𝔖 Bobbio Scriptorium
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Rheological properties of pitches and bitumina up to temperatures of 500°C

✍ Scribed by R. Balduhn; E. Fitzer

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
903 KB
Volume
18
Category
Article
ISSN
0008-6223

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Modeling of the apparent viscosity of pi
Modeling of the apparent viscosity of pitches and mesophases at linear temperature increase up to 500°C
✍ Werner R Hoffmann; Klaus J Hüttinger 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 615 KB

During the heating of pitch or mesophase, the viscosity first decreases and then increases. The viscosity decrease is a net physical effect and reversible. The viscosity increase is caused by chemical changes and thus it is irreversible. This viscosity behaviour with increasing temperature is import