Process for obtaining blanket flexìvel for absorption of electromagnetic radiation in the range of 2 to 20 GHz based on polyurethane added with ferrite, carbon fibres and / or partìculas

摘要

Process for obtaining blanket flexu00ecvel for absorption of electromagnetic radiation in the range of 2 to 20 GHz based on polyurethane added with ferrite, fibres and / or partu00ecculas carbon ".Patent of invention of a process for obtaining webs absorbing of electromagnetic radiation by using as a base polymer polyurethane.Polymeric layer based on polyurethane resins are made on a polyethylene film and paper.During the curing of the resin are dispersed particles of carbon, carbon fibers and / or ferrite.The drying process occurs at room temperature, or in the greenhouse with controlled temperature. The end product is obtained after curing and take-off of the polyethylene film and paper.The potential application of these webs such as electromagnetic shielding reaches industries aerospace, aviation, telecommunications and related areas.