Regarding the dependence of the viscosity properties of polyamidebenzimidazole solutions on its calculated mean molecular weight

Rheological studies of polyamidebenzimidazole (PABI) solutions with various calculated mean molecular weights (MWs) were carried out. A relationship was found between the ratio of the greatest Newtonian viscosity to the apparent viscosity and the calculated mean polymer MW. The effect of this charac...

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Bibliographic Details
Published in:Fibre chemistry 2012-09, Vol.44 (3), p.171-174
Main Authors: Lunev, V. D., Machalaba, N. N.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Fibers
Fibre
Mathematical analysis
Molecular weight
Organic Chemistry
Polymer Sciences
Polymers
Rheological properties
Spinning
Strength
Viscosity
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Summary:Rheological studies of polyamidebenzimidazole (PABI) solutions with various calculated mean molecular weights (MWs) were carried out. A relationship was found between the ratio of the greatest Newtonian viscosity to the apparent viscosity and the calculated mean polymer MW. The effect of this characteristic on the rheological properties of spinning solutions and the strength of aramide fibers was determined. It was established that the strength characteristics of aramide fibers were higher if they were spun from PABI solutions with mean MW > 30,000.
ISSN:0015-0541
1573-8493
DOI:10.1007/s10692-012-9423-7