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Effects of orientation on dynamic mechanical properties of ABS

Effects of orientation on dynamic mechanical properties of ABS Mechanical properties of a composite of glassy and rubbery polymers, ABS, were studied. Orientation induces two effects: (1) the intensity of the loss dispersion attributed to the rubbery component initially increases, then is reduced, and (2) a new loss peak at a temperature approximately 40°C below the original loss peak for the rubbery component appears. Assuming that this new peak is due to the dilated rubber particles embedded in the glassy matrix under strain, it is judged from the theory of Newman and Strella that a built‐in strain of 6% would be sufficient to cause this shift in Tg. Above the Tg of the rubbery component, the strain energy required to break increases with temperature. The reinforcement through incorporation of rubber particles is accomplished by enhancing the ability of the glassy matrix to draw on a local, microscopic scale. Such a local cold drawing may well be identified with crazing of glassy polymers. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Polymer Engineering & Science Wiley

Effects of orientation on dynamic mechanical properties of ABS

Daane, J. H.; Matsuoka, S.
Polymer Engineering & Science , Volume 8 (4) – Oct 1, 1968
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References (4)

Publisher
Wiley
Copyright
Copyright © 1968 Society of Plastics Engineers, Inc.
ISSN
0032-3888
eISSN
1548-2634
DOI
10.1002/pen.760080403
Publisher site
See Article on Publisher Site

Abstract

Mechanical properties of a composite of glassy and rubbery polymers, ABS, were studied. Orientation induces two effects: (1) the intensity of the loss dispersion attributed to the rubbery component initially increases, then is reduced, and (2) a new loss peak at a temperature approximately 40°C below the original loss peak for the rubbery component appears. Assuming that this new peak is due to the dilated rubber particles embedded in the glassy matrix under strain, it is judged from the theory of Newman and Strella that a built‐in strain of 6% would be sufficient to cause this shift in Tg. Above the Tg of the rubbery component, the strain energy required to break increases with temperature. The reinforcement through incorporation of rubber particles is accomplished by enhancing the ability of the glassy matrix to draw on a local, microscopic scale. Such a local cold drawing may well be identified with crazing of glassy polymers.

Journal

Polymer Engineering & Science – Wiley

Published: Oct 1, 1968

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