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Nanocomposites for reducing electromagnetic interferences

Ease of processingLightness of materialsLow-cost mass productionVersatility

Introduction

Development of new nanocomposites based on graphene / graphite nanoplates for the production of radio frequency electromagnetic screens. The invention provides the technology to create graphene-based polymer matrix coatings of millimeter thickness with absorbing radar properties.

Technical features

The invention relates to the development of new nanocomposites based on graphene / graphite nanoplates (GNP) for the production of radio frequency electromagnetic screens, and more specifically of thin coatings (about 1-2 mm thick) with absorbing radar properties. for the X and Ku frequency bands (i.e., 8-18 GHz). The control of the real part and the imaginary part of the effective permittivity of the nano composite is achieved by using GNP as filler, that is, nanostructures that combine the “nano” effect, determining the electrical transport properties of the material and therefore the part imaginary of the effective dielectric permittivity, with the “macro” effect, linked to the high surface extension, which mainly determines the polarization properties of the material and therefore the real part of the effective dielectric permittivity.

Possible Applications

  • Screens for the control and suppression of radio frequency electromagnetic interference;
  • Absorbent radio frequency radar;
  • Applications in which the use of materials with lightness characteristics and desired electrical conductivity properties is required.

Advantages

  • Low-cost mass production;
  • Lightness of materials;
  • Ease of processing;
  • Versatility of use in various fields of application.