In this work, three different linear polypropylenes, with melt flow rate between 450-1200 g.10min−1, have been characterized by using rotational and twin bore capillary rheometer equipped by novel inert orifice die design as well as by the instrumented injection molding machine. The measured data, that shows first as well as second Newtonian plateau, were consequently fitted by four conventional models (Cross, Carreau, Generalized Quemada and Carreau-Yasuda models) as well as by two novel viscosity models (modified Quemada and Carreau models) suggested here for the first time. It has been found that modified 5-parametric Carreau model has the highest capability to describe the measured shear viscosity data for given polymer melts.

1.
C. J.
Ellison
,
A.
Phatak
,
D. W.
Giles
,
C. W.
Macosko
and
F. S.
Bates
,
Polymer
48
,
3306
3316
(
2007
).
2.
R.
Nayak
,
I. L.
Kyratzis
,
Y. B.
Truong
,
R.
Padhye
,
L.
Arnold
,
G.
Peeters
,
M.
O’Shea
and
L.
Nichols
,
J. Material Sci.
48
,
273
281
(
2013
).
3.
F.
Zuo
,
D. H.
Tan
,
Z.
Wang
,
S.
Jeung
,
C. W.
Macosko
and
F. S.
Bates
,
ACS Macro Letters
2
,
301
305
(
2013
).
4.
G. F.
Ward
,
Filtration Separation
38
,
42
43
(
2001
).
5.
J. E.
Brang
,
A.
Wilkie
and
J. S.
Haggard
, US Patent 2008/0023888.
6.
R.
Nayak
,
R.
Padhye
,
I. L.
Kyratzis
,
Y. B.
Truong
and
L.
Arnold
,
Textile Research Journal
82
,
129
147
(
2012
).
7.
R. A.
Chapman
,
Applications of nonwovens in technical textiles
,
New York
, (
2010
).
8.
A.
Willkie
and
J.
Haggard
,
Int. Fiber J.
22
,
48
49
(
2007
).
9.
J.
Drabek
and
M.
Zatloukal
,
AIP Conference Proceedings
1526
,
237
247
(
2013
).
10.
Y.
Wang
,
Application of Polymer Rheology in Melt Blowing Process and Online Rheological Sensor
, Ph. D. Thesis,
The University of Tennessee
(
2004
).
11.
R.
Nayak
,
Fabrication and Characterisation of Polypropylene Nanofibres by Melt Electrospinning and Meltblowing
, Ph. D. Thesis,
RMIT University
(
2012
).
12.
13.
M. M.
Cross
,
J.Coll. Sci.
20
(
5
),
417
437
(
1965
).
14.
P. J.
Carreau
,
Trans. Soc. Rheol.
16
(
1
),
99
127
(
1972
).
15.
D.
Quemada
,
P.
Flaud
,
P. H.
Jezequel
,
Chem. Eng. Comm.
32
(
1-5
),
61
83
(
1985
).
16.
T.
Fang
,
H.
Zhang
,
T. T
Hsieh
,
C.
Tiu
,
Journal Texture Studies
28
(
1
),
11
26
(
1997
).
17.
K.
Yasuda
,
R. C.
Armstrong
,
R. E.
Cohen
,
Rheol. Acta
20
(
2
),
163
178
(
1981
).
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