摘要:
The present invention provides a multifunctional diffusion barrier comprising at least one organic polymer and a 2D graphene or 2D graphene derivative material, wherein it comprises a gradient concentration of the 2D graphene (derivative) material. It also relates to the method for preparing it. The multifunctional diffusion barrier of the invention can be used as a liquid and/or gas barrier, or as structural material, or as sealing material, or as a self-cleaning material or as protective material against UV radiation in aeronautical, automotive, marine or building field. In particular, the multifunctional diffusion barrier of the invention is particularly suitable in producing parts of aircraft such as a fuel tank, a fuel tank conduit and a gasket.
摘要:
The present invention relates to an artificial leather using polyester, the artificial leather comprising: a base substrate layer made of a polyester fabric; an adhesive layer deposited on one surface of the base substrate layer and made of a polyester copolymer; and a skin film layer deposited on one surface of the adhesive layer and made of a polyetherester-based block copolymer.
摘要:
An article is described that includes at least one fibrous support surface coated by at least two successive layers including: an inner layer, in contact with the fibrous support, which is a coating including a silicone elastomer, polyurethane or silicone-polyurethane; and a topcoat outer layer, in contact with the inner layer, which is a coating obtained by crosslinking a composition described herein. The first layer, that is in contact with the fibrous support, is a layer based on a silicone elastomer, polyurethane or silicone-polyurethane composition that was crosslinked. The second layer, that is in contact with the first layer, is a layer obtained by crosslinking as described herein.
摘要:
Water vapor transport membranes for ERV and other water vapor transport applications are provided. The membranes include a substrate and an air impermeable selective layer coated on the substrate, the selective layer including a cellulose derivative and a sulfonated polyaryletherketone. In some embodiments the sulfonated polyaryletherketone is in a cation form and/or the selective layer includes s PEEK and CA in an s PEEK:CA (wt.:wt.) ratio in the range of about 7:3 to 2:3. Methods for making such membranes are provided. The methods include applying a coating solution/dispersion to a substrate and allowing the coating solution/dispersion to dry to form an air impermeable selective layer on the substrate, the coating solution/dispersion including a cellulose derivative and a sulfonated polyarylether ketone. In some embodiments the sulfonated polyaryletherketone is in a cation form and/or the coating solution/dispersion includes s PEEK and CA in an sPEEK:CA (wt.:wt.) ratio in the range of about 7:3 to 2:3.
摘要:
A method according to an aspect of the invention comprises a step of bringing a plastic matrix substance in contact with a reinforcement fiber structure to form an intermediate material. Further, the method comprises a step of curing the matrix substance of the intermediate material to form a composite material. Before the plastic matrix substance is brought into contact with the reinforcement fiber structure, it is mixed with a diluent to form a mixture.
摘要:
The invention relates to a porous material containing a substrate that is based on at least one organic polymer A and a coating. According to the invention, i) the organic polymer-based uncoated substrate A is macroporous, ii) the surface of the macroporous substrate is coated with a polymer B based on reactive resins, and iii) said polymer B coating is nanoporous and the average diameter of the nanopores is a maximum 1,000 nm, (recording materials are excluded). The invention also relates to a method for producing the porous material and to the use of said material as filters for gases or liquids. Finally, the invention relates to filters containing the porous material and to a method for filtering gases or liquids.
摘要:
The invention relates to a porous material containing a substrate that is based on at least one organic polymer A and a coating. According to the invention, i) the organic polymer-based uncoated substrate A is macroporous, ii) the surface of the macroporous substrate is coated with a polymer B based on reactive resins, and iii) said polymer B coating is nanoporous and the average diameter of the nanopores is a maximum 1,000 nm, (recording materials are excluded). The invention also relates to a method for producing the porous material and to the use of said material as filters for gases or liquids. Finally, the invention relates to filters containing the porous material and to a method for filtering gases or liquids.