The results of magneto-thermal surface reinforcement of polymeric materials are presented on the example of plates made of high-density polyethylene and polypropylene. As part of the experiments, iron powder with an average particle size of 60 µm was applied to the plate samples under the influence of magnetic and thermal fields. An increase in the mass of samples was established (on average by 15-20% of the mass of the original sample) and the basic dependencies between the main parameters of the magneto-thermal reinforcement process were determined.
The author considers the forces acting on a ferromagnetic particle from the side of the magnetic and thermal fields, as well as the forces opposing its penetration from the side of the surface layer of the polymer. The calculation of the forces acting
on a ferromagnetic particle in the process of its introduction into the surface layer of the polymer is carried out using the example of nickel and polypropylene. The balance
of forces required for the introduction of a ferromagnetic particle into the molten surface of a thermoplastic polymer and stable fixation in it is calculated.
The universality of the approach used is shown for calculating the parameters of surface modification of thermoplastic products with different properties by ferromagnetic particles of different dispersion and characteristics.
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