FIELD: polymer technologies.
SUBSTANCE: invention relates to the field of polymer technologies and concerns a new method for the production of foam materials of polymer compositions. The method includes a stage of preheating, when foaming polymers containing foaming agents, and subsequent foaming by a thermic reaction with microwave radiation.
EFFECT: invention provides development of an efficient foaming method with obtainment of rigid foam materials, which simultaneously provides obtainment of a product having an extremely uniform porous structure.
11 cl
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