| 主权项 |
1. A spiral wound carbon membrane, which is a carbon-based membrane material consisting of one or more integral and windable membrane layers, wherein the carbon membrane is composed of an integral and windable membrane layer, which is composed of a porous support and carbon materials containing fillers filled in the surface, pores and gaps of the porous support, has a porous structure with mechanical strength and toughness, and can be directly used to separate a gas mixture with different molecular sizes or liquid mixture;
the support is made of stainless steel mesh, aluminum mesh, nickel mesh, alloy mesh, copper mesh or iron mesh; the carbon material is prepared by carbonizing a polymeric precursor at a high temperature; the filler is consisted of one selected from the group consisting of inorganic nanoparticles, inorganic salts, metal grains, and metal salts, or a combination thereof; wherein the precursor polymer is one selected from the group consisting of polyamic acid, polyimides, polyetherimides, poly(phthalazinone ether sulfone ketones), poly(furfuryl alcohols), phenolic resins, poly(vinylidene chloride), poly(vinylidene fluoride), polyacrylonitrile, celluloses, polysulfone and polyether sulfone; wherein the inorganic nanoparticles as the fillers are one selected from the group consisting of zeolite molecular sieve, SiO2, TiO2, ZnO, NiO, Fe2O3 and FeO; the metal grains as the fillers are Ag, Fe, Cu, Pt, Pd or Au; the metal salt is AgNO3 or CuNO3; and the inorganic salts as the fillers are one selected from the group consisting of ammonium carbonate, ammonium bicarbonate and calcium carbonate; the inorganic salts, metal grains and metal salts as fillers are nanoparticles or microparticles. |
