18results about How to "Regulatory performance" patented technology

According to the anion exchange polymer, the anion exchange membrane, the method and the device provided by the invention, a cationic group with high alkali resistance is introduced into a polyaryl polymer structure, and meanwhile, a cationic side chain is introduced, so that the ionic conductivity and the alkali-resistant stability of the anion exchange polymer are synchronously improved; the anion exchange membrane prepared from the anion exchange polymer has the advantages of excellent ionic conductivity and alkali-resistant stability, can stably operate for a long time in a high pH value environment, and is not easy to degrade or reduce the performance. Therefore, the anion exchange membrane has remarkable advantages in electrochemical processes such as water electrolysis hydrogen production, so that the anion exchange membrane has a wide application prospect in electrochemical devices such as a water electrolysis reactor and the like.

The invention belongs to the field of application of lead-based piezoelectric ceramics, and particularly relates to a preparation method of piezoelectric ceramics capable of obtaining piezoelectric property without polarization. The surface of PZT-BZnI powder is uniformly coated with a nano film ZSO through an oil-phase nano reactor, the PZT-based piezoelectric ceramic is prepared through solid-phase reaction, rapid sintering and rapid cooling, the phase change of the ZSO occurs in the rapid cooling process, pressure stress with proper size and uniform distribution is generated at the grain boundary of the PZT-based ceramic, the piezoelectric effect is induced, and the piezoelectric ceramic can directly obtain the piezoelectric property without polarization. The oil-phase nano-reactor has the advantages that the surface of the lead-based powder is uniformly coated with the nano-film, and the defects that an existing core-shell structure is complex in preparation process and uneven in distribution are overcome; the uniformly coated nano-film ZSO generates lasting and uniform pressure stress through phase change, so that the piezoelectric property of the lead-based piezoelectric ceramic is obtained without polarization, and depolarization is avoided.

The invention discloses a nano-cellulose modified thermoplastic material composite 3D printing consumable and a preparation method, and relates to the technical field of 3D printing consumables, the nano-cellulose modified thermoplastic material composite 3D printing consumable is formed by mixing nano-cellulose modified pecan shell micro powder and a thermoplastic material according to the mass ratio of 1: (4-5); the nano-cellulose modified hickory nut shell micro-powder is prepared from hickory nut shells, talcum powder, nano-cellulose, cationic starch, alkyl ketene dimer, a coupling agent and a lubricating agent. The thermoplastic material is composed of polylactic acid, poly (adipic acid) / butylene terephthalate, a cellulose biological composite material, a flexibilizer and an antioxidant, and the problems that talcum powder and hickory nut powder are not tightly combined and are prone to falling off and components are unstable are effectively solved by adopting the novel separation device; the tight combination and uniform distribution of the talcum powder and the pecan shell micro powder are ensured, so that the compatibility of the talcum powder and the pecan shell micro powder with a thermoplastic material and the overall performance of the composite material are improved.

The present invention relates to the technical field of capacitor films, and in particular to a high-voltage and high-temperature-resistant film for a wind power capacitor and a preparation method thereof, wherein the high-voltage and high-temperature-resistant film comprises a polypropylene-based film layer, and the polypropylene-based film layer is prepared from a modified polypropylene material. By using anhydrous dichloromethane as a solvent under an inert atmosphere, 3,5-bis(trifluoromethyl)aniline and vinylsulfonyl chloride undergo a substitution reaction under certain conditions, and further undergo a graft copolymerization reaction with polypropylene under the action of an initiator to obtain a modified polypropylene material, and in the process of preparing the film, the preheating temperature, the stretching temperature and the stretching ratio of the transverse and longitudinal stretching are controlled to ensure the uniformity of the film stretching, so that the film finally prepared has good mechanical properties and high temperature resistance.

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.

The invention discloses a preparation method of halogen-free epoxy resin, which comprises the following step: carrying out nucleophilic substitution reaction on a compound shown in a formula I and a compound shown in a formula II under the action of a catalyst to prepare epoxy resin shown in a formula III. The method disclosed by the invention is simple to operate, the post-treatment does not need complicated halogen removal and purification operation, and the prepared halogen-free epoxy resin material is free of halogen residues, extremely high in purity, free of residual phosphate raw materials, free of corrosion of circuits and electronic devices and capable of being applied to the field of advanced electronic packaging. # imgabs0 #

