Real-Time X-ray Diffraction Study on Two-Stage Drawing of Ultra-High Molecular Weight Polyethylene Reactor Powder above the Static Melting Temperature

1996 ◽  
Vol 29 (5) ◽  
pp. 1540-1547 ◽  
Author(s):  
Hiroki Uehara ◽  
Tetsuo Kanamoto ◽  
Akiyoshi Kawaguchi ◽  
Syozo Murakami
Keyword(s):  
Molecular Weight ◽  
Diffraction Study ◽  
Real Time ◽  
High Molecular Weight ◽  
Melting Temperature ◽  
X Ray Diffraction ◽  
Two Stage ◽  
Reactor Powder ◽  
X Ray ◽  
Ultra High Molecular Weight

scholarly journals Study of resistance of ultra-high molecular weight polyethylene to mechanochemical and radiation exposure

2021 ◽  
Vol 340 ◽  
pp. 01007
Author(s):  
Kamila M. Khassenova ◽  
Sergey V. Vosmerikov
Keyword(s):  
Molecular Weight ◽  
Radiation Exposure ◽  
Mechanical Activation ◽  
High Molecular Weight ◽  
High Energy ◽  
Polymer Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
X Ray Crystallography ◽  
Ultra High Molecular Weight

Ultra-high molecular weight polyethylene is a promising composite material to protect against ionizing radiation. The effect of mechanical activation and radiation exposure on the polymer structure has been studied. Mechanical activation of ultra-high molecular weight polyethylene was carried out for 30 s, 1, and 2 min in a high-energy water-cooled planetary ball mill AGO-2, followed by its further investigation using X-ray diffraction, X-ray crystallography, IR spectroscopy, scanning electron microscopy, and differentialscanning calorimetry.

Two-stage drawing of ultra-high molecular weight polyethylene reactor powder

Polymer ◽  
1987 ◽  
Vol 28 (9) ◽  
pp. 1517-1520 ◽  
Author(s):  
Tetsuo Kanamoto ◽  
Toshio Ohama ◽  
Koji Tanaka ◽  
Masatami Takeda ◽  
Roger S. Porter
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Two Stage ◽  
Reactor Powder ◽  
Ultra High Molecular Weight

scholarly journals The nanostructuring of ultra-high-molecular-weight polyethylene in thermal and mechanical fields as revealed by DSC

2021 ◽  
Vol 2103 (1) ◽  
pp. 012095
Author(s):  
L P Myasnikova ◽  
A K Borisov ◽  
Yu M Boiko ◽  
A P Borsenko ◽  
V F Drobot’ko ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Melting Temperature ◽  
Mechanical Characteristics ◽  
Thickness Distribution ◽  
High Strength ◽  
High Modulus ◽  
Know How ◽  
First Time ◽  
Ultra High Molecular Weight

Abstract The ultra-high-molecular-weight polyethylene reactor powders are widely used for the actively developing solvent-free method for producing high-strength high-modulus PE filaments, which includes the compaction and sintering of a powder followed by orientational hardening. To find an appropriate regime of the technological process, it is important to know how the nanostructure changes when transforming from a powder to a precursor for hardening. Nanocrystalline lamellae are characteristics of the powder structure. For the first time, the DSC technique was used to follow changes in the thickness distribution of lamellae in ultra-high-molecular-weight polyethylene reactor powder on its way to a precursor for orientation hardening. It was found that the percentage of thick (>15 nm) and thin (10 nm) lamellae in compacted samples and those sintered at temperatures lower than the melting temperature of PE (140°C) remains nearly the same. However, significant changes in the content of lamellae of different thicknesses were observed in the samples sintered at 145°C with subsequent cooling under different conditions. The influence of the lamellae thickness distribution in precursors on the mechanical characteristics of oriented filaments was discussed.

scholarly journals Real-time X-ray diffraction study at different scan rates of phase transitions for dipalmitoylphosphatidylcholine in KSCN

1995 ◽  
Vol 1233 (1) ◽  
pp. 68-74 ◽  
Author(s):  
B.A. Cunningham ◽  
P.J. Quinn ◽  
D.H. Wolfe ◽  
W. Tamura-Lis ◽  
L.J. Lis ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Diffraction Study ◽  
Real Time ◽  
X Ray Diffraction ◽  
X Ray

Kinetics of antigorite dehydration: A real-time X-ray diffraction study

2005 ◽  
Vol 236 (3-4) ◽  
pp. 899-913 ◽  
Author(s):  
J PERRILLAT ◽  
I DANIEL ◽  
K KOGA ◽  
B REYNARD ◽  
H CARDON ◽  
...  
Keyword(s):  
Diffraction Study ◽  
Real Time ◽  
X Ray Diffraction ◽  
X Ray ◽  
Kinetics Of
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