6 results about "Polycarbonate membrane" patented technology

This invention belongs to the field of polymer membrane material technology and discloses a method for extracting uranium (UO2) from seawater. 2+ This invention discloses a novel separation membrane material, specifically a amine-oxime-modified polycarbonate membrane, its preparation method, and its applications. The invention uses polycarbonate (PC) as a matrix. First, cyano-modified polycarbonate (PCAN) is prepared by grafting cyano groups. Then, PC and PCAN are blended, and a base membrane material is prepared using a phase inversion method. Finally, through in-situ amine-oxime modification, an amine-oxime-modified polycarbonate membrane (PCAO) is obtained, which possesses advantages such as high adsorption capacity, easy recovery, good stability, and excellent recyclability. Furthermore, the polycarbonate membrane modified with amine-oxime groups exhibits highly efficient selective adsorption capacity for uranium, enabling the effective development of uranium resources in seawater. This not only alleviates the domestic shortage of these key energy materials but also significantly improves economic benefits.

The application relates to the technical field of composite materials, and discloses a mixed-fiber fabric reinforced thermoplastic composite material laminated plate and a preparation method and application thereof. The laminated plate is obtained by die molding a preformed body, wherein the preformed body comprises a plurality of mixed-fiber fabrics and thermoplastic resin films which are sequentially stacked in layers, and the thermoplastic resin film is selected from one or more of a polyamide film, a polyphenylene sulfide film, a polyether ether ketone film, a poly (aryl ether ketone) film, a polycarbonate film and a polysulfone film. The prepared thermoplastic laminated plate is uniform in resin distribution and excellent in comprehensive mechanical properties.

The utility model relates to a radioactive source technical field especially relates to a kind of alpha instrument scale source and its preparation method.The alpha instrument scale source includes source core and substrate;The source core includes first polycarbonate film and second polycarbonate film, the side of the first polycarbonate film is adsorbed with the precipitate containing radionuclide, the other side of the first polycarbonate film is connected with the substrate by conductive glue, the side of the first polycarbonate film adsorbed with the precipitate containing radionuclide is integrated structure with the second polycarbonate film by hot-press packaging.The novel structure's alpha instrument scale source provided by the utility model is firm in structure, safe and reliable, and excellent in performance, and nuclide universality is good and easy to quantify.

The application discloses a preparation method of an MXene-CMC composite film for salinity gradient energy collection, and specifically comprises the following steps: step 1, preparing an MXene solution; step 2, preparing a CMC solution; step 3, placing the MXene solution prepared in step 1 into the CMC solution prepared in step 2, and dissolving the same through electromagnetic stirring to obtain a mixed dispersion liquid; step 4, taking a polycarbonate film, placing the polycarbonate film as a substrate into a suction filter bottle, taking the mixed dispersion liquid into the suction filter bottle to perform vacuum-assisted suction filtration, and obtaining a polycarbonate film covered with the MXene-CMC composite film; and step 5, stripping the polycarbonate film covered with the MXene-CMC composite film, filtering water, and obtaining the MXene-CMC composite film for salinity gradient energy collection. The application further discloses the MXene-CMC composite film for salinity gradient energy collection. The composite film prepared by the application has the characteristics of high power density, good stability and high economic value.

This utility model discloses a forestry ecological restoration monitoring device, relating to the field of forestry ecological restoration monitoring technology. The device includes a column, with a buffer rod slidably connected to the top of the column. A protective box is fixedly installed on the top of the buffer rod, and a supporting frame is fixedly installed on the surface of the protective box. A steel ring is fixedly installed at the end of the supporting frame away from the protective box. A box body is fixedly installed on the surface of the protective box, and a support rod is slidably connected inside the box body. When the support rod moves, a hanging ring slides on the steel ring, thereby unfolding multiple support rods and multiple polycarbonate films. This unfolds the polycarbonate films on the multiple supporting frames and steel rings, thus protecting the monitoring equipment on the column and preventing hail damage to the solar panels and monitoring equipment on the column. This improves the protection of the device, reduces damage to the monitoring equipment during hail weather, and ultimately reduces losses.

Provided is a multilayer body, and a polarizing plate, a heat-bent molded body, and a lens using the same. The multilayer body has a polycarbonate film having a thickness of 150 to 3000 μm, and a transparent conductive layer containing polyethylene dioxythiophene and polystyrene sulfonic acid.