This article examines the environmental stress cracking (ESC) behavior of Lexan polycarbonate in a range of mixed environments. The main aim of the work was to establish whether thermodynamic correlations, which can predict ESC to some extent with single environments, hold when dealing with mixed en
A new approach for prediction of the permittivity of mixtures
✍ Scribed by T.P. Iglesias; J. Peón Fernández
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 134 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0021-9614
No coin nor oath required. For personal study only.
✦ Synopsis
Working on a mesoscopic scale, a new cubic expression for the effective permittivity of mixtures as a function of the mean permittivity fluctuation is established. Using previous methods for calculating this mean value, the effective permitivity of a mixture can thereby be written as a function of the fractional volumes of its components and their pure permittivities. A comparison with experimental results for (tetraglyme + n-nonane) near the consolute point with some other known expressions for mixtures are presented.
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