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| Titel: |
Yielding Behavior of Particulate Reinforced Polyphenylene Oxide Polymers |
| Auteur: |
Nicolais, L. Dibenedetto, A. T. |
| Verschenen in: |
International journal of polymeric materials |
| Paginering: | Jaargang 2 (1973) nr. 3 pagina's 251-260 |
| Jaar: |
1973-04-01 |
| Inhoud: |
The mechanical behavior of particulate reinforced polyphenylene oxide composites is correlated in a simple fashion to the mechanical responses of the individual constituents. By use of time-temperature-composition superposition principles it is shown that experimental values of yield stress, deformation during creep and time-to-yield can be superposed to form master curves and that the shift factors are separable function of temperature, stress and composition. Yield stress data are shown to conform to an equation of the form σy = K1+ K2 In [image omitted] while creep data fit a curve of the form εcreep = A0 exp - [(Q/RT)] [exp (σ/σc)] t2. The temperature shift factor for the data was given by In aT = (20,150/T) - 65.5 and was independent of stress and composition. The yield stress of the composite σyc was related to the yield stress of the matrix σyo by σyc = σyo (1 - 1.21φ0.67). Finally, the creep data for the composites could be superposed to a single curve by using a stress parameter σc = σco (1 - 1.21φ0.61). |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 7 van 7 gevonden artikelen
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