Non-newtonian rheological behavior of semi-dilute ultra-high molecular weight polyethylene solution in gel-spinning process. 1: Concentration effect on the fundamental rheological properties

2000 ◽  
Vol 40 (11) ◽  
pp. 2414-2422 ◽  
Author(s):  
Yasuo Ohta ◽  
Hiroki Murase ◽  
Hiroshige Sugiyama ◽  
Hiroshi Yasuda
Keyword(s):  
Molecular Weight ◽  
Rheological Properties ◽  
High Molecular Weight ◽  
Rheological Behavior ◽  
Concentration Effect ◽  
Gel Spinning ◽  
Spinning Process ◽  
Ultra High Molecular Weight

Twist-film gel spinning of large-diameter high-performance ultra-high molecular weight polyethylene monofilaments

2016 ◽  
Vol 87 (19) ◽  
pp. 2323-2336 ◽  
Author(s):  
Xudong Fang ◽  
Jing Shi ◽  
Tom Wyatt ◽  
Donggang Yao
Keyword(s):  
Molecular Weight ◽  
Solvent Extraction ◽  
High Molecular Weight ◽  
High Performance ◽  
Large Diameter ◽  
High Strength ◽  
Gel Spinning ◽  
Solvent Removal ◽  
Spinning Process ◽  
Ultra High Molecular Weight

A twist-film gel spinning process was developed for large-diameter high-performance ultra-high molecular weight polyethylene (UHMWPE) monofilaments. By using polybutene as a spin-solvent, film twisting was demonstrated to be an effective method for solvent removal; approximately 70% of solvent contained in the gel film can be removed simply by film twisting. This mechanical solvent removal process also makes conventional solvent extraction proceed significantly faster. Besides improved solvent extraction efficiency, large-diameter high-strength UHMWPE monofilaments (with diameters of about 80 µm and strength exceeding 3.2 GPa) can be produced with this process, which is difficult to achieve using conventional processes. The capability of making large-diameter high-strength monofilaments may allow new products of UHMWPE to be developed in a number of high-performance applications.

scholarly journals Synergistic toughening of polypropylene with ultra-high molecular weight polyethylene and elastomer-olefin block copolymers

RSC Advances ◽  
2019 ◽  
Vol 9 (41) ◽  
pp. 23994-24002 ◽  
Author(s):  
Lucheng Qi ◽  
Lei Wu ◽  
Ren He ◽  
Hui Cheng ◽  
Boping Liu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Block Copolymers ◽  
Rheological Properties ◽  
High Molecular Weight ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Twin Screw ◽  
Ultra High Molecular Weight

Blends of polypropylene (PP) and ultra-high molecular weight polyethylene (UHMWPE) with elastomer-olefin block copolymers (OBC) were prepared using an ultrasonic twin-screw extruder, and their mechanical and rheological properties were investigated.

High-speed gel-spinning of ultra-high molecular weight polyethylene

1986 ◽  
Vol 16 (2-3) ◽  
pp. 167-174 ◽  
Author(s):  
A. J. Pennings ◽  
R. J. van der Hooft ◽  
A. R. Postema ◽  
W. Hoogsteen ◽  
G. ten Brinke
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
High Speed ◽  
Gel Spinning ◽  
Ultra High Molecular Weight
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