๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Viscous behavior of ultrahigh molecular weight polyethylene solution

โœ Scribed by M.-C. Yang; W.-C. Chen


Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
133 KB
Volume
65
Category
Article
ISSN
0021-8995

No coin nor oath required. For personal study only.

โœฆ Synopsis


The viscous behavior of the decalin solution of ultrahigh molecular weight polyethylene (UHMEPE) was studied. The influence of the concentration of polymer as well as the temperature was investigated. The flow curve can be described by the power-law model. The dependence of the viscosity on the temperature can be described by the Arrhenius-Frenkel-Eyring equation. The dependence of viscosity on the concentration can also be described by a power-law correlation. The addition of aluminum stearate increased the activation energy of flow of the solution. The viscosity of UHM-WPE solution was decreased at lower concentration and increased at higher concentration of UHMWPE.


๐Ÿ“œ SIMILAR VOLUMES


Rheological behavior of ultrahigh molecu
โœ Anqiu Zhang; Kequan Chen; Hentai Zhao; Zongquan Wu ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 273 KB

The rheological behavior of ultrahigh molecular weight polyethylene (UHMWPE) semidilute solutions with different solvents has been studied. In a temperature range of 150-185"C, the viscosity of a UHMWPE semidilute solution with paraffin oil as solvent (soln 1) is more temperature-independent and vis

Processing of ultrahigh molecular weight
โœ Xi-You Wang; Sheng-Ying Li; R. Salovey ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 394 KB

The extent of recrystallization of nascent UHMWPE powder is easily measured by calorimetry. Melting and recrystallization of nascent UHMWPE at 140ยฐC can be suppressed by compression molding. Crystals of UHMWPE prepared from dilute solution show a peak melting temperature of 140ยฐC and exhibit crystal

Rheological behavior of ultrahigh molecu
โœ Kequan Chen; Anqiu Zhang; Pin Lu; Zongquan Wu ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 283 KB ๐Ÿ‘ 1 views

an Road, Shanghai, People's Republic of China ## Synopsis The effect of aluminium stearate on the rheological behavior of ultra-high molecular weight polyethylene (UHMWPE) semidilute solutions with paraffin oil as the solvent has been investigated. Adding aluminium stearate to paraffin oil can pr

Oxidation of gamma-irradiated ultrahigh
โœ Christopher F. Coote; John V. Hamilton; W. Grant McGimpsey; Robert W. Thompson ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 332 KB

Ultrahigh molecular weight polyethylene (UHMWPE), the current polymer of choice in orthopedic prosthetic devices, is typically sterilized by exposure to Co-60 gamma irradiation prior to packaging for long-term storage. However, the exposure to Co-60 irradiation generates free radicals along the poly