An investigation was made of the structure at different levels of its organisation and the physicomechanical properties of linear polyethylene under the action of nanosized silicon, titanium, and molybdenum carbides. It was established that the change in the thermomechanical characteristics of the nanocomposites and the increase in hardness and softening point of the materials are due to modification of the molecular and crystal structure of the polymer by nanosized carbides.
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