Temperature-pressure-composition model for melt viscosity in the Di-An-Ab system

2021 ◽  
Vol 560 ◽  
pp. 119895 ◽  
Author(s):  
M. Li ◽  
J.K. Russell ◽  
D. Giordano
Keyword(s):  
Melt Viscosity

THE EFFECT OF FLUORINE ON MELT VISCOSITY IN JADEITE-LEUCITE MELTS

2017 ◽  
Author(s):  
Olin Carty ◽  
◽  
Geneviève Robert ◽  
Rebecca Smith
Keyword(s):  
Melt Viscosity

Investigating the Rheological Properties and Heat Stability of Polyarylsulphone Sulphides of Domestic Grades

2017 ◽  
Vol 44 (1) ◽  
pp. 23-26
Author(s):  
A.B. Baranov ◽  
I.D. Simonov-Emel'yanov ◽  
T.I. Andreeva ◽  
T.N. Prudskova ◽  
V.I. Sazikov
Keyword(s):  
Molecular Weight ◽  
Heat Stability ◽  
Chain Structure ◽  
Low Flow ◽  
Processing Temperature ◽  
Rheological Characteristics ◽  
Melt Viscosity ◽  
Full Curve ◽  
Temperature Range ◽  
Service Characteristics

The rheological characteristics of melts of polyarylsulphone sulphides of domestic grades were investigated in the temperature range 240–360°C. Full curves of heat stability were obtained, and formulae were proposed for their description. Polyarylsulphone sulphides (PSPSs) are heat-resistant polymers of structural designation of the polysulphone (PSP) class, the domestic production technology of which was developed at OAO “Institut plastmass”, which makes it possible to carry out the production of a wide grade range of PSP of different polymer chain structure and molecular weight. The main problem in the processing of PSPSs is their high melt viscosity and fairly low flow. Increase in the processing temperature lowers their melt viscosity, but there is then the danger of thermooxidative degradation of the polymer and consequently of deterioration in the service characteristics and appearance of articles. The aim of this work was to investigate the rheological characteristics and to obtain the full curve of heat stability for domestic grades of PSPSs and PSP of different molecular weight in a wide processing temperature range.

scholarly journals An experimental study of permeability development as a function of crystal-free melt viscosity

2016 ◽  
Vol 435 ◽  
pp. 45-54 ◽  
Author(s):  
A. Lindoo ◽  
J.F. Larsen ◽  
K.V. Cashman ◽  
A.L. Dunn ◽  
O.K. Neill
Keyword(s):  
Experimental Study ◽  
Melt Viscosity
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