A quantitative explanation is given for the apparent viscosity increase with increasing capillary shear rate for polystyrene at temperatures approaching the glass transition, T,. Possible shifts in T, as a function of the parameters shear rate, frequency, and pressure are interrelated to viscosity
โฆ LIBER โฆ
Viscosity and relaxation of glasses below the glass transition temperature
โ Scribed by Manabu Koide; Ryuji Sato; Takayuki Komatsu; Kazumasa Matusita
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 520 KB
- Volume
- 280-281
- Category
- Article
- ISSN
- 0040-6031
No coin nor oath required. For personal study only.
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The mechanical response of various amorphous polymers such as poly-(methyl methacrylate), polycarbonate, polystyrene, and poly(ethylene terephthalate) were studied experimentally and theoretically. First, usual stress-strain constitutive equations were determined below and through their glass transi