

 

ISSN:0148-6055

 

年代: 1993

 

DOI:10.1122/1.550404

 

出版商: The Society of Rheology

 

关键词: Normal stresses;Hydroxypropyl cellulose, rheology of;Lyotropic polymers, rheology of;Viscosity;Liquid crystals, rheology of;SOLUTIONS;LIQUID CRYSTALS;LYOTROPIC CRYSTALS;CELLULOSE;CRESOLS;VISCOSITY;STRESSES;SHEAR PROPERTIES

 

数据来源: AIP

 

摘要:

All three viscometric functions are investigated as a function of shear rate for lyotropic solutions of hydroxypropyl cellulose (HPC). Through the use of m‐cresol as the solvent, it was possible to investigate liquid crystal solutions at lower polymer volume fractions than have previously been studied for HPC. We find no evidence of a three‐region viscosity curve, as has been widely reported for HPC at higher polymer volume fractions. The first and second normal stress differences (N1andN2, respectively) both change sign twice as the shear rate is varied.

 

点击下载:  PDF (674KB)



返 回