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Mesophase formation in defined mixtures of coal tar pitch fractions

โœ Scribed by Gopal Bhatia; Erich Fitzer; Dieter Kompalik

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
559 KB
Volume
24
Category
Article
ISSN
0008-6223

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โœฆ Synopsis

QI-free coal tar pitch is separated into a toluene-soluble (TS) and a toluene-insoluble (TI) fraction by solvent extraction. The effect of controlled mixing of both fractions on mesophase formation is studied. The formation of mesophase is correlated with the carbon and hydrogen contents of the sample materials. The influence of TI content on the viscosity and thus on the mesophase formation is measured in order to obtain viscosity data as a function of pitch composition for needle coke, carbon fiber, and carbon electrode manufacture.

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