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 invention belongs to the field of spintronics, and discloses a method for remarkably regulating and controlling spin orbit torque based on a magnetic phase change material iron-rhodium alloy, the method is a heterojunction constructed based on the magnetic phase change material iron-rhodium alloy, and the heterojunction has a Hall target structure. Comprising a magnetic phase change material iron-rhodium alloy layer, and a non-magnetic light metal layer, a ferromagnetic layer and a covering layer which are positioned on the iron-rhodium alloy layer and are sequentially stacked from bottom to top, the ferromagnetic layer has the characteristic of perpendicular magnetic anisotropy; the iron-rhodium alloy layer serves as a spin source layer, and the magnetic phase change material iron-rhodium alloy can be subjected to antiferromagnetic-ferromagnetic first-order phase transformation along with temperature change. According to the invention, the iron-rhodium alloy is used as the spin source layer, a vertical magnetization heterojunction of the iron-rhodium alloy layer / the non-magnetic light metal layer / the ferromagnetic layer / the covering layer is formed, and efficient regulation and control of the spin orbit torque can be realized (especially remarkable regulation and control of 450% of the spin orbit torque can be realized).

The axial flow fan mounting structure comprises vertical rods and transverse rods which are used for mounting an axial flow fan body, the transverse rods are divided into two transverse groups, the vertical rods are detachably connected between the two transverse groups, preformed holes are formed in the centers of the vertical rods and the transverse rods, and the connecting distance between the vertical rods and the transverse rods can be adjusted according to the size of the axial flow fan body. The axial flow fan body is detachably installed between the vertical rod and the transverse rod. According to the axial flow fan, one end of the vertical rod and one end of the cross rod are detachably connected with the first connecting corner, and the first self-tapping screw with the model number of 14 # * 25 is inserted into one end of the first connecting corner, so that the vertical rod and the cross rod can be accurately matched, and the stability and reliability of the whole axial flow fan body during installation are improved; and in addition, when faults occur, repairing or replacing can be conducted in time, the practical practicability is improved, dismounting and overhauling work can be completed without consuming much time, and the fixity can be greatly improved.

The present invention discloses a die-cast aluminum alloy and a preparation method and application thereof, and belongs to the technical field of metal materials. The die-cast aluminum alloy provided by the present invention is composed of the following components in mass percentage: 10.5-13% Si, 0.4-0.8% Fe, 0-0.45% Mn, 0.25-0.45% Mg, 0.06-0.1% Ti, 0.05-0.12% Zr, 0.005-0.01% B, 0.015-0.03% Sr, and the remainder is impurity elements and Al; the sum of the mass percentages of Mn and Fe is 0.7-0.9%. The present invention is based on Al-Si alloy, designs a higher Fe content, and prepares a die-cast aluminum alloy with good casting formability and high strength and toughness through the composition optimization design of the main alloy components of Si, Fe, and Mg and the trace elements of Ti, B, Sr, Zr, and Mn.

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.

The invention provides hydrophilic secondary amino resin and a preparation method thereof, and relates to the technical field of amino resin. The hydrophilic secondary amino resin has a PA-L-CH-L-PA structure,-CH-is a hydrophilic structure,-L-is an intermediate structure,-PA is an aspartic resin structure, and the hydrophilic secondary amino resin can be obtained by carrying out imide reaction on aspartic ester resin, then reacting with a diisocyanate compound and then reacting with aspartic ester resin. The hydrophilic secondary amino resin disclosed by the invention has the characteristics of adjustable hydrophilicity, good hydrolysis resistance and the like.

The invention discloses an anodized aluminum oxide / polyvinylidene fluoride trifluoroethylene thin film and preparation of the anodized aluminum oxide / polyvinylidene fluoride trifluoroethylene thin film. The anodic aluminum oxide / polyvinylidene fluoride trifluoroethylene film is composed of an upper PVTF film layer subjected to polarization treatment and a lower anodic aluminum oxide film layer and serves as an electroactive Janus composite film, the two sides of the film have asymmetric properties and structures including wettability, conductivity and chemical activity, and the film has adjustable surface potential. A bone repair structure and an electrical microenvironment can be simulated at the same time, cell behaviors are regulated and controlled, and tissue repair and regeneration are promoted.

The invention provides a wide-linearity, high-sensitivity and zero-field-blind-spot-free giant magneto-impedance sensor probe. The giant magneto-impedance sensor probe comprises a magneto-sensitive material and a solenoid. The magnetic sensitive material is arranged in the solenoid, and the magnetic sensitive material is not in contact with the solenoid; the magnetic sensitive material is a nanocrystalline magnetic conductive sheet subjected to copper-clad magnetic field annealing heat treatment, and the magnetic sensitive material is prepared according to the following method: arranging the nanocrystalline magnetic conductive sheet on a lower copper sheet, and then arranging an upper copper sheet on the magnetic conductive sheet to obtain an assembly; and annealing the obtained assembly under the action of a magnetic field, and removing the copper sheet to obtain the magnetic sensitive material. The probe has the advantages of wide linearity, high sensitivity and no zero field blind spot.