| abstract |
A composite membrane includes a fiber structure layer and a filling material layer. The fibrous structural layer has a plurality of fibers and a first melting point. The layer of filler material is located on the layer of fibrous structure and has a second melting point. Wherein, at least one of the plurality of fibers extends into the filling material layer, and the first melting point is greater than the second melting point. Wherein, the fiber structure layer includes a polymer selected from polyimide, polyurethane, polyamide, polybenzimidazole, polycarbonate, polyacrylonitrile, polyethylene terephthalate, A group consisting of polyvinylidene fluoride, poly-4-methylpentene and any combination of the above; the filling layer includes polyolefin material or polyester material. |