Composite of an antibacterial polymeric material, method for the preparation and use thereof

A non-porous composite comprising:

• a textile substrate defining two sides;
• a coating impregnating both sides of the textile substrate so that the coating penetrates the textile substrate, the coating consisting solely of an aqueous dispersion of a first fluoropolymer, wherein the first fluoropolymer is selected from the group consisting of polytetrafluoroethylene, copolymers of tetrafluoroethylene-perfluoroalkyl vinyl ether in which the number of carbon atoms ranges from 1 to 5, and tetrafluoroethylene-hexafluoropropylene copolymers, and
• a film of polymeric material comprising at least one second fluoropolymer filled with porous particles of a silicate having a granulometric dimension d50 less than or equal to 5 μm and a porosity ranging from 30 to 60% in volume and loaded with antibacterial ions of at least one metal selected from the group consisting of silver, copper, zinc and nickel, wherein the second fluoropolymer is selected from the group consisting of polytetrafluoroethylene, copolymers of tetrafluoroethylene-perfluoroalkyl vinyl ether, wherein the number of carbon atoms of the perfluoroalkyl vinyl ether ranges from 1 to 5, and tetrafluoroethylene-hexafluoropropylene copolymers, and wherein the film of polymeric material is laminated on both sides of the coated textile substrate and couples to the first fluoropolymer that impregnates the textile substrate.