Abstract
The slow process of so called 'ageing' occurs when an amorphous solid is not in thermodynamic equilibrium and its temperature is below the glass transition. The gradual approach towards equilibrium affects the mechanical properties of the polymer. Generally speaking, the material becomes stiffer and more brittle, its damping and stress relaxation rate decrease. These changes can be represented by a horizontal shift of the stress relaxation curve on a logarithmic time scale. A theoretical analysis of polymer ageing should give satisfactory explanation of the mechanisms involved in amorphous solids and multiphase composites. The main purpose of this paper is to investigate the effect of ageing on the stress relaxation moduli of polymer composites in terms of their constituent phases. The influence of temperature and fibre structure on ageing is also discussed.
Original language | English |
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Title of host publication | [No Source Information Available] |
Publisher | Royal Australian Chemical Inst, Polymer Div |
Pages | 1-3 |
Number of pages | 3 |
ISBN (Print) | 0909589437 |
Publication status | Published - 1 Dec 1985 |
Externally published | Yes |
Event | Polymer 85: An International Symposium on Characterization and Analysis of Polymers - Preprints. - Duration: 1 Dec 1985 → … |
Conference
Conference | Polymer 85: An International Symposium on Characterization and Analysis of Polymers - Preprints. |
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Period | 1/12/85 → … |
ASJC Scopus subject areas
- General Engineering