On the jump-like creep of cross-linked polymers and composites based on them

The study on the jump-like character of creep of differing in their morphol ogy polymers was continued. The creep processes were recorded using the met hod of laser interferometry, allowing investigations on strain rate inhomog eneity on micron level and determination of strain jump parameters. Polyest er resins and filled composites based on them were used as objects of the i nvestigation. It is shown that the characteristics of jump-like creep chang e considerably depending on material composition and strain stage. It is as sumed that the strain jumps on micron level reflect the presence of ordered formations of the same scale in the structure, as well as their transforma tions. (C) 2001 Elsevier Science Ltd. All rights reserved.