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It was established that, as a result of mixing low-density polyethylene and aluminosilicate, there is a change in the geometric parameters and in the size and shape distribution of the dispersed phase particles, which may be the consequence of their aggregation. For the composites investigated, there is an increase in the proportion of particles of smallest size and of lower anisotropy than in the initial filler. This may indicate the mechanical breakdown of the filler particles as a result of mixing with the polymer. The surface activity of the aluminosilicate particles during the crystallisation of polyethylene in the production of composite films was shown. The laws governing change in the physicomechanical characteristics of the filled composite films with increase in the filler concentration and their relationship with structural changes in the films were established.

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