7results about How to "Regulatory performance" patented technology

The application provides a zwitterionic crosslinked ultrafiltration membrane with high antibacterial performance and a preparation method thereof, and belongs to the field of membrane separation technology.The zwitterionic crosslinked polymer ultrafiltration membrane with high antibacterial performance is prepared by using sodium p-aminobenzenesulfonate as an additive and a modifier, controlling the electrophilic substitution and crosslinking reaction between the sodium p-aminobenzenesulfonate and chloromethyl in a chloroalkyl functionalized polymer to control the crosslinking degree, and adopting a one-pot non-solvent induced phase inversion method.The application controls the thermodynamics of a casting solution through a chemical reaction, and then controls the polymer film forming kinetics, realizes the control of the morphology, microporous structure and performance of the polymer ultrafiltration membrane, endows the zwitterionic crosslinked ultrafiltration membrane with permanent hydrophilicity and antibacterial performance, and provides a new idea for preparing a polymer porous functional membrane.

The application relates to the technical field of waste gas treatment, in particular to an antimony ingot production waste gas treatment system which comprises a cooling unit, a dust removal unit and an adsorption unit; the adsorption unit comprises a first adsorption unit and a second adsorption unit; the first adsorption unit reduces the SO2 content in waste gas through a sodium alkali method to obtain low SO2 concentration waste gas; the second adsorption unit processes the low SO2 concentration waste gas through an ultracrosslinked porous ionic polymer to obtain purified waste gas; after being processed by the system, the SO2 content in the waste gas is less than or equal to 50 mg / m 3 , which meets the waste gas emission standard.

This invention relates to an EPDM-based crosslinked rubber material and its preparation method. The rubber material is obtained by vulcanizing raw rubber composed of EPDM rubber, maleic anhydride-grafted polyethylene, a peroxide vulcanizing agent, ethylene glycol dimethacrylate, p-benzoquinone dioxime, lead metal oxide, paraffin oil, a silane coupling agent, and an antioxidant. The EPDM-based crosslinked rubber material obtained by this invention has a double crosslinked structure. The formulation system endows EPDM rubber with excellent physical and mechanical properties, electrical insulation properties, and aging resistance, while also possessing good injection molding performance. This material solves the problems of high prices and long procurement cycles associated with imported finished products, providing an efficient and economical solution for the production of cable accessories.

This invention discloses a method and its application for controlling the bending degree of a two-dimensional cobalt four-coordinate conjugated compound on a three-dimensional tubular carbon material. The specific procedure involves ultrasonically dispersing a three-dimensional honeycomb-structured tubular carbon material in methanol, and dispersing the two-dimensional cobalt four-coordinate conjugated compound in methanol. The dispersion of the two-dimensional cobalt four-coordinate conjugated compound is slowly added dropwise to the dispersion of the three-dimensional honeycomb-structured tubular carbon material, while magnetic stirring. The solution is filtered and washed with methanol. Finally, the resulting solid is dried in a vacuum drying oven to obtain a composite structure of the two-dimensional cobalt four-coordinate conjugated compound and the three-dimensional honeycomb-structured tubular carbon material. This invention modifies the bending strain of the two-dimensional cobalt four-coordinate conjugated compound on the three-dimensional honeycomb-structured tubular carbon material by controlling the diameter of the tubular material. The preparation method is simple, efficient, environmentally friendly, and low-cost.

The invention discloses a plate pre-drawing and dieless mirror image loading composite forming process and a product, and belongs to the technical field of metal component forming and manufacturing. The method is used for solving the problems of cracking, ultra-poor thinning, low dimensional precision and the like in the forming process of the high-strength aluminum alloy thin-wall component with local continuous large-area bulge and local large wall angle characteristics in the aerospace field. According to the method, through two-stage area expansion distribution, the thinning amount of each stage is effectively controlled, and the cracking problem caused by one-time large deformation in a single process is avoided. And mirror images are cooperatively loaded on the local part of the plate to form a three-dimensional stress state, so that the forming limit is improved. And in-mold constraint aging synchronously realizes strengthening and shape righting, and is obviously superior to the traditional process.

This invention relates to the field of perovskite solar cell technology, specifically to a high-efficiency inverted perovskite solar cell and its fabrication method. The fabrication method includes the following steps: spin-coating a self-assembled monomolecule solution onto a first region on the surface of a conductive substrate, followed by annealing to form a hole transport layer; spin-coating a perovskite precursor solution onto the surface of the hole transport layer; during spin-coating, adding a chemical passivation solution to the coated surface and annealing; spin-coating a field passivator solution onto the annealed perovskite film surface, followed by annealing to form a perovskite active layer; spin-coating a mixed solution of fullerene and fullerene derivatives onto the surface of the perovskite active layer, followed by spin-coating an organic small molecule solution to form an electron transport layer; and fabricating electrodes on the electron transport layer and a second region on the surface of the conductive substrate; the chemical passivation solution is a polymer macromolecular material solution, and the field passivator solution is a small molecule material solution. The high-efficiency inverted perovskite solar cell of this invention significantly improves photoelectric conversion efficiency.

The application discloses a modified powder suitable for three-dimensional inkjet printing and a printing forming method thereof. Firstly, an amine or acid with a mercapto group is used as a modifier, a reaction between the modifier and polymer powder is realized in an aqueous solution, a mercapto-modified powder is obtained, then the modified powder is laid into a powder layer according to a pre-designed thickness, and solidified ink is applied on the powder layer according to designed printing parameters, and a three-dimensional inkjet printing forming is realized by applying a mercapto-ene click reaction means to the powder layer. The acid or amine with a mercapto group is used as the modifier, the reaction between the amino group or the carboxyl group and the powder is used, a polymer powder with a mercapto group is obtained as a mercapto donor in advance, the mercapto donor can participate in the mercapto-ene click reaction, and solidification between the mercapto donor and most ene inks can be realized, so that the selection range of the ink is expanded, and a new way is provided for forming printing of a brittle powder such as polylactic acid.