par Bauwens, Jean Claude
Référence Plastics and Rubber Processing and Applications, 7, 3, page (143-147)
Publication Publié, 1987
Article révisé par les pairs
Résumé : This paper reports the influence of the effect of thermal pre-treatments performed near room temperature (aging) and near, but below, T//g(annealing) on the mechanical behavior of polycarbonate (PC). Aging was found to have no effect on the yield stress, even after three years, but altered the shape of the stress-strain curve and, in particular, reduced the deformation at yield. Annealing affected mainly the yield stress. A correlation may be established between yielding and enthalpy relaxation, while yielding and volume decrease produced by annealing do not appear to be related.

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