Vapor phase method for making a shield based on conductive polymer and shield obtained by this method.

摘要

This process of manufacture comprises the following stages: a) - forming an electrically insulating porous substrate (12) containing an oxidising agent whose anion acts as a dopant; b) - preparing at room temperature a first solution (9) containing essentially 90 to 99% by volume of at least one liquid monomer containing at least one cyclic carbon chain with conjugated double bonds and 1 to 10% by volume of a second solvent increasing the vapour pressure of the monomer, c) - chemically depositing in vapour phase onto and/or into the porous substrate a continuous coating (16) of an electron-conducting polymer doped with the dopant, by evaporating the first solution at room temperature for a sufficient time and by subjecting the substrate to the vapour of this first solution, this polymer resulting from the chemical oxidation of the monomer of the first solution. The screen obtained is intended for the absorption of microwaves. <IMAGE>