Simulation on contraction flow of concentrated cellulose/1-butyl-3-methylimidazolium chloride solution through spinneret orifice

被引：3

作者：

Xia, X. L. ^{[1
]}

Yao, Y. B. ^{[1
]}

Zhu, X. J. ^{[2
]}

Mukuze, K. S. ^{[1
]}

Wang, C. S. ^{[1
]}

Zhang, Y. M. ^{[1
]}

Wang, H. P. ^{[1
]}

机构：

[1] Donghua Univ, State Key Lab Modificat Fiber & Polymer Mat, Shanghai 201620, Peoples R China

[2] Inst Sci & Technol, Dept Mat & Engn, Luoyang 471023, Peoples R China

来源：

MATERIALS RESEARCH INNOVATIONS | 2014年 / 18卷

基金：

中国国家自然科学基金;

关键词：

Contraction flow; Ionic liquid; Spinneret orifice; Simulation; Cellulose solution; IONIC LIQUIDS; ENTRY FLOW; CELLULOSE; DISSOLUTION; SWELL; MELTS; MODEL;

D O I：

10.1179/1432891714Z.000000000484

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Concentrated cellulose/1-butyl-3-methylimidazolium chloride ([bmim]Cl) solution which exhibits typical elasticity has been employed to prepare fibres by dry jet wet spinning technique. In order to design the spinneret, simulation on contraction flow of cellulose/[bmim] Cl solution through spinneret orifice was carried out. Geometry and mathematical models were established according to rheological behaviour and material parameters. The effects of geometry on variation of viscosity and flow pattern were simulated and discussed. The results show that an increase in aspect ratio decreased the apparent viscosity and a decrease in entrance angle reduced the size of 'dead' region. The aspect ratio and entrance angle of spinneret during dry jet wet spinning were optimised.

引用

页码：874 / 878

页数：5

共 16 条

[1] THE EXPERIMENTAL-OBSERVATION AND NUMERICAL PREDICTION OF PLANAR ENTRY FLOW AND DIE SWELL FOR MOLTEN POLYETHYLENES [J].

AHMED, R ;

LIANG, RF ;

MACKLEY, MR .

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, 1995, 59 (2-3) :129-153

[2] Entry Flow of Polyethylene Melts in Tapered Dies [J].

Ansari, M. ;

Alabbas, A. ;

Hatzikiriakos, S. C. ;

Mitsoulis, E. .

INTERNATIONAL POLYMER PROCESSING, 2010, 25 (04) :287-296

[3]

Bird R.B., 1987, Dynamics of Polymeric Liquids, V1, P171

[4]

BIRD RB, 1968, CHEM ENG SCI, V23, P427, DOI 10.1016/0009-2509(68)87018-6

[5] Solution rheology of cellulose in 1-butyl-3-methyl imidazolium chloride [J].

Chen, Xun ;

Zhang, Yumei ;

Wang, Huaping ;

Wang, Shih-Wa ;

Liang, Siwei ;

Colby, Ralph H. .

JOURNAL OF RHEOLOGY, 2011, 55 (03) :485-494

[6] Rheology of Concentrated Cellulose Solutions in 1-Butyl-3-methylimidazolium Chloride [J].

Chen, Xun ;

Zhang, Yumei ;

Cheng, Lingyan ;

Wang, Huaping .

JOURNAL OF POLYMERS AND THE ENVIRONMENT, 2009, 17 (04) :273-279

[7] Ionic liquids. Green solvents for the future [J].

Earle, MJ ;

Seddon, KR .

PURE AND APPLIED CHEMISTRY, 2000, 72 (07) :1391-1398

[8] Ionic liquids as reaction medium in cellulose functionalization [J].

Heinze, T ;

Schwikal, K ;

Barthel, S .

MACROMOLECULAR BIOSCIENCE, 2005, 5 (06) :520-525

[9] Characterization and comparison of hydrophilic and hydrophobic room temperature ionic liquids incorporating the imidazolium cation [J].

Huddleston, JG ;

Visser, AE ;

Reichert, WM ;

Willauer, HD ;

Broker, GA ;

Rogers, RD .

GREEN CHEMISTRY, 2001, 3 (04) :156-164

[10] Modeling Contraction Flows and Swell of Polymer Melts Extruded From Dies of Various Lengths [J].

Jeong, Jae-Hyeuk ;

Leonov, Arkady I. .

POLYMER ENGINEERING AND SCIENCE, 2008, 48 (12) :2340-2353

← 1 2 →