Capillary Flow of Molten Polyethylene—A Photographic Study of Melt Fracture

J. P. Tordella

doi:10.1122/1.548816

Capillary Flow of Molten Polyethylene—A Photographic Study of Melt Fracture

Transactions of the Society of Rheology ◽

10.1122/1.548816 ◽

1957 ◽

Vol 1 (1) ◽

pp. 203-212 ◽

Cited By ~ 96

Author(s):

J. P. Tordella

Keyword(s):

Capillary Flow ◽

Melt Fracture

Download Full-text

Investigations of slip in capillary flow by laser-Doppler velocimetry and their relations to melt fracture

10.1063/1.4918876 ◽

2015 ◽

Cited By ~ 1

Author(s):

Helmut Münstedt

Keyword(s):

Laser Doppler Velocimetry ◽

Capillary Flow ◽

Laser Doppler ◽

Doppler Velocimetry ◽

Melt Fracture

Download Full-text

Melt fracture and wall slip of metallocene-catalyzed bimodal polyethylenes in capillary flow

Journal of Rheology ◽

10.1122/1.4774397 ◽

2013 ◽

Vol 57 (2) ◽

pp. 393-406 ◽

Cited By ~ 24

Author(s):

Yong Woo Inn

Keyword(s):

Capillary Flow ◽

Wall Slip ◽

Melt Fracture

Download Full-text

Study on the melt fracture of metallocene poly(ethylene-octene) in capillary flow

Journal of Applied Polymer Science ◽

10.1002/app.22198 ◽

2005 ◽

Vol 98 (2) ◽

pp. 903-911 ◽

Cited By ~ 4

Author(s):

Zhenghong Tao ◽

Jan-Chan Huang

Keyword(s):

Capillary Flow ◽

Melt Fracture ◽

Poly Ethylene

Download Full-text

Wall slip and melt-fracture of polystyrene melts in capillary flow

Polymer ◽

10.1016/j.polymer.2010.03.014 ◽

2010 ◽

Vol 51 (10) ◽

pp. 2221-2228 ◽

Cited By ~ 10

Author(s):

Ryohei Komuro ◽

Koji Kobayashi ◽

Takashi Taniguchi ◽

Masataka Sugimoto ◽

Kiyohito Koyama

Keyword(s):

Capillary Flow ◽

Wall Slip ◽

Melt Fracture

Download Full-text

Melt fracture, melt viscosities, and die swell of polypropylene resin in capillary flow

Journal of Applied Polymer Science ◽

10.1002/app.11499 ◽

2003 ◽

Vol 87 (10) ◽

pp. 1587-1594 ◽

Cited By ~ 16

Author(s):

Jan-Chan Huang ◽

Zhenghong Tao

Keyword(s):

Capillary Flow ◽

Die Swell ◽

Melt Fracture

Download Full-text

The onset of wall slip and sharkskin melt fracture in capillary flow

Polymer Engineering & Science ◽

10.1002/pen.760341902 ◽

1994 ◽

Vol 34 (19) ◽

pp. 1441-1449 ◽

Cited By ~ 30

Author(s):

Savvas G. Hatzikiriakos

Keyword(s):

Capillary Flow ◽

Wall Slip ◽

Melt Fracture

Download Full-text

Model for Melt Fracture Instabilities in the Capillary Flow of Polymer Melts

Physical Review Letters ◽

10.1103/physrevlett.77.655 ◽

1996 ◽

Vol 77 (4) ◽

pp. 655-658 ◽

Cited By ~ 22

Author(s):

Joel D. Shore ◽

David Ronis ◽

Luc Piché ◽

Martin Grant

Keyword(s):

Polymer Melts ◽

Capillary Flow ◽

Melt Fracture

Download Full-text

Theory of melt fracture instabilities in the capillary flow of polymer melts

Physical Review E ◽

10.1103/physreve.55.2976 ◽

1997 ◽

Vol 55 (3) ◽

pp. 2976-2992 ◽

Cited By ~ 21

Author(s):

Joel D. Shore ◽

David Ronis ◽

Luc Piché ◽

Martin Grant

Keyword(s):

Polymer Melts ◽

Capillary Flow ◽

Melt Fracture

Download Full-text

Observation of melt fracture of polypropylene resins in capillary flow

Polymer ◽

10.1016/s0032-3861(02)00830-3 ◽

2003 ◽

Vol 44 (3) ◽

pp. 719-727 ◽

Cited By ~ 16

Author(s):

Zhenghong Tao ◽

Jan-Chan Huang

Keyword(s):

Capillary Flow ◽

Melt Fracture

Download Full-text

On the Lubricating Action of Molten Polymers in Single-Screw Extruders

Journal of Mechanical Engineering Science ◽

10.1243/jmes_jour_1978_020_013_02 ◽

1978 ◽

Vol 20 (2) ◽

pp. 73-78 ◽

Cited By ~ 3

Author(s):

D. R. Carlile ◽

R. T. Fenner

Keyword(s):

Shear Stress ◽

Capillary Flow ◽

Hydrodynamic Lubrication ◽

Critical Shear Stress ◽

Polymeric Materials ◽

Operating Conditions ◽

Lateral Loads ◽

Melt Fracture ◽

Metallic Contact ◽

Single Screw Extruders

An experimental investigation of metallic contact between the screws and barrels of extruders processing polymeric materials is described. Above a critical shear stress of the order of 105 N/m2, contact is obtained between screw flight and barrel under all operating conditions. This critical value is similar in magnitude to that associated with the onset of melt fracture in capillary flow. It is therefore suggested that slip in, or near, the clearance reduces or eliminates polymer hydrodynamic lubrication of the screw. Below the critical shear stress, the hydrodynamic lubrication associated with a continuous film is capable of supporting substantial lateral loads applied to the screw.

Download Full-text