The viscosity of the melts of polyformaldehyde/polyamide mixtures
β Scribed by M. Tsebrenko; A. Yudin; G. Vinogradov
- Publisher
- Springer US
- Year
- 1972
- Tongue
- English
- Weight
- 115 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0015-0541
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π SIMILAR VOLUMES
## Abstract The theory of viscosity of liquid mixtures presented here is based on Eyring's theory of absolute reaction rates. The most important conclusions drawn are that for liquids the free energies of activation for viscosity are additive on a number fraction or mole fraction basis and that int
Based on the free volume concept and the equation by Doolittle, an empirical equation is offered for the flow activation energy, E\*, for polymer melts for the range of over 150Β°C above glass transition temperature, Tg. This E\* represents the temperature coefficient of viscosity for the Newtonian r