DTA measurements were used for studies of the kinetics of the cyclization and oxidation of PAN during the thermal treatment in air and nitrogen. The cyclization is a first order reaction with an activation energy of about 30 kcal/mole in nitrogen and about 34 kcal/mole in air. For copolymer PAN (5%
✦ LIBER ✦
Chemical stability of épan carbon fiber plastic in various media
✍ Scribed by I. S. Revenkova; A. V. Goryainova; L. L. Loichuk
- Publisher
- Springer
- Year
- 1986
- Tongue
- English
- Weight
- 275 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0009-2355
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Current carbon fiber production from acrylic fibers employ wet or dry spun PAN-based precursors that require expensive solvents and costly solvent recovery methods. Recently, it has been discovered that melt spun PAN-based fibers can be prepared by using water as a plasticizer to lower the viscosity