DETERMINATION OF THE WALL SLIP VELOCITY IN THE FLOW OF A SBR COMPOUND

被引:77
作者
MOURNIAC, P [1 ]
AGASSANT, JF [1 ]
VERGNES, B [1 ]
机构
[1] ECOLE MINES PARIS,CEMEF,BP 207,F-06904 SOPHIA ANTIPOLIS,FRANCE
关键词
WALL SLIP; RUBBER; MOONEY METHOD; SLIT DIE;
D O I
10.1007/BF00367011
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Rubber compounds are known to exhibit slip at the wall in particular flow conditions. The slip velocity is usually determined by using the classical Mooney method. The rheological behavior of a styrene butadiene rubber (SBR) compound was studied with three different rheometers. Biconical rotational, capillary and slit die rheometers were used to define the true viscous behavior of the compound and the slip velocity. It was shown that it was impossible to apply the Mooney method to our experimental data. New characterizations were thus developed for both capillary and slit die experiments. They were based on the dependency of the slip velocity on the local flow gap. Contrarily to the Mooney method, they provided physically acceptable results and led to a power-law relationship between wall slip, wall shear stress and local geometry of the flow.
引用
收藏
页码:565 / 574
页数:10
相关论文
共 32 条
[1]  
BADURA R, 1992, J APPL POLYM SCI APP, V50, P95
[2]   CAPILLARY FLOW INSTABILITY OF ETHYLENE POLYMER MELTS [J].
BLYLER, LL ;
HART, AC .
POLYMER ENGINEERING AND SCIENCE, 1970, 10 (04) :193-&
[3]  
Brzoskowski R., 1987, INT POLYM PROC, V1, P130
[4]   FLOW AND THERMAL-STABILITY OF RIGID PVC [J].
CHAUFFOUREAUX, JC ;
DEHENNAU, C ;
VANRIJCKEVORSEL, J .
JOURNAL OF RHEOLOGY, 1979, 23 (01) :1-24
[5]  
DECKER GE, 1953, INDIAN RUBBER WORLD, V128, P339
[6]  
ELKISSI N, 1989, CR ACAD SCI II, V309, P7
[7]  
ERTONG S, 1980, 3RD EUR RHEOL C, P153
[8]  
GEIGER K, 1989, KAUT GUMMI KUNSTST, V42, P273
[9]   WALL SLIP OF MOLTEN HIGH-DENSITY POLYETHYLENES .2. CAPILLARY RHEOMETER STUDIES [J].
HATZIKIRIAKOS, SG ;
DEALY, JM .
JOURNAL OF RHEOLOGY, 1992, 36 (04) :703-741
[10]   WALL SLIP OF MOLTEN HIGH-DENSITY POLYETHYLENE .1. SLIDING PLATE RHEOMETER STUDIES [J].
HATZIKIRIAKOS, SG ;
DEALY, JM .
JOURNAL OF RHEOLOGY, 1991, 35 (04) :497-523