Abstract
The article presents an overview and analysis of research in the field of durability of polymer composite materials. Based on the analysis, the task is set on the need to develop an express method for evaluating the long-term properties of the polymer matrix in conditions of accelerated laboratory tests in relaxation mode. Description of performed tests with modeling of stress-strain state by method of longitudinal bending is offered. A conclusion is made on the significance of external operational factors, a sensitive characteristic of aging is determined assessing the change in elastic properties of the binder, and it is pointed out that the simultaneous influence of the factors slows down the process of changing the elastic properties.
